/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 06:07:17,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 06:07:17,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 06:07:17,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 06:07:17,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 06:07:17,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 06:07:17,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 06:07:17,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 06:07:17,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 06:07:17,224 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 06:07:17,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 06:07:17,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 06:07:17,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 06:07:17,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 06:07:17,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 06:07:17,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 06:07:17,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 06:07:17,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 06:07:17,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 06:07:17,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 06:07:17,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 06:07:17,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 06:07:17,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 06:07:17,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 06:07:17,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 06:07:17,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 06:07:17,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 06:07:17,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 06:07:17,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 06:07:17,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 06:07:17,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 06:07:17,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 06:07:17,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 06:07:17,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 06:07:17,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 06:07:17,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 06:07:17,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 06:07:17,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 06:07:17,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 06:07:17,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 06:07:17,265 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 06:07:17,266 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 06:07:17,294 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 06:07:17,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 06:07:17,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 06:07:17,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 06:07:17,296 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 06:07:17,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 06:07:17,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 06:07:17,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 06:07:17,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 06:07:17,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 06:07:17,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 06:07:17,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 06:07:17,299 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 06:07:17,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 06:07:17,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 06:07:17,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 06:07:17,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 06:07:17,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:07:17,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 06:07:17,301 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 06:07:17,301 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 06:07:17,301 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 06:07:17,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 06:07:17,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 06:07:17,302 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 06:07:17,302 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 06:07:17,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 06:07:17,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 06:07:17,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 06:07:17,694 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 06:07:17,695 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 06:07:17,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c [2020-12-23 06:07:17,785 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/4d2775dda/5f207a2737054c4994c7ca4fe56bbbb3/FLAG405341b64 [2020-12-23 06:07:18,427 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 06:07:18,427 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c [2020-12-23 06:07:18,435 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/4d2775dda/5f207a2737054c4994c7ca4fe56bbbb3/FLAG405341b64 [2020-12-23 06:07:18,763 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/4d2775dda/5f207a2737054c4994c7ca4fe56bbbb3 [2020-12-23 06:07:18,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 06:07:18,768 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 06:07:18,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 06:07:18,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 06:07:18,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 06:07:18,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:07:18" (1/1) ... [2020-12-23 06:07:18,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@670ed431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:18, skipping insertion in model container [2020-12-23 06:07:18,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:07:18" (1/1) ... [2020-12-23 06:07:18,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 06:07:18,828 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~main__Y~0,] left hand side expression in assignment: lhs: VariableLHS[~main__i~0,] left hand side expression in assignment: lhs: VariableLHS[~main__X~0,] left hand side expression in assignment: lhs: VariableLHS[~main__D~0,] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~main__S~0,] left hand side expression in assignment: lhs: VariableLHS[~main__Y~0,] left hand side expression in assignment: lhs: VariableLHS[~main__R~0,] left hand side expression in assignment: lhs: VariableLHS[~main__Y~0,] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~__VERIFIER_assert__cond~0,] [2020-12-23 06:07:19,078 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c[1494,1507] left hand side expression in assignment: lhs: VariableLHS[~__tmp_160_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__tmp_160_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__tmp_160_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_2~0,] left hand side expression in assignment: lhs: VariableLHS[~main__i~0,] left hand side expression in assignment: lhs: VariableLHS[~main__X~0,] left hand side expression in assignment: lhs: VariableLHS[~main__D~0,] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~main__S~0,] left hand side expression in assignment: lhs: VariableLHS[~main__Y~0,] left hand side expression in assignment: lhs: VariableLHS[~main__R~0,] left hand side expression in assignment: lhs: VariableLHS[~main__Y~0,] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_2~1,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~__VERIFIER_assert__cond~1,] [2020-12-23 06:07:19,108 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c[2698,2711] left hand side expression in assignment: lhs: VariableLHS[~__tmp_160_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__tmp_160_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__tmp_160_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_2~1,] left hand side expression in assignment: lhs: VariableLHS[~main__Y~0,] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_165~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_2~0,] left hand side expression in assignment: lhs: VariableLHS[~main__Y~0,] [2020-12-23 06:07:19,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:07:19,140 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~main__Y~0,] left hand side expression in assignment: lhs: VariableLHS[~main__i~0,] left hand side expression in assignment: lhs: VariableLHS[~main__X~0,] left hand side expression in assignment: lhs: VariableLHS[~main__D~0,] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~main__S~0,] left hand side expression in assignment: lhs: VariableLHS[~main__Y~0,] left hand side expression in assignment: lhs: VariableLHS[~main__R~0,] left hand side expression in assignment: lhs: VariableLHS[~main__Y~0,] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_2~0,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_1~0,] left hand side expression in assignment: lhs: VariableLHS[~__VERIFIER_assert__cond~0,] [2020-12-23 06:07:19,159 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c[1494,1507] left hand side expression in assignment: lhs: VariableLHS[~__tmp_160_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__tmp_160_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__tmp_160_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~0,] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_1~0,] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_2~0,] left hand side expression in assignment: lhs: VariableLHS[~main__i~0,] left hand side expression in assignment: lhs: VariableLHS[~main__X~0,] left hand side expression in assignment: lhs: VariableLHS[~main__D~0,] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~main__S~0,] left hand side expression in assignment: lhs: VariableLHS[~main__Y~0,] left hand side expression in assignment: lhs: VariableLHS[~main__R~0,] left hand side expression in assignment: lhs: VariableLHS[~main__Y~0,] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_2~1,] left hand side expression in assignment: lhs: VariableLHS[~__tmp_2~0,] left hand side expression in assignment: lhs: VariableLHS[~__VERIFIER_assert__cond~1,] [2020-12-23 06:07:19,166 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+lhb-reducer.c[2698,2711] left hand side expression in assignment: lhs: VariableLHS[~__tmp_160_0~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__tmp_160_1~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~__tmp_160_2~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_2~1,] left hand side expression in assignment: lhs: VariableLHS[~main__Y~0,] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_1~1,] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_0~1,] left hand side expression in assignment: lhs: VariableLHS[~__return_165~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~main____CPAchecker_TMP_2~0,] left hand side expression in assignment: lhs: VariableLHS[~main__Y~0,] [2020-12-23 06:07:19,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:07:19,188 INFO L208 MainTranslator]: Completed translation [2020-12-23 06:07:19,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:19 WrapperNode [2020-12-23 06:07:19,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 06:07:19,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 06:07:19,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 06:07:19,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 06:07:19,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:19" (1/1) ... [2020-12-23 06:07:19,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:19" (1/1) ... [2020-12-23 06:07:19,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 06:07:19,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 06:07:19,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 06:07:19,235 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 06:07:19,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:19" (1/1) ... [2020-12-23 06:07:19,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:19" (1/1) ... [2020-12-23 06:07:19,247 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:19" (1/1) ... [2020-12-23 06:07:19,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:19" (1/1) ... [2020-12-23 06:07:19,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:19" (1/1) ... [2020-12-23 06:07:19,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:19" (1/1) ... [2020-12-23 06:07:19,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:19" (1/1) ... [2020-12-23 06:07:19,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 06:07:19,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 06:07:19,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 06:07:19,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 06:07:19,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:19" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:07:19,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 06:07:19,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 06:07:19,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 06:07:19,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 06:07:19,778 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 06:07:19,779 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 06:07:19,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:07:19 BoogieIcfgContainer [2020-12-23 06:07:19,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 06:07:19,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 06:07:19,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 06:07:19,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 06:07:19,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 06:07:18" (1/3) ... [2020-12-23 06:07:19,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c64ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:07:19, skipping insertion in model container [2020-12-23 06:07:19,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:07:19" (2/3) ... [2020-12-23 06:07:19,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43c64ec2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:07:19, skipping insertion in model container [2020-12-23 06:07:19,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:07:19" (3/3) ... [2020-12-23 06:07:19,802 INFO L111 eAbstractionObserver]: Analyzing ICFG rlim_invariant.c.v+lhb-reducer.c [2020-12-23 06:07:19,811 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 06:07:19,816 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-23 06:07:19,837 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-23 06:07:19,883 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 06:07:19,883 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 06:07:19,883 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 06:07:19,884 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 06:07:19,884 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 06:07:19,884 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 06:07:19,884 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 06:07:19,884 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 06:07:19,905 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2020-12-23 06:07:19,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-23 06:07:19,911 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:07:19,912 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:07:19,913 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:07:19,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:07:19,919 INFO L82 PathProgramCache]: Analyzing trace with hash 346658074, now seen corresponding path program 1 times [2020-12-23 06:07:19,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:07:19,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689803970] [2020-12-23 06:07:19,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:07:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:07:20,096 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:07:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:07:20,151 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:07:20,193 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 06:07:20,194 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 06:07:20,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 06:07:20,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 06:07:20 BoogieIcfgContainer [2020-12-23 06:07:20,279 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 06:07:20,281 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 06:07:20,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 06:07:20,281 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 06:07:20,282 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:07:19" (3/4) ... [2020-12-23 06:07:20,286 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-23 06:07:20,286 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 06:07:20,289 INFO L168 Benchmark]: Toolchain (without parser) took 1519.09 ms. Allocated memory is still 159.4 MB. Free memory was 133.8 MB in the beginning and 84.7 MB in the end (delta: 49.1 MB). Peak memory consumption was 49.3 MB. Max. memory is 8.0 GB. [2020-12-23 06:07:20,292 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 159.4 MB. Free memory is still 142.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:07:20,293 INFO L168 Benchmark]: CACSL2BoogieTranslator took 418.16 ms. Allocated memory is still 159.4 MB. Free memory was 133.7 MB in the beginning and 121.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-12-23 06:07:20,294 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.06 ms. Allocated memory is still 159.4 MB. Free memory was 121.7 MB in the beginning and 120.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:07:20,295 INFO L168 Benchmark]: Boogie Preprocessor took 27.53 ms. Allocated memory is still 159.4 MB. Free memory was 120.0 MB in the beginning and 118.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:07:20,297 INFO L168 Benchmark]: RCFGBuilder took 521.30 ms. Allocated memory is still 159.4 MB. Free memory was 118.8 MB in the beginning and 99.0 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-12-23 06:07:20,298 INFO L168 Benchmark]: TraceAbstraction took 493.61 ms. Allocated memory is still 159.4 MB. Free memory was 98.5 MB in the beginning and 85.0 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-12-23 06:07:20,299 INFO L168 Benchmark]: Witness Printer took 5.13 ms. Allocated memory is still 159.4 MB. Free memory was 85.0 MB in the beginning and 84.7 MB in the end (delta: 328.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:07:20,316 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 159.4 MB. Free memory is still 142.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 418.16 ms. Allocated memory is still 159.4 MB. Free memory was 133.7 MB in the beginning and 121.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 43.06 ms. Allocated memory is still 159.4 MB. Free memory was 121.7 MB in the beginning and 120.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.53 ms. Allocated memory is still 159.4 MB. Free memory was 120.0 MB in the beginning and 118.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 521.30 ms. Allocated memory is still 159.4 MB. Free memory was 118.8 MB in the beginning and 99.0 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 493.61 ms. Allocated memory is still 159.4 MB. Free memory was 98.5 MB in the beginning and 85.0 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Witness Printer took 5.13 ms. Allocated memory is still 159.4 MB. Free memory was 85.0 MB in the beginning and 84.7 MB in the end (delta: 328.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 67]: 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 49, overapproximation of someBinaryDOUBLEComparisonOperation at line 54, overapproximation of to_real at line 24, overapproximation of someBinaryArithmeticFLOAToperation at line 51. Possible FailurePath: [L1] int __return_main; [L12] int __tmp_160_0; [L13] int __tmp_160_1; [L14] int __tmp_160_2; [L15] int __return_165; VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] [L18] float main__X; [L19] float main__Y; [L20] float main__S; [L21] float main__R; [L22] float main__D; [L23] int main__i; [L24] main__Y = 0 [L25] main__i = 0 VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] [L26] COND TRUE main__i < 100000 [L28] main__X = __VERIFIER_nondet_float() [L29] main__D = __VERIFIER_nondet_float() [L30] int main____CPAchecker_TMP_0; VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] [L31] COND TRUE main__X >= -128.0 VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] [L33] COND TRUE main__X <= 128.0 [L35] main____CPAchecker_TMP_0 = 1 VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] [L36] COND TRUE main____CPAchecker_TMP_0 != 0 [L38] int main____CPAchecker_TMP_1; VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] [L39] COND TRUE main__D >= 0.0 VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] [L41] COND TRUE main__D <= 16.0 [L43] main____CPAchecker_TMP_1 = 1 VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] [L44] COND TRUE main____CPAchecker_TMP_1 != 0 [L46] main__S = main__Y [L47] main__Y = main__X [L48] main__R = main__X - main__S VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] [L49] COND TRUE main__R <= (-main__D) [L51] main__Y = main__S - main__D VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] [L53] int main____CPAchecker_TMP_2; VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] [L54] COND FALSE !(main__Y >= -129.0) VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] [L205] main____CPAchecker_TMP_2 = 0 VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] [L61] int __tmp_1; [L62] __tmp_1 = main____CPAchecker_TMP_2 [L63] int __VERIFIER_assert__cond; [L64] __VERIFIER_assert__cond = __tmp_1 VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] [L65] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] [L67] reach_error() VAL [__return_165=0, __return_main=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 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 Received shutdown request...