./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1e66de05904ac2de77ce48b56d6931182ba71ee4 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....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1e66de05904ac2de77ce48b56d6931182ba71ee4 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 06:40:52,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 06:40:52,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 06:40:52,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 06:40:52,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 06:40:52,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 06:40:52,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 06:40:52,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 06:40:52,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 06:40:52,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 06:40:52,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 06:40:52,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 06:40:52,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 06:40:52,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 06:40:52,130 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 06:40:52,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 06:40:52,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 06:40:52,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 06:40:52,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 06:40:52,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 06:40:52,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 06:40:52,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 06:40:52,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 06:40:52,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 06:40:52,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 06:40:52,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 06:40:52,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 06:40:52,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 06:40:52,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 06:40:52,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 06:40:52,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 06:40:52,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 06:40:52,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 06:40:52,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 06:40:52,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 06:40:52,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 06:40:52,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 06:40:52,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 06:40:52,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 06:40:52,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 06:40:52,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 06:40:52,164 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 06:40:52,193 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 06:40:52,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 06:40:52,194 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 06:40:52,195 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 06:40:52,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 06:40:52,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 06:40:52,197 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 06:40:52,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 06:40:52,197 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 06:40:52,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 06:40:52,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 06:40:52,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 06:40:52,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 06:40:52,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 06:40:52,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 06:40:52,199 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 06:40:52,199 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 06:40:52,199 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 06:40:52,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 06:40:52,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 06:40:52,200 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 06:40:52,200 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 06:40:52,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:40:52,200 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 06:40:52,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 06:40:52,201 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 06:40:52,201 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 06:40:52,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 06:40:52,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 06:40:52,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 06:40:52,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e66de05904ac2de77ce48b56d6931182ba71ee4 [2021-08-29 06:40:52,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 06:40:52,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 06:40:52,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 06:40:52,495 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 06:40:52,495 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 06:40:52,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float3.c [2021-08-29 06:40:52,539 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df05e18e9/133b57dfa5154167b0303c402a2b1546/FLAG705c7af1f [2021-08-29 06:40:52,887 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 06:40:52,887 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float3.c [2021-08-29 06:40:52,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df05e18e9/133b57dfa5154167b0303c402a2b1546/FLAG705c7af1f [2021-08-29 06:40:53,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df05e18e9/133b57dfa5154167b0303c402a2b1546 [2021-08-29 06:40:53,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 06:40:53,087 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 06:40:53,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 06:40:53,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 06:40:53,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 06:40:53,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:40:53" (1/1) ... [2021-08-29 06:40:53,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38cad46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:53, skipping insertion in model container [2021-08-29 06:40:53,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:40:53" (1/1) ... [2021-08-29 06:40:53,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 06:40:53,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 06:40:53,186 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float3.c[465,478] [2021-08-29 06:40:53,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:40:53,194 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 06:40:53,202 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float3.c[465,478] [2021-08-29 06:40:53,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:40:53,232 INFO L208 MainTranslator]: Completed translation [2021-08-29 06:40:53,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:53 WrapperNode [2021-08-29 06:40:53,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 06:40:53,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 06:40:53,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 06:40:53,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 06:40:53,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:53" (1/1) ... [2021-08-29 06:40:53,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:53" (1/1) ... [2021-08-29 06:40:53,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 06:40:53,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 06:40:53,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 06:40:53,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 06:40:53,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:53" (1/1) ... [2021-08-29 06:40:53,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:53" (1/1) ... [2021-08-29 06:40:53,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:53" (1/1) ... [2021-08-29 06:40:53,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:53" (1/1) ... [2021-08-29 06:40:53,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:53" (1/1) ... [2021-08-29 06:40:53,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:53" (1/1) ... [2021-08-29 06:40:53,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:53" (1/1) ... [2021-08-29 06:40:53,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 06:40:53,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 06:40:53,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 06:40:53,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 06:40:53,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:53" (1/1) ... [2021-08-29 06:40:53,286 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:40:53,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 06:40:53,314 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 06:40:53,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 06:40:53,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 06:40:53,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 06:40:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 06:40:53,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 06:40:53,488 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 06:40:53,488 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-29 06:40:53,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:40:53 BoogieIcfgContainer [2021-08-29 06:40:53,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 06:40:53,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 06:40:53,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 06:40:53,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 06:40:53,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:40:53" (1/3) ... [2021-08-29 06:40:53,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d87dbed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:40:53, skipping insertion in model container [2021-08-29 06:40:53,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:53" (2/3) ... [2021-08-29 06:40:53,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d87dbed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:40:53, skipping insertion in model container [2021-08-29 06:40:53,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:40:53" (3/3) ... [2021-08-29 06:40:53,495 INFO L111 eAbstractionObserver]: Analyzing ICFG float3.c [2021-08-29 06:40:53,501 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 06:40:53,501 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 06:40:53,548 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 06:40:53,557 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 06:40:53,557 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 06:40:53,567 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:40:53,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-29 06:40:53,573 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:40:53,573 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-29 06:40:53,574 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 06:40:53,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:40:53,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2021-08-29 06:40:53,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 06:40:53,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907112045] [2021-08-29 06:40:53,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:40:53,592 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 06:40:53,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 06:40:53,668 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 06:40:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 06:40:53,709 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 06:40:53,710 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 06:40:53,711 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 06:40:53,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 06:40:53,718 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 06:40:53,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:40:53 BoogieIcfgContainer [2021-08-29 06:40:53,734 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 06:40:53,736 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 06:40:53,736 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 06:40:53,736 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 06:40:53,737 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:40:53" (3/4) ... [2021-08-29 06:40:53,739 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-29 06:40:53,739 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 06:40:53,740 INFO L158 Benchmark]: Toolchain (without parser) took 653.04ms. Allocated memory is still 56.6MB. Free memory was 41.8MB in the beginning and 30.2MB in the end (delta: 11.6MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2021-08-29 06:40:53,741 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 44.0MB. Free memory was 26.5MB in the beginning and 26.5MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:40:53,741 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.01ms. Allocated memory is still 56.6MB. Free memory was 41.6MB in the beginning and 41.0MB in the end (delta: 626.0kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 06:40:53,742 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.18ms. Allocated memory is still 56.6MB. Free memory was 40.8MB in the beginning and 39.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:40:53,743 INFO L158 Benchmark]: Boogie Preprocessor took 11.08ms. Allocated memory is still 56.6MB. Free memory was 39.5MB in the beginning and 38.6MB in the end (delta: 895.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:40:53,746 INFO L158 Benchmark]: RCFGBuilder took 208.30ms. Allocated memory is still 56.6MB. Free memory was 38.4MB in the beginning and 30.5MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 06:40:53,747 INFO L158 Benchmark]: TraceAbstraction took 243.46ms. Allocated memory is still 56.6MB. Free memory was 30.2MB in the beginning and 30.5MB in the end (delta: -291.2kB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2021-08-29 06:40:53,748 INFO L158 Benchmark]: Witness Printer took 2.98ms. Allocated memory is still 56.6MB. Free memory was 30.5MB in the beginning and 30.2MB in the end (delta: 294.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:40:53,753 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 44.0MB. Free memory was 26.5MB in the beginning and 26.5MB in the end (delta: 28.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.01ms. Allocated memory is still 56.6MB. Free memory was 41.6MB in the beginning and 41.0MB in the end (delta: 626.0kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.18ms. Allocated memory is still 56.6MB. Free memory was 40.8MB in the beginning and 39.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 11.08ms. Allocated memory is still 56.6MB. Free memory was 39.5MB in the beginning and 38.6MB in the end (delta: 895.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 208.30ms. Allocated memory is still 56.6MB. Free memory was 38.4MB in the beginning and 30.5MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 243.46ms. Allocated memory is still 56.6MB. Free memory was 30.2MB in the beginning and 30.5MB in the end (delta: -291.2kB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. * Witness Printer took 2.98ms. Allocated memory is still 56.6MB. Free memory was 30.5MB in the beginning and 30.2MB in the end (delta: 294.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 26]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 26, overapproximation of someBinaryArithmeticDOUBLEoperation at line 22. Possible FailurePath: [L6] double d = 0.0; VAL [d=0] [L15] int x = 2; [L17] COND TRUE __VERIFIER_nondet_int() [L18] x = 4 VAL [d=0] [L10] d = 1.0 VAL [d=1] [L22] d += (x == 2) [L24] d += (x > 3) [L26] COND TRUE !(d == 2.0) [L26] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 169.74ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 7.54ms, AutomataDifference: 0.00ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 7.57ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.41ms SsaConstructionTime, 28.48ms SatisfiabilityAnalysisTime, 0.00ms InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 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 [2021-08-29 06:40:53,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 06:40:55,662 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 06:40:55,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 06:40:55,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 06:40:55,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 06:40:55,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 06:40:55,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 06:40:55,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 06:40:55,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 06:40:55,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 06:40:55,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 06:40:55,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 06:40:55,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 06:40:55,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 06:40:55,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 06:40:55,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 06:40:55,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 06:40:55,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 06:40:55,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 06:40:55,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 06:40:55,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 06:40:55,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 06:40:55,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 06:40:55,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 06:40:55,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 06:40:55,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 06:40:55,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 06:40:55,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 06:40:55,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 06:40:55,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 06:40:55,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 06:40:55,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 06:40:55,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 06:40:55,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 06:40:55,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 06:40:55,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 06:40:55,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 06:40:55,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 06:40:55,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 06:40:55,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 06:40:55,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 06:40:55,746 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 06:40:55,774 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 06:40:55,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 06:40:55,775 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 06:40:55,776 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 06:40:55,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 06:40:55,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 06:40:55,777 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 06:40:55,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 06:40:55,778 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 06:40:55,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 06:40:55,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 06:40:55,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 06:40:55,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 06:40:55,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 06:40:55,779 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 06:40:55,779 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 06:40:55,779 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 06:40:55,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 06:40:55,779 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 06:40:55,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 06:40:55,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 06:40:55,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 06:40:55,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 06:40:55,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:40:55,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 06:40:55,789 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 06:40:55,789 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 06:40:55,790 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 06:40:55,790 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 06:40:55,790 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 06:40:55,790 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 06:40:55,790 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 06:40:55,791 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e66de05904ac2de77ce48b56d6931182ba71ee4 [2021-08-29 06:40:56,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 06:40:56,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 06:40:56,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 06:40:56,116 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 06:40:56,117 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 06:40:56,118 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float3.c [2021-08-29 06:40:56,199 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e03a3dcfc/9efd444617554c198cffdb658753882a/FLAGb5e98f6a2 [2021-08-29 06:40:56,552 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 06:40:56,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float3.c [2021-08-29 06:40:56,558 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e03a3dcfc/9efd444617554c198cffdb658753882a/FLAGb5e98f6a2 [2021-08-29 06:40:56,569 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e03a3dcfc/9efd444617554c198cffdb658753882a [2021-08-29 06:40:56,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 06:40:56,573 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 06:40:56,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 06:40:56,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 06:40:56,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 06:40:56,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:40:56" (1/1) ... [2021-08-29 06:40:56,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1956c255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:56, skipping insertion in model container [2021-08-29 06:40:56,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:40:56" (1/1) ... [2021-08-29 06:40:56,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 06:40:56,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 06:40:56,708 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float3.c[465,478] [2021-08-29 06:40:56,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:40:56,726 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 06:40:56,753 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float3.c[465,478] [2021-08-29 06:40:56,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:40:56,772 INFO L208 MainTranslator]: Completed translation [2021-08-29 06:40:56,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:56 WrapperNode [2021-08-29 06:40:56,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 06:40:56,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 06:40:56,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 06:40:56,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 06:40:56,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:56" (1/1) ... [2021-08-29 06:40:56,786 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:56" (1/1) ... [2021-08-29 06:40:56,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 06:40:56,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 06:40:56,800 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 06:40:56,800 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 06:40:56,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:56" (1/1) ... [2021-08-29 06:40:56,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:56" (1/1) ... [2021-08-29 06:40:56,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:56" (1/1) ... [2021-08-29 06:40:56,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:56" (1/1) ... [2021-08-29 06:40:56,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:56" (1/1) ... [2021-08-29 06:40:56,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:56" (1/1) ... [2021-08-29 06:40:56,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:56" (1/1) ... [2021-08-29 06:40:56,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 06:40:56,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 06:40:56,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 06:40:56,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 06:40:56,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:56" (1/1) ... [2021-08-29 06:40:56,840 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:40:56,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 06:40:56,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 06:40:56,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 06:40:56,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 06:40:56,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 06:40:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 06:40:56,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 06:40:57,081 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 06:40:57,081 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-29 06:40:57,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:40:57 BoogieIcfgContainer [2021-08-29 06:40:57,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 06:40:57,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 06:40:57,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 06:40:57,085 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 06:40:57,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:40:56" (1/3) ... [2021-08-29 06:40:57,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5335fbd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:40:57, skipping insertion in model container [2021-08-29 06:40:57,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:40:56" (2/3) ... [2021-08-29 06:40:57,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5335fbd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:40:57, skipping insertion in model container [2021-08-29 06:40:57,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:40:57" (3/3) ... [2021-08-29 06:40:57,090 INFO L111 eAbstractionObserver]: Analyzing ICFG float3.c [2021-08-29 06:40:57,093 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 06:40:57,094 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 06:40:57,131 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 06:40:57,137 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 06:40:57,137 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 06:40:57,153 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:40:57,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-29 06:40:57,156 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:40:57,157 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-29 06:40:57,158 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 06:40:57,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:40:57,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2021-08-29 06:40:57,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 06:40:57,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1966197211] [2021-08-29 06:40:57,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:40:57,170 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 06:40:57,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 06:40:57,208 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 06:40:57,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-29 06:40:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:40:57,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-29 06:40:57,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 06:40:57,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:40:57,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 06:41:06,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:06,072 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 06:41:06,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1966197211] [2021-08-29 06:41:06,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1966197211] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 06:41:06,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 06:41:06,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-08-29 06:41:06,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973994447] [2021-08-29 06:41:06,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-29 06:41:06,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 06:41:06,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-29 06:41:06,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-08-29 06:41:06,103 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 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:14,228 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 06:41:14,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 06:41:14,779 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-08-29 06:41:14,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-29 06:41:14,782 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 7 [2021-08-29 06:41:14,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 06:41:14,785 INFO L225 Difference]: With dead ends: 20 [2021-08-29 06:41:14,785 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 06:41:14,787 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 11343.96ms TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-08-29 06:41:14,789 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 18 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2556.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.60ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2606.38ms IncrementalHoareTripleChecker+Time [2021-08-29 06:41:14,789 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 0 Invalid, 49 Unknown, 0 Unchecked, 1.60ms Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 2606.38ms Time] [2021-08-29 06:41:14,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 06:41:14,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 06:41:14,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:14,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 06:41:14,807 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-08-29 06:41:14,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 06:41:14,807 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 06:41:14,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 06:41:14,808 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 06:41:14,808 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 06:41:14,809 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 06:41:14,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-29 06:41:15,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 06:41:15,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 06:41:15,015 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 06:41:15,015 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 06:41:15,016 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 06:41:15,016 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 06:41:15,016 INFO L858 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2021-08-29 06:41:15,016 INFO L858 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2021-08-29 06:41:15,016 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) no Hoare annotation was computed. [2021-08-29 06:41:15,017 INFO L858 garLoopResultBuilder]: For program point L17(lines 17 18) no Hoare annotation was computed. [2021-08-29 06:41:15,017 INFO L858 garLoopResultBuilder]: For program point L17-2(lines 17 18) no Hoare annotation was computed. [2021-08-29 06:41:15,017 INFO L858 garLoopResultBuilder]: For program point L13(lines 13 27) no Hoare annotation was computed. [2021-08-29 06:41:15,017 INFO L858 garLoopResultBuilder]: For program point L8(lines 8 11) no Hoare annotation was computed. [2021-08-29 06:41:15,020 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 06:41:15,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:41:15 BoogieIcfgContainer [2021-08-29 06:41:15,022 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 06:41:15,023 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 06:41:15,023 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 06:41:15,023 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 06:41:15,023 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:40:57" (3/4) ... [2021-08-29 06:41:15,025 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 06:41:15,030 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-08-29 06:41:15,031 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-08-29 06:41:15,031 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 06:41:15,031 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 06:41:15,047 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 06:41:15,047 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 06:41:15,047 INFO L158 Benchmark]: Toolchain (without parser) took 18474.60ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 37.6MB in the beginning and 31.7MB in the end (delta: 5.9MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2021-08-29 06:41:15,048 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 58.7MB. Free memory was 40.8MB in the beginning and 40.8MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:41:15,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.14ms. Allocated memory is still 58.7MB. Free memory was 37.4MB in the beginning and 42.1MB in the end (delta: -4.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 06:41:15,048 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.37ms. Allocated memory is still 58.7MB. Free memory was 42.1MB in the beginning and 40.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:41:15,049 INFO L158 Benchmark]: Boogie Preprocessor took 32.82ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 39.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:41:15,049 INFO L158 Benchmark]: RCFGBuilder took 249.16ms. Allocated memory is still 58.7MB. Free memory was 39.4MB in the beginning and 31.1MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 06:41:15,049 INFO L158 Benchmark]: TraceAbstraction took 17938.91ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 30.7MB in the beginning and 34.2MB in the end (delta: -3.4MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2021-08-29 06:41:15,049 INFO L158 Benchmark]: Witness Printer took 23.99ms. Allocated memory is still 75.5MB. Free memory was 34.2MB in the beginning and 31.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 06:41:15,051 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 58.7MB. Free memory was 40.8MB in the beginning and 40.8MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 198.14ms. Allocated memory is still 58.7MB. Free memory was 37.4MB in the beginning and 42.1MB in the end (delta: -4.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.37ms. Allocated memory is still 58.7MB. Free memory was 42.1MB in the beginning and 40.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.82ms. Allocated memory is still 58.7MB. Free memory was 40.6MB in the beginning and 39.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 249.16ms. Allocated memory is still 58.7MB. Free memory was 39.4MB in the beginning and 31.1MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 17938.91ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 30.7MB in the beginning and 34.2MB in the end (delta: -3.4MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Witness Printer took 23.99ms. Allocated memory is still 75.5MB. Free memory was 34.2MB in the beginning and 31.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 26]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17890.10ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 6.06ms, AutomataDifference: 8711.63ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 3.13ms, InitialAbstractionConstructionTime: 13.03ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 2606.38ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 2556.32ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 45 mSolverCounterSat, 1.60ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 11343.96ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 7.59ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.00ms HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.00ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 7.82ms SsaConstructionTime, 204.75ms SatisfiabilityAnalysisTime, 8537.90ms InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 125 SizeOfPredicates, 3 NumberOfNonLiveVariables, 30 ConjunctsInSsa, 5 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-29 06:41:15,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...