./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 e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE --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_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE --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-e943c26 [2021-10-24 10:40:23,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:40:23,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:40:23,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:40:23,594 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:40:23,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:40:23,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:40:23,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:40:23,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:40:23,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:40:23,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:40:23,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:40:23,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:40:23,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:40:23,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:40:23,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:40:23,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:40:23,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:40:23,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:40:23,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:40:23,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:40:23,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:40:23,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:40:23,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:40:23,650 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:40:23,651 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:40:23,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:40:23,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:40:23,658 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:40:23,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:40:23,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:40:23,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:40:23,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:40:23,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:40:23,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:40:23,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:40:23,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:40:23,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:40:23,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:40:23,670 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:40:23,671 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:40:23,672 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:40:23,714 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:40:23,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:40:23,727 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:40:23,728 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:40:23,728 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:40:23,729 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:40:23,729 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:40:23,729 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:40:23,729 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:40:23,729 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:40:23,734 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:40:23,734 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:40:23,735 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:40:23,735 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:40:23,735 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:40:23,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:40:23,736 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:40:23,736 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:40:23,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:40:23,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:40:23,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:40:23,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:40:23,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:40:23,738 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:40:23,738 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:40:23,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:40:23,738 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:40:23,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:40:23,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:40:23,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:40:23,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:40:23,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:40:23,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:40:23,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:40:23,741 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:40:23,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:40:23,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:40:23,741 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:40:23,741 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:40:23,742 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_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bc1038ca8efd0f96b9908fab068be8086a547e37f42c19a7cedaa5031052775 [2021-10-24 10:40:24,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:40:24,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:40:24,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:40:24,048 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:40:24,049 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:40:24,050 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/floats-cdfpl/sine_3.i [2021-10-24 10:40:24,106 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/data/d8fd78623/a30191423d0b40f991a00f6462ecd2a3/FLAG5eb33c18b [2021-10-24 10:40:24,530 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:40:24,530 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/sv-benchmarks/c/floats-cdfpl/sine_3.i [2021-10-24 10:40:24,536 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/data/d8fd78623/a30191423d0b40f991a00f6462ecd2a3/FLAG5eb33c18b [2021-10-24 10:40:24,931 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/data/d8fd78623/a30191423d0b40f991a00f6462ecd2a3 [2021-10-24 10:40:24,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:40:24,935 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:40:24,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:40:24,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:40:24,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:40:24,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:40:24" (1/1) ... [2021-10-24 10:40:24,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dba4d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:24, skipping insertion in model container [2021-10-24 10:40:24,946 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:40:24" (1/1) ... [2021-10-24 10:40:24,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:40:24,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:40:25,156 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_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/sv-benchmarks/c/floats-cdfpl/sine_3.i[1147,1160] [2021-10-24 10:40:25,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:40:25,168 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:40:25,184 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_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/sv-benchmarks/c/floats-cdfpl/sine_3.i[1147,1160] [2021-10-24 10:40:25,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:40:25,198 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:40:25,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:25 WrapperNode [2021-10-24 10:40:25,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:40:25,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:40:25,200 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:40:25,200 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:40:25,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:25" (1/1) ... [2021-10-24 10:40:25,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:25" (1/1) ... [2021-10-24 10:40:25,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:40:25,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:40:25,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:40:25,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:40:25,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:25" (1/1) ... [2021-10-24 10:40:25,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:25" (1/1) ... [2021-10-24 10:40:25,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:25" (1/1) ... [2021-10-24 10:40:25,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:25" (1/1) ... [2021-10-24 10:40:25,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:25" (1/1) ... [2021-10-24 10:40:25,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:25" (1/1) ... [2021-10-24 10:40:25,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:25" (1/1) ... [2021-10-24 10:40:25,251 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:40:25,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:40:25,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:40:25,252 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:40:25,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:25" (1/1) ... [2021-10-24 10:40:25,261 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:40:25,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:40:25,288 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:40:25,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:40:25,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 10:40:25,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:40:25,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:40:25,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:40:25,570 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:40:25,571 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-24 10:40:25,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:40:25 BoogieIcfgContainer [2021-10-24 10:40:25,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:40:25,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:40:25,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:40:25,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:40:25,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:40:24" (1/3) ... [2021-10-24 10:40:25,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ae6b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:40:25, skipping insertion in model container [2021-10-24 10:40:25,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:25" (2/3) ... [2021-10-24 10:40:25,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ae6b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:40:25, skipping insertion in model container [2021-10-24 10:40:25,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:40:25" (3/3) ... [2021-10-24 10:40:25,583 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_3.i [2021-10-24 10:40:25,588 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:40:25,588 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 10:40:25,663 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:40:25,689 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 [2021-10-24 10:40:25,689 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 10:40:25,706 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) [2021-10-24 10:40:25,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-24 10:40:25,716 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:40:25,717 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-24 10:40:25,717 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:40:25,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:40:25,723 INFO L82 PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times [2021-10-24 10:40:25,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:40:25,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520976664] [2021-10-24 10:40:25,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:40:25,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:40:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:40:25,841 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:40:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:40:25,887 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-24 10:40:25,891 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:40:25,892 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:40:25,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 10:40:25,901 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:40:25,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:40:25 BoogieIcfgContainer [2021-10-24 10:40:25,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:40:25,930 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:40:25,930 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:40:25,930 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:40:25,931 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:40:25" (3/4) ... [2021-10-24 10:40:25,937 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 10:40:25,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:40:25,941 INFO L168 Benchmark]: Toolchain (without parser) took 1003.31 ms. Allocated memory is still 92.3 MB. Free memory was 51.5 MB in the beginning and 40.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:40:25,943 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory is still 67.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:40:25,944 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.74 ms. Allocated memory is still 92.3 MB. Free memory was 51.3 MB in the beginning and 67.6 MB in the end (delta: -16.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:40:25,945 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.15 ms. Allocated memory is still 92.3 MB. Free memory was 67.4 MB in the beginning and 66.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:40:25,947 INFO L168 Benchmark]: Boogie Preprocessor took 18.83 ms. Allocated memory is still 92.3 MB. Free memory was 66.0 MB in the beginning and 65.0 MB in the end (delta: 954.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:40:25,948 INFO L168 Benchmark]: RCFGBuilder took 321.62 ms. Allocated memory is still 92.3 MB. Free memory was 65.0 MB in the beginning and 54.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:40:25,950 INFO L168 Benchmark]: TraceAbstraction took 350.98 ms. Allocated memory is still 92.3 MB. Free memory was 53.8 MB in the beginning and 41.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:40:25,955 INFO L168 Benchmark]: Witness Printer took 7.27 ms. Allocated memory is still 92.3 MB. Free memory was 41.2 MB in the beginning and 40.8 MB in the end (delta: 475.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:40:25,962 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 92.3 MB. Free memory is still 67.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.74 ms. Allocated memory is still 92.3 MB. Free memory was 51.3 MB in the beginning and 67.6 MB in the end (delta: -16.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.15 ms. Allocated memory is still 92.3 MB. Free memory was 67.4 MB in the beginning and 66.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.83 ms. Allocated memory is still 92.3 MB. Free memory was 66.0 MB in the beginning and 65.0 MB in the end (delta: 954.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 321.62 ms. Allocated memory is still 92.3 MB. Free memory was 65.0 MB in the beginning and 54.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 350.98 ms. Allocated memory is still 92.3 MB. Free memory was 53.8 MB in the beginning and 41.2 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 7.27 ms. Allocated memory is still 92.3 MB. Free memory was 41.2 MB in the beginning and 40.8 MB in the end (delta: 475.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 28]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 25. Possible FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] COND TRUE !(result <= 1.001f && 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: 238.2ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 17.2ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.3ms SsaConstructionTime, 38.7ms SatisfiabilityAnalysisTime, 0.0ms 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 [2021-10-24 10:40:26,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/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-e943c26 [2021-10-24 10:40:28,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:40:28,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:40:28,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:40:28,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:40:28,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:40:28,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:40:28,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:40:28,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:40:28,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:40:28,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:40:28,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:40:28,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:40:28,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:40:28,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:40:28,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:40:28,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:40:28,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:40:28,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:40:28,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:40:28,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:40:28,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:40:28,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:40:28,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:40:28,635 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:40:28,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:40:28,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:40:28,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:40:28,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:40:28,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:40:28,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:40:28,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:40:28,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:40:28,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:40:28,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:40:28,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:40:28,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:40:28,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:40:28,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:40:28,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:40:28,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:40:28,664 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 10:40:28,707 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:40:28,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:40:28,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:40:28,709 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:40:28,710 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:40:28,710 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:40:28,710 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:40:28,710 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:40:28,711 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:40:28,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:40:28,713 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:40:28,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:40:28,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:40:28,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:40:28,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:40:28,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:40:28,715 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:40:28,715 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:40:28,715 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:40:28,715 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:40:28,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:40:28,716 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:40:28,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:40:28,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:40:28,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:40:28,717 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:40:28,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:40:28,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:40:28,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:40:28,718 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:40:28,718 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:40:28,718 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:40:28,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:40:28,719 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:40:28,719 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:40:28,720 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_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bc1038ca8efd0f96b9908fab068be8086a547e37f42c19a7cedaa5031052775 [2021-10-24 10:40:29,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:40:29,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:40:29,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:40:29,149 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:40:29,150 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:40:29,151 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/floats-cdfpl/sine_3.i [2021-10-24 10:40:29,223 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/data/132fd360b/c80d299b288a4700935019c41588fd26/FLAG2aeb14946 [2021-10-24 10:40:29,725 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:40:29,726 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/sv-benchmarks/c/floats-cdfpl/sine_3.i [2021-10-24 10:40:29,732 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/data/132fd360b/c80d299b288a4700935019c41588fd26/FLAG2aeb14946 [2021-10-24 10:40:30,179 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/data/132fd360b/c80d299b288a4700935019c41588fd26 [2021-10-24 10:40:30,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:40:30,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:40:30,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:40:30,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:40:30,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:40:30,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:40:30" (1/1) ... [2021-10-24 10:40:30,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cd47842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:30, skipping insertion in model container [2021-10-24 10:40:30,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:40:30" (1/1) ... [2021-10-24 10:40:30,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:40:30,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:40:30,349 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_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/sv-benchmarks/c/floats-cdfpl/sine_3.i[1147,1160] [2021-10-24 10:40:30,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:40:30,365 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:40:30,405 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_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/sv-benchmarks/c/floats-cdfpl/sine_3.i[1147,1160] [2021-10-24 10:40:30,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:40:30,434 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:40:30,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:30 WrapperNode [2021-10-24 10:40:30,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:40:30,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:40:30,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:40:30,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:40:30,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:30" (1/1) ... [2021-10-24 10:40:30,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:30" (1/1) ... [2021-10-24 10:40:30,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:40:30,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:40:30,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:40:30,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:40:30,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:30" (1/1) ... [2021-10-24 10:40:30,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:30" (1/1) ... [2021-10-24 10:40:30,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:30" (1/1) ... [2021-10-24 10:40:30,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:30" (1/1) ... [2021-10-24 10:40:30,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:30" (1/1) ... [2021-10-24 10:40:30,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:30" (1/1) ... [2021-10-24 10:40:30,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:30" (1/1) ... [2021-10-24 10:40:30,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:40:30,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:40:30,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:40:30,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:40:30,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:30" (1/1) ... [2021-10-24 10:40:30,549 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:40:30,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:40:30,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:40:30,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:40:30,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:40:30,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:40:30,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:40:30,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:40:33,115 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:40:33,115 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-24 10:40:33,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:40:33 BoogieIcfgContainer [2021-10-24 10:40:33,117 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:40:33,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:40:33,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:40:33,122 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:40:33,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:40:30" (1/3) ... [2021-10-24 10:40:33,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1a17c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:40:33, skipping insertion in model container [2021-10-24 10:40:33,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:40:30" (2/3) ... [2021-10-24 10:40:33,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1a17c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:40:33, skipping insertion in model container [2021-10-24 10:40:33,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:40:33" (3/3) ... [2021-10-24 10:40:33,126 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_3.i [2021-10-24 10:40:33,132 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:40:33,132 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 10:40:33,177 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:40:33,183 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 [2021-10-24 10:40:33,183 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 10:40:33,193 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) [2021-10-24 10:40:33,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-24 10:40:33,197 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:40:33,198 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-24 10:40:33,198 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:40:33,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:40:33,204 INFO L82 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-10-24 10:40:33,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:40:33,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [719954262] [2021-10-24 10:40:33,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:40:33,218 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:40:33,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:40:33,229 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:40:33,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:40:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:40:34,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 10:40:34,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:40:34,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:40:34,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:40:34,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:40:34,215 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:40:34,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [719954262] [2021-10-24 10:40:34,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [719954262] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:40:34,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:40:34,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 10:40:34,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963515998] [2021-10-24 10:40:34,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 10:40:34,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:40:34,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 10:40:34,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:40:34,251 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) [2021-10-24 10:40:34,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:40:34,265 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-10-24 10:40:34,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 10:40:34,267 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 [2021-10-24 10:40:34,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:40:34,276 INFO L225 Difference]: With dead ends: 19 [2021-10-24 10:40:34,277 INFO L226 Difference]: Without dead ends: 7 [2021-10-24 10:40:34,279 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:40:34,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-10-24 10:40:34,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-24 10:40:34,308 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) [2021-10-24 10:40:34,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-10-24 10:40:34,311 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-10-24 10:40:34,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:40:34,311 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-10-24 10:40:34,311 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) [2021-10-24 10:40:34,312 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-10-24 10:40:34,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-24 10:40:34,312 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:40:34,313 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-24 10:40:34,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:40:34,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:40:34,534 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:40:34,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:40:34,535 INFO L82 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-10-24 10:40:34,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:40:34,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1374821676] [2021-10-24 10:40:34,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:40:34,537 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:40:34,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:40:34,538 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:40:34,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:49:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:49:42,919 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:49:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:49:52,941 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 10:49:52,941 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:49:52,943 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:49:52,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:49:53,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:49:53,151 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:49:53,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:49:53 BoogieIcfgContainer [2021-10-24 10:49:53,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:49:53,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:49:53,181 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:49:53,181 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:49:53,182 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:40:33" (3/4) ... [2021-10-24 10:49:53,184 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 10:49:53,229 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:49:53,229 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:49:53,240 INFO L168 Benchmark]: Toolchain (without parser) took 563047.63 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 37.1 MB in the beginning and 38.9 MB in the end (delta: -1.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:49:53,241 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 58.7 MB. Free memory is still 39.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:49:53,243 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.39 ms. Allocated memory is still 58.7 MB. Free memory was 37.0 MB in the beginning and 42.3 MB in the end (delta: -5.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:49:53,244 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.36 ms. Allocated memory is still 58.7 MB. Free memory was 42.3 MB in the beginning and 40.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:49:53,244 INFO L168 Benchmark]: Boogie Preprocessor took 50.81 ms. Allocated memory is still 58.7 MB. Free memory was 40.7 MB in the beginning and 39.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:49:53,245 INFO L168 Benchmark]: RCFGBuilder took 2576.76 ms. Allocated memory is still 58.7 MB. Free memory was 39.5 MB in the beginning and 30.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:49:53,247 INFO L168 Benchmark]: TraceAbstraction took 560060.72 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 29.9 MB in the beginning and 40.7 MB in the end (delta: -10.8 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2021-10-24 10:49:53,247 INFO L168 Benchmark]: Witness Printer took 48.73 ms. Allocated memory is still 73.4 MB. Free memory was 40.7 MB in the beginning and 38.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:49:53,255 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 58.7 MB. Free memory is still 39.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 250.39 ms. Allocated memory is still 58.7 MB. Free memory was 37.0 MB in the beginning and 42.3 MB in the end (delta: -5.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.36 ms. Allocated memory is still 58.7 MB. Free memory was 42.3 MB in the beginning and 40.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.81 ms. Allocated memory is still 58.7 MB. Free memory was 40.7 MB in the beginning and 39.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2576.76 ms. Allocated memory is still 58.7 MB. Free memory was 39.5 MB in the beginning and 30.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 560060.72 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 29.9 MB in the beginning and 40.7 MB in the end (delta: -10.8 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. * Witness Printer took 48.73 ms. Allocated memory is still 73.4 MB. Free memory was 40.7 MB in the beginning and 38.9 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 28]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] COND TRUE !(result <= 1.001f && 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: 559973.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 7.1ms, AutomataDifference: 51.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 17.0ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 30.8ms SsaConstructionTime, 549068.0ms SatisfiabilityAnalysisTime, 142.0ms 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! [2021-10-24 10:49:53,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f1d7ead-cb6a-41f1-9da3-ee8c980bd436/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...