./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/sine_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer --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 8771fe52d76e2ea5bc3e8e7989f8459d27e5992c ........................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/sine_2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer --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 8771fe52d76e2ea5bc3e8e7989f8459d27e5992c ....................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:16:42,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:16:42,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:16:42,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:16:42,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:16:42,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:16:42,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:16:42,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:16:42,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:16:42,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:16:42,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:16:42,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:16:42,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:16:42,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:16:42,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:16:42,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:16:42,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:16:42,140 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:16:42,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:16:42,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:16:42,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:16:42,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:16:42,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:16:42,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:16:42,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:16:42,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:16:42,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:16:42,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:16:42,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:16:42,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:16:42,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:16:42,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:16:42,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:16:42,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:16:42,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:16:42,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:16:42,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:16:42,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:16:42,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:16:42,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:16:42,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:16:42,194 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 20:16:42,248 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:16:42,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:16:42,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:16:42,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:16:42,251 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:16:42,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:16:42,252 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:16:42,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:16:42,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:16:42,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:16:42,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:16:42,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:16:42,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:16:42,255 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:16:42,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:16:42,255 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:16:42,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:16:42,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:16:42,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:16:42,258 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:16:42,258 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:16:42,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:16:42,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:16:42,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:16:42,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:16:42,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:16:42,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:16:42,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:16:42,267 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:16:42,267 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:/tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8771fe52d76e2ea5bc3e8e7989f8459d27e5992c [2020-11-29 20:16:42,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:16:42,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:16:42,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:16:42,626 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:16:42,627 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:16:42,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/sine_2.i [2020-11-29 20:16:42,729 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/data/9e5d1263f/2856ee52a83b4ceaa6a510653f744f3e/FLAG877c5cfc8 [2020-11-29 20:16:43,437 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:16:43,438 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/sv-benchmarks/c/floats-cdfpl/sine_2.i [2020-11-29 20:16:43,446 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/data/9e5d1263f/2856ee52a83b4ceaa6a510653f744f3e/FLAG877c5cfc8 [2020-11-29 20:16:43,802 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/data/9e5d1263f/2856ee52a83b4ceaa6a510653f744f3e [2020-11-29 20:16:43,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:16:43,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:16:43,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:16:43,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:16:43,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:16:43,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:16:43" (1/1) ... [2020-11-29 20:16:43,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@595ed1bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:43, skipping insertion in model container [2020-11-29 20:16:43,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:16:43" (1/1) ... [2020-11-29 20:16:43,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:16:43,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:16:44,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:16:44,109 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:16:44,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:16:44,148 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:16:44,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:44 WrapperNode [2020-11-29 20:16:44,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:16:44,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:16:44,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:16:44,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:16:44,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:44" (1/1) ... [2020-11-29 20:16:44,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:44" (1/1) ... [2020-11-29 20:16:44,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:16:44,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:16:44,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:16:44,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:16:44,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:44" (1/1) ... [2020-11-29 20:16:44,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:44" (1/1) ... [2020-11-29 20:16:44,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:44" (1/1) ... [2020-11-29 20:16:44,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:44" (1/1) ... [2020-11-29 20:16:44,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:44" (1/1) ... [2020-11-29 20:16:44,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:44" (1/1) ... [2020-11-29 20:16:44,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:44" (1/1) ... [2020-11-29 20:16:44,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:16:44,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:16:44,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:16:44,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:16:44,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/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 [2020-11-29 20:16:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:16:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:16:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:16:44,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:16:44,548 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:16:44,549 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 20:16:44,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:16:44 BoogieIcfgContainer [2020-11-29 20:16:44,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:16:44,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:16:44,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:16:44,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:16:44,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:16:43" (1/3) ... [2020-11-29 20:16:44,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18fd970c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:16:44, skipping insertion in model container [2020-11-29 20:16:44,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:44" (2/3) ... [2020-11-29 20:16:44,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18fd970c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:16:44, skipping insertion in model container [2020-11-29 20:16:44,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:16:44" (3/3) ... [2020-11-29 20:16:44,587 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_2.i [2020-11-29 20:16:44,604 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:16:44,609 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 20:16:44,630 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 20:16:44,678 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:16:44,678 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:16:44,678 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:16:44,679 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:16:44,679 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:16:44,679 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:16:44,679 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:16:44,679 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:16:44,708 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-11-29 20:16:44,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 20:16:44,713 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:16:44,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:16:44,714 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:16:44,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:16:44,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1804966438, now seen corresponding path program 1 times [2020-11-29 20:16:44,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:16:44,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883302031] [2020-11-29 20:16:44,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:16:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:16:44,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:16:44,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883302031] [2020-11-29 20:16:44,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:16:44,932 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:16:44,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401165937] [2020-11-29 20:16:44,938 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 20:16:44,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:16:44,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 20:16:44,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:16:44,958 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2020-11-29 20:16:44,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:16:44,975 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2020-11-29 20:16:44,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 20:16:44,977 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-29 20:16:44,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:16:44,986 INFO L225 Difference]: With dead ends: 21 [2020-11-29 20:16:44,987 INFO L226 Difference]: Without dead ends: 8 [2020-11-29 20:16:44,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:16:45,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-11-29 20:16:45,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-11-29 20:16:45,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-29 20:16:45,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-11-29 20:16:45,026 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2020-11-29 20:16:45,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:16:45,027 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-11-29 20:16:45,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 20:16:45,028 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-11-29 20:16:45,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 20:16:45,028 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:16:45,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:16:45,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:16:45,029 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:16:45,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:16:45,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1806813480, now seen corresponding path program 1 times [2020-11-29 20:16:45,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:16:45,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132907811] [2020-11-29 20:16:45,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:16:45,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:16:45,057 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:16:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:16:45,105 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:16:45,137 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:16:45,138 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 20:16:45,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:16:45,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:16:45 BoogieIcfgContainer [2020-11-29 20:16:45,164 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:16:45,165 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:16:45,165 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:16:45,166 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:16:45,166 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:16:44" (3/4) ... [2020-11-29 20:16:45,172 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 20:16:45,173 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:16:45,177 INFO L168 Benchmark]: Toolchain (without parser) took 1366.70 ms. Allocated memory is still 125.8 MB. Free memory was 94.4 MB in the beginning and 69.4 MB in the end (delta: 25.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:16:45,179 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 77.6 MB. Free memory was 36.1 MB in the beginning and 36.0 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:16:45,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.17 ms. Allocated memory is still 125.8 MB. Free memory was 94.2 MB in the beginning and 102.1 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:16:45,183 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.48 ms. Allocated memory is still 125.8 MB. Free memory was 102.1 MB in the beginning and 100.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:16:45,185 INFO L168 Benchmark]: Boogie Preprocessor took 23.49 ms. Allocated memory is still 125.8 MB. Free memory was 100.8 MB in the beginning and 99.8 MB in the end (delta: 998.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:16:45,186 INFO L168 Benchmark]: RCFGBuilder took 342.89 ms. Allocated memory is still 125.8 MB. Free memory was 99.5 MB in the beginning and 89.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:16:45,188 INFO L168 Benchmark]: TraceAbstraction took 594.67 ms. Allocated memory is still 125.8 MB. Free memory was 88.6 MB in the beginning and 69.8 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:16:45,189 INFO L168 Benchmark]: Witness Printer took 7.75 ms. Allocated memory is still 125.8 MB. Free memory was 69.8 MB in the beginning and 69.4 MB in the end (delta: 420.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:16:45,194 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 77.6 MB. Free memory was 36.1 MB in the beginning and 36.0 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 339.17 ms. Allocated memory is still 125.8 MB. Free memory was 94.2 MB in the beginning and 102.1 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.48 ms. Allocated memory is still 125.8 MB. Free memory was 102.1 MB in the beginning and 100.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.49 ms. Allocated memory is still 125.8 MB. Free memory was 100.8 MB in the beginning and 99.8 MB in the end (delta: 998.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 342.89 ms. Allocated memory is still 125.8 MB. Free memory was 99.5 MB in the beginning and 89.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 594.67 ms. Allocated memory is still 125.8 MB. Free memory was 88.6 MB in the beginning and 69.8 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Witness Printer took 7.75 ms. Allocated memory is still 125.8 MB. Free memory was 69.8 MB in the beginning and 69.4 MB in the end (delta: 420.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 25. Possible FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] COND TRUE !(result <= 1.0f && result >= -1.0f) [L12] COND FALSE !(0) [L12] __assert_fail ("0", "sine_2.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:16:48,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:16:48,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:16:48,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:16:48,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:16:48,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:16:48,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:16:48,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:16:48,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:16:48,242 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:16:48,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:16:48,262 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:16:48,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:16:48,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:16:48,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:16:48,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:16:48,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:16:48,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:16:48,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:16:48,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:16:48,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:16:48,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:16:48,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:16:48,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:16:48,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:16:48,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:16:48,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:16:48,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:16:48,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:16:48,326 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:16:48,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:16:48,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:16:48,330 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:16:48,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:16:48,333 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:16:48,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:16:48,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:16:48,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:16:48,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:16:48,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:16:48,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:16:48,340 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 20:16:48,400 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:16:48,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:16:48,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:16:48,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:16:48,407 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:16:48,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:16:48,407 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:16:48,408 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:16:48,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:16:48,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:16:48,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:16:48,410 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:16:48,410 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 20:16:48,410 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 20:16:48,411 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:16:48,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:16:48,411 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:16:48,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:16:48,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:16:48,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:16:48,412 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:16:48,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:16:48,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:16:48,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:16:48,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:16:48,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:16:48,414 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 20:16:48,414 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 20:16:48,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:16:48,414 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:16:48,415 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 20:16:48,415 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8771fe52d76e2ea5bc3e8e7989f8459d27e5992c [2020-11-29 20:16:48,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:16:48,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:16:48,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:16:48,967 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:16:48,968 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:16:48,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/../../sv-benchmarks/c/floats-cdfpl/sine_2.i [2020-11-29 20:16:49,077 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/data/ef4454c66/7e89c5ab93a34c5187c78bd9a71267ef/FLAGe2e7c2dd3 [2020-11-29 20:16:49,754 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:16:49,755 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/sv-benchmarks/c/floats-cdfpl/sine_2.i [2020-11-29 20:16:49,764 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/data/ef4454c66/7e89c5ab93a34c5187c78bd9a71267ef/FLAGe2e7c2dd3 [2020-11-29 20:16:50,079 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/data/ef4454c66/7e89c5ab93a34c5187c78bd9a71267ef [2020-11-29 20:16:50,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:16:50,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:16:50,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:16:50,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:16:50,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:16:50,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:16:50" (1/1) ... [2020-11-29 20:16:50,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5002cc4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:50, skipping insertion in model container [2020-11-29 20:16:50,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:16:50" (1/1) ... [2020-11-29 20:16:50,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:16:50,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:16:50,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:16:50,337 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:16:50,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:16:50,378 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:16:50,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:50 WrapperNode [2020-11-29 20:16:50,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:16:50,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:16:50,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:16:50,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:16:50,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:50" (1/1) ... [2020-11-29 20:16:50,401 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:50" (1/1) ... [2020-11-29 20:16:50,437 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:16:50,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:16:50,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:16:50,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:16:50,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:50" (1/1) ... [2020-11-29 20:16:50,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:50" (1/1) ... [2020-11-29 20:16:50,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:50" (1/1) ... [2020-11-29 20:16:50,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:50" (1/1) ... [2020-11-29 20:16:50,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:50" (1/1) ... [2020-11-29 20:16:50,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:50" (1/1) ... [2020-11-29 20:16:50,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:50" (1/1) ... [2020-11-29 20:16:50,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:16:50,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:16:50,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:16:50,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:16:50,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/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 [2020-11-29 20:16:50,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 20:16:50,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:16:50,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:16:50,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:16:54,010 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:16:54,011 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 20:16:54,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:16:54 BoogieIcfgContainer [2020-11-29 20:16:54,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:16:54,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:16:54,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:16:54,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:16:54,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:16:50" (1/3) ... [2020-11-29 20:16:54,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a90a0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:16:54, skipping insertion in model container [2020-11-29 20:16:54,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:16:50" (2/3) ... [2020-11-29 20:16:54,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a90a0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:16:54, skipping insertion in model container [2020-11-29 20:16:54,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:16:54" (3/3) ... [2020-11-29 20:16:54,024 INFO L111 eAbstractionObserver]: Analyzing ICFG sine_2.i [2020-11-29 20:16:54,038 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:16:54,043 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 20:16:54,058 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 20:16:54,086 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:16:54,087 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:16:54,087 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:16:54,087 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:16:54,087 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:16:54,088 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:16:54,088 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:16:54,088 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:16:54,103 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-11-29 20:16:54,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 20:16:54,109 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:16:54,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:16:54,111 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:16:54,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:16:54,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1804966438, now seen corresponding path program 1 times [2020-11-29 20:16:54,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:16:54,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294616125] [2020-11-29 20:16:54,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 20:16:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:16:55,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 20:16:55,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:16:55,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:16:55,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:16:55,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:16:55,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294616125] [2020-11-29 20:16:55,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:16:55,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 20:16:55,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247259653] [2020-11-29 20:16:55,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 20:16:55,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:16:55,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 20:16:55,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:16:55,144 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2020-11-29 20:16:55,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:16:55,162 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2020-11-29 20:16:55,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 20:16:55,163 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-29 20:16:55,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:16:55,174 INFO L225 Difference]: With dead ends: 21 [2020-11-29 20:16:55,174 INFO L226 Difference]: Without dead ends: 8 [2020-11-29 20:16:55,178 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:16:55,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-11-29 20:16:55,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-11-29 20:16:55,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-29 20:16:55,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-11-29 20:16:55,216 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2020-11-29 20:16:55,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:16:55,217 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-11-29 20:16:55,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 20:16:55,217 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-11-29 20:16:55,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 20:16:55,218 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:16:55,218 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:16:55,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 20:16:55,423 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:16:55,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:16:55,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1806813480, now seen corresponding path program 1 times [2020-11-29 20:16:55,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:16:55,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1952345512] [2020-11-29 20:16:55,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 20:31:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:31:31,774 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:31:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:31:48,239 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:31:48,317 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-29 20:31:48,317 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 20:31:48,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 20:31:48,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:31:48 BoogieIcfgContainer [2020-11-29 20:31:48,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:31:48,537 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:31:48,538 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:31:48,538 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:31:48,538 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:16:54" (3/4) ... [2020-11-29 20:31:48,544 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 20:31:48,589 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5d4d8c50-00db-4049-9ae1-9e6a243897e7/bin/uautomizer/witness.graphml [2020-11-29 20:31:48,590 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:31:48,597 INFO L168 Benchmark]: Toolchain (without parser) took 898507.40 ms. Allocated memory was 62.9 MB in the beginning and 86.0 MB in the end (delta: 23.1 MB). Free memory was 43.9 MB in the beginning and 50.1 MB in the end (delta: -6.2 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:31:48,598 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 62.9 MB. Free memory is still 45.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:31:48,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.54 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 33.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:31:48,601 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.90 ms. Allocated memory is still 62.9 MB. Free memory was 33.5 MB in the beginning and 46.9 MB in the end (delta: -13.4 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:31:48,602 INFO L168 Benchmark]: Boogie Preprocessor took 74.66 ms. Allocated memory is still 62.9 MB. Free memory was 46.9 MB in the beginning and 45.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:31:48,605 INFO L168 Benchmark]: RCFGBuilder took 3500.43 ms. Allocated memory is still 62.9 MB. Free memory was 45.5 MB in the beginning and 34.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:31:48,606 INFO L168 Benchmark]: TraceAbstraction took 894520.94 ms. Allocated memory was 62.9 MB in the beginning and 86.0 MB in the end (delta: 23.1 MB). Free memory was 34.1 MB in the beginning and 51.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:31:48,607 INFO L168 Benchmark]: Witness Printer took 53.03 ms. Allocated memory is still 86.0 MB. Free memory was 51.7 MB in the beginning and 50.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:31:48,616 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 62.9 MB. Free memory is still 45.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 293.54 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 33.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.90 ms. Allocated memory is still 62.9 MB. Free memory was 33.5 MB in the beginning and 46.9 MB in the end (delta: -13.4 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.66 ms. Allocated memory is still 62.9 MB. Free memory was 46.9 MB in the beginning and 45.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3500.43 ms. Allocated memory is still 62.9 MB. Free memory was 45.5 MB in the beginning and 34.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 894520.94 ms. Allocated memory was 62.9 MB in the beginning and 86.0 MB in the end (delta: 23.1 MB). Free memory was 34.1 MB in the beginning and 51.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Witness Printer took 53.03 ms. Allocated memory is still 86.0 MB. Free memory was 51.7 MB in the beginning and 50.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L20] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L23] float x = IN; [L25] float result = x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L27] COND TRUE !(result <= 1.0f && result >= -1.0f) [L12] COND FALSE !(0) [L12] __assert_fail ("0", "sine_2.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 894.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 877.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...