./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc 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/float-newlib/double_req_bl_0970a.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 16ed93f7e94a59686881f163258e4b8f85fe8ac8 .................................................................................................................................................................................................................................................................................................................................................................... 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/float-newlib/double_req_bl_0970a.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 16ed93f7e94a59686881f163258e4b8f85fe8ac8 ..................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-10-24 23:15:08,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:15:08,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:15:09,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:15:09,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:15:09,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:15:09,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:15:09,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:15:09,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:15:09,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:15:09,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:15:09,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:15:09,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:15:09,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:15:09,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:15:09,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:15:09,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:15:09,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:15:09,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:15:09,038 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:15:09,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:15:09,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:15:09,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:15:09,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:15:09,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:15:09,048 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:15:09,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:15:09,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:15:09,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:15:09,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:15:09,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:15:09,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:15:09,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:15:09,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:15:09,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:15:09,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:15:09,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:15:09,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:15:09,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:15:09,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:15:09,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:15:09,067 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:15:09,093 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:15:09,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:15:09,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:15:09,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:15:09,096 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:15:09,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:15:09,097 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:15:09,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:15:09,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:15:09,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:15:09,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:15:09,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:15:09,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:15:09,098 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:15:09,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:15:09,099 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:15:09,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:15:09,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:15:09,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:15:09,100 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:15:09,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:15:09,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:15:09,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:15:09,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:15:09,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:15:09,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:15:09,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:15:09,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:15:09,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:15:09,102 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16ed93f7e94a59686881f163258e4b8f85fe8ac8 [2020-10-24 23:15:09,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:15:09,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:15:09,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:15:09,540 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:15:09,541 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:15:09,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2020-10-24 23:15:09,627 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34944eed0/2be109dd2ea24024bbaa01452bb5224e/FLAG2d877289b [2020-10-24 23:15:10,248 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:15:10,249 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2020-10-24 23:15:10,266 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34944eed0/2be109dd2ea24024bbaa01452bb5224e/FLAG2d877289b [2020-10-24 23:15:10,564 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34944eed0/2be109dd2ea24024bbaa01452bb5224e [2020-10-24 23:15:10,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:15:10,579 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:15:10,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:15:10,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:15:10,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:15:10,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:15:10" (1/1) ... [2020-10-24 23:15:10,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30c09a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:10, skipping insertion in model container [2020-10-24 23:15:10,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:15:10" (1/1) ... [2020-10-24 23:15:10,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:15:10,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:15:10,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:15:10,957 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:15:11,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:15:11,029 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:15:11,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11 WrapperNode [2020-10-24 23:15:11,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:15:11,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:15:11,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:15:11,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:15:11,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (1/1) ... [2020-10-24 23:15:11,054 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (1/1) ... [2020-10-24 23:15:11,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:15:11,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:15:11,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:15:11,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:15:11,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (1/1) ... [2020-10-24 23:15:11,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (1/1) ... [2020-10-24 23:15:11,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (1/1) ... [2020-10-24 23:15:11,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (1/1) ... [2020-10-24 23:15:11,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (1/1) ... [2020-10-24 23:15:11,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (1/1) ... [2020-10-24 23:15:11,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (1/1) ... [2020-10-24 23:15:11,201 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:15:11,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:15:11,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:15:11,208 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:15:11,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:15:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:15:11,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:15:11,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:15:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:15:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:15:11,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:15:11,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:15:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:15:11,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:15:12,012 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:15:12,012 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-10-24 23:15:12,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:15:12 BoogieIcfgContainer [2020-10-24 23:15:12,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:15:12,028 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:15:12,028 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:15:12,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:15:12,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:15:10" (1/3) ... [2020-10-24 23:15:12,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb39cc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:15:12, skipping insertion in model container [2020-10-24 23:15:12,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:11" (2/3) ... [2020-10-24 23:15:12,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb39cc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:15:12, skipping insertion in model container [2020-10-24 23:15:12,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:15:12" (3/3) ... [2020-10-24 23:15:12,036 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c [2020-10-24 23:15:12,054 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:15:12,061 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:15:12,075 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:15:12,102 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:15:12,102 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:15:12,102 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:15:12,103 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:15:12,103 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:15:12,103 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:15:12,103 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:15:12,103 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:15:12,120 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-10-24 23:15:12,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 23:15:12,126 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:15:12,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:15:12,127 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:15:12,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:15:12,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1392627184, now seen corresponding path program 1 times [2020-10-24 23:15:12,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:15:12,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378803361] [2020-10-24 23:15:12,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:15:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:15:12,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:15:12,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378803361] [2020-10-24 23:15:12,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:15:12,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:15:12,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610570994] [2020-10-24 23:15:12,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:15:12,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:15:12,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:15:12,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:15:12,350 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2020-10-24 23:15:12,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:15:12,376 INFO L93 Difference]: Finished difference Result 96 states and 157 transitions. [2020-10-24 23:15:12,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:15:12,378 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-10-24 23:15:12,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:15:12,390 INFO L225 Difference]: With dead ends: 96 [2020-10-24 23:15:12,390 INFO L226 Difference]: Without dead ends: 45 [2020-10-24 23:15:12,393 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 [2020-10-24 23:15:12,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-24 23:15:12,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-24 23:15:12,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-24 23:15:12,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2020-10-24 23:15:12,437 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 12 [2020-10-24 23:15:12,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:15:12,438 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2020-10-24 23:15:12,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:15:12,438 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2020-10-24 23:15:12,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 23:15:12,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:15:12,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:15:12,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:15:12,440 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:15:12,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:15:12,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1009660131, now seen corresponding path program 1 times [2020-10-24 23:15:12,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:15:12,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293683001] [2020-10-24 23:15:12,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:15:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:15:12,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:15:12,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293683001] [2020-10-24 23:15:12,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:15:12,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-24 23:15:12,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043852051] [2020-10-24 23:15:12,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-24 23:15:12,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:15:12,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-24 23:15:12,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 23:15:12,535 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand 3 states. [2020-10-24 23:15:12,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:15:12,566 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2020-10-24 23:15:12,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 23:15:12,567 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-24 23:15:12,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:15:12,568 INFO L225 Difference]: With dead ends: 83 [2020-10-24 23:15:12,568 INFO L226 Difference]: Without dead ends: 45 [2020-10-24 23:15:12,570 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 23:15:12,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-24 23:15:12,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-24 23:15:12,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-24 23:15:12,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2020-10-24 23:15:12,577 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 13 [2020-10-24 23:15:12,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:15:12,578 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2020-10-24 23:15:12,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-24 23:15:12,578 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2020-10-24 23:15:12,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-24 23:15:12,579 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:15:12,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:15:12,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:15:12,579 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:15:12,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:15:12,580 INFO L82 PathProgramCache]: Analyzing trace with hash 34829304, now seen corresponding path program 1 times [2020-10-24 23:15:12,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:15:12,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788006873] [2020-10-24 23:15:12,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:15:12,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:15:12,686 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:15:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:15:12,785 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:15:12,823 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:15:12,824 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:15:12,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 23:15:12,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:15:12 BoogieIcfgContainer [2020-10-24 23:15:12,878 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:15:12,879 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:15:12,879 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:15:12,879 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:15:12,880 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:15:12" (3/4) ... [2020-10-24 23:15:12,884 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:15:12,884 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:15:12,887 INFO L168 Benchmark]: Toolchain (without parser) took 2312.67 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.2 MB in the beginning and 32.8 MB in the end (delta: -1.7 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2020-10-24 23:15:12,888 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 41.9 MB. Free memory was 21.4 MB in the beginning and 21.4 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:15:12,889 INFO L168 Benchmark]: CACSL2BoogieTranslator took 448.69 ms. Allocated memory is still 54.5 MB. Free memory was 30.5 MB in the beginning and 30.6 MB in the end (delta: -92.6 kB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:15:12,889 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.02 ms. Allocated memory is still 54.5 MB. Free memory was 30.6 MB in the beginning and 28.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:15:12,890 INFO L168 Benchmark]: Boogie Preprocessor took 95.46 ms. Allocated memory is still 54.5 MB. Free memory was 28.1 MB in the beginning and 26.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:15:12,891 INFO L168 Benchmark]: RCFGBuilder took 821.83 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 25.9 MB in the beginning and 49.0 MB in the end (delta: -23.1 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:15:12,892 INFO L168 Benchmark]: TraceAbstraction took 850.42 ms. Allocated memory is still 67.1 MB. Free memory was 48.6 MB in the beginning and 33.2 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2020-10-24 23:15:12,893 INFO L168 Benchmark]: Witness Printer took 5.30 ms. Allocated memory is still 67.1 MB. Free memory was 33.2 MB in the beginning and 32.8 MB in the end (delta: 411.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:15:12,899 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 41.9 MB. Free memory was 21.4 MB in the beginning and 21.4 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 448.69 ms. Allocated memory is still 54.5 MB. Free memory was 30.5 MB in the beginning and 30.6 MB in the end (delta: -92.6 kB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.02 ms. Allocated memory is still 54.5 MB. Free memory was 30.6 MB in the beginning and 28.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 95.46 ms. Allocated memory is still 54.5 MB. Free memory was 28.1 MB in the beginning and 26.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 821.83 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 25.9 MB in the beginning and 49.0 MB in the end (delta: -23.1 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 850.42 ms. Allocated memory is still 67.1 MB. Free memory was 48.6 MB in the beginning and 33.2 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * Witness Printer took 5.30 ms. Allocated memory is still 67.1 MB. Free memory was 33.2 MB in the beginning and 32.8 MB in the end (delta: 411.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 163, overapproximation of bitwiseAnd at line 172, overapproximation of someBinaryArithmeticDOUBLEoperation at line 147. Possible FailurePath: [L19-L28] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L30] static const double zero = 0.0; [L113-L116] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L118] static const double zero_log10 = 0.0; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L182] double x = __VERIFIER_nondet_double(); [L184] x < 0 && isfinite_double(x) [L166] __int32_t hx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L168] ieee_double_shape_type gh_u; [L169] gh_u.value = (x) [L170] EXPR gh_u.parts.msw [L170] (hx) = gh_u.parts.msw [L172] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L184] x < 0 && isfinite_double(x) VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L184] COND TRUE x < 0 && isfinite_double(x) [L121] double y, z; [L122] __int32_t i, k, hx; [L123] __uint32_t lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L126] ieee_double_shape_type ew_u; [L127] ew_u.value = (x) [L128] EXPR ew_u.parts.msw [L128] (hx) = ew_u.parts.msw [L129] EXPR ew_u.parts.lsw [L129] (lx) = ew_u.parts.lsw [L132] k = 0 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L133] COND FALSE !(hx < 0x00100000) VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L146] COND TRUE hx >= 0x7ff00000 [L147] return x + x; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L186] double res = __ieee754_log10(x); [L163] return x != x; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L189] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_0970a.c", 3, "reach_error") VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 125 SDtfs, 0 SDslu, 55 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 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 [2020-10-24 23:15:15,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:15:15,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:15:15,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:15:15,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:15:15,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:15:15,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:15:15,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:15:15,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:15:15,633 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:15:15,634 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:15:15,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:15:15,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:15:15,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:15:15,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:15:15,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:15:15,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:15:15,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:15:15,646 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:15:15,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:15:15,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:15:15,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:15:15,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:15:15,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:15:15,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:15:15,659 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:15:15,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:15:15,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:15:15,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:15:15,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:15:15,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:15:15,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:15:15,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:15:15,666 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:15:15,671 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:15:15,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:15:15,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:15:15,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:15:15,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:15:15,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:15:15,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:15:15,677 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:15:15,706 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:15:15,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:15:15,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:15:15,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:15:15,712 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:15:15,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:15:15,713 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:15:15,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:15:15,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:15:15,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:15:15,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:15:15,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:15:15,714 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:15:15,714 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:15:15,715 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:15:15,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:15:15,717 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:15:15,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:15:15,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:15:15,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:15:15,718 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:15:15,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:15:15,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:15:15,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:15:15,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:15:15,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:15:15,719 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:15:15,719 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:15:15,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:15:15,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:15:15,720 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:15:15,721 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16ed93f7e94a59686881f163258e4b8f85fe8ac8 [2020-10-24 23:15:16,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:15:16,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:15:16,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:15:16,253 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:15:16,254 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:15:16,255 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2020-10-24 23:15:16,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62fdb47af/bd5d5a792b4c4b5cbc55ec7270530002/FLAG789f05879 [2020-10-24 23:15:17,089 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:15:17,090 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0970a.c [2020-10-24 23:15:17,102 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62fdb47af/bd5d5a792b4c4b5cbc55ec7270530002/FLAG789f05879 [2020-10-24 23:15:17,446 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62fdb47af/bd5d5a792b4c4b5cbc55ec7270530002 [2020-10-24 23:15:17,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:15:17,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:15:17,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:15:17,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:15:17,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:15:17,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:15:17" (1/1) ... [2020-10-24 23:15:17,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55b2b1e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:17, skipping insertion in model container [2020-10-24 23:15:17,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:15:17" (1/1) ... [2020-10-24 23:15:17,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:15:17,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:15:17,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:15:17,852 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:15:17,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:15:17,947 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:15:17,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:17 WrapperNode [2020-10-24 23:15:17,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:15:17,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:15:17,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:15:17,950 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:15:17,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:17" (1/1) ... [2020-10-24 23:15:17,979 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:17" (1/1) ... [2020-10-24 23:15:18,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:15:18,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:15:18,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:15:18,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:15:18,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:17" (1/1) ... [2020-10-24 23:15:18,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:17" (1/1) ... [2020-10-24 23:15:18,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:17" (1/1) ... [2020-10-24 23:15:18,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:17" (1/1) ... [2020-10-24 23:15:18,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:17" (1/1) ... [2020-10-24 23:15:18,061 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:17" (1/1) ... [2020-10-24 23:15:18,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:17" (1/1) ... [2020-10-24 23:15:18,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:15:18,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:15:18,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:15:18,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:15:18,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:15:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-24 23:15:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-24 23:15:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:15:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:15:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:15:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:15:18,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:15:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:15:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:15:50,034 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:15:50,035 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-10-24 23:15:50,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:15:50 BoogieIcfgContainer [2020-10-24 23:15:50,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:15:50,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:15:50,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:15:50,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:15:50,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:15:17" (1/3) ... [2020-10-24 23:15:50,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5afb9d15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:15:50, skipping insertion in model container [2020-10-24 23:15:50,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:15:17" (2/3) ... [2020-10-24 23:15:50,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5afb9d15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:15:50, skipping insertion in model container [2020-10-24 23:15:50,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:15:50" (3/3) ... [2020-10-24 23:15:50,053 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970a.c [2020-10-24 23:15:50,068 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:15:50,075 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:15:50,092 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:15:50,137 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:15:50,138 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:15:50,138 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:15:50,138 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:15:50,138 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:15:50,139 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:15:50,139 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:15:50,139 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:15:50,159 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-10-24 23:15:50,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 23:15:50,169 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:15:50,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:15:50,171 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:15:50,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:15:50,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1392627184, now seen corresponding path program 1 times [2020-10-24 23:15:50,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:15:50,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2013082727] [2020-10-24 23:15:50,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:15:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:15:50,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:15:50,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:15:50,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:15:50,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:15:50,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:15:50,492 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2013082727] [2020-10-24 23:15:50,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:15:50,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:15:50,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125508708] [2020-10-24 23:15:50,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:15:50,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:15:50,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:15:50,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:15:50,524 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2020-10-24 23:15:50,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:15:50,565 INFO L93 Difference]: Finished difference Result 96 states and 157 transitions. [2020-10-24 23:15:50,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:15:50,567 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-10-24 23:15:50,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:15:50,580 INFO L225 Difference]: With dead ends: 96 [2020-10-24 23:15:50,580 INFO L226 Difference]: Without dead ends: 45 [2020-10-24 23:15:50,583 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:15:50,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-24 23:15:50,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-24 23:15:50,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-24 23:15:50,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2020-10-24 23:15:50,620 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 12 [2020-10-24 23:15:50,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:15:50,621 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2020-10-24 23:15:50,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:15:50,621 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2020-10-24 23:15:50,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 23:15:50,622 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:15:50,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:15:50,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:15:50,838 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:15:50,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:15:50,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1009660131, now seen corresponding path program 1 times [2020-10-24 23:15:50,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:15:50,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017289839] [2020-10-24 23:15:50,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:15:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:15:51,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 23:15:51,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:15:51,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:15:51,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:15:51,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:15:51,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017289839] [2020-10-24 23:15:51,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:15:51,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-24 23:15:51,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95392534] [2020-10-24 23:15:51,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-24 23:15:51,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:15:51,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-24 23:15:51,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 23:15:51,206 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand 3 states. [2020-10-24 23:15:51,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:15:51,255 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2020-10-24 23:15:51,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 23:15:51,256 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-24 23:15:51,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:15:51,259 INFO L225 Difference]: With dead ends: 83 [2020-10-24 23:15:51,260 INFO L226 Difference]: Without dead ends: 45 [2020-10-24 23:15:51,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 23:15:51,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-24 23:15:51,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-24 23:15:51,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-24 23:15:51,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2020-10-24 23:15:51,279 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 13 [2020-10-24 23:15:51,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:15:51,280 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2020-10-24 23:15:51,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-24 23:15:51,281 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2020-10-24 23:15:51,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-24 23:15:51,284 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:15:51,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:15:51,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:15:51,498 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:15:51,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:15:51,500 INFO L82 PathProgramCache]: Analyzing trace with hash 34829304, now seen corresponding path program 1 times [2020-10-24 23:15:51,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:15:51,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103312927] [2020-10-24 23:15:51,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-24 23:15:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:15:51,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-24 23:15:51,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:15:51,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:15:51,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:15:52,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:15:52,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [103312927] [2020-10-24 23:15:52,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:15:52,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-10-24 23:15:52,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064830715] [2020-10-24 23:15:52,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 23:15:52,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:15:52,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 23:15:52,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-24 23:15:52,235 INFO L87 Difference]: Start difference. First operand 45 states and 59 transitions. Second operand 10 states. [2020-10-24 23:15:58,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:15:58,426 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2020-10-24 23:15:58,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 23:15:58,477 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-10-24 23:15:58,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:15:58,478 INFO L225 Difference]: With dead ends: 50 [2020-10-24 23:15:58,478 INFO L226 Difference]: Without dead ends: 19 [2020-10-24 23:15:58,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-24 23:15:58,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-24 23:15:58,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-24 23:15:58,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-24 23:15:58,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-10-24 23:15:58,483 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2020-10-24 23:15:58,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:15:58,484 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-10-24 23:15:58,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 23:15:58,484 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-10-24 23:15:58,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-24 23:15:58,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:15:58,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:15:58,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 23:15:58,686 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:15:58,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:15:58,687 INFO L82 PathProgramCache]: Analyzing trace with hash -675358345, now seen corresponding path program 1 times [2020-10-24 23:15:58,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:15:58,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514280843] [2020-10-24 23:15:58,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-24 23:15:59,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:15:59,901 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:16:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:16:00,947 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:16:01,104 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-24 23:16:01,104 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:16:01,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 23:16:01,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:16:01 BoogieIcfgContainer [2020-10-24 23:16:01,383 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:16:01,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:16:01,384 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:16:01,384 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:16:01,384 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:15:50" (3/4) ... [2020-10-24 23:16:01,387 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-24 23:16:01,510 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:16:01,510 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:16:01,515 INFO L168 Benchmark]: Toolchain (without parser) took 44060.11 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.9 MB in the beginning and 23.8 MB in the end (delta: -2.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:16:01,516 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 35.7 MB. Free memory was 21.8 MB in the beginning and 21.8 MB in the end (delta: 14.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:16:01,517 INFO L168 Benchmark]: CACSL2BoogieTranslator took 472.29 ms. Allocated memory is still 44.0 MB. Free memory was 29.6 MB in the beginning and 24.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2020-10-24 23:16:01,517 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.51 ms. Allocated memory is still 44.0 MB. Free memory was 24.7 MB in the beginning and 22.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:16:01,517 INFO L168 Benchmark]: Boogie Preprocessor took 59.90 ms. Allocated memory is still 44.0 MB. Free memory was 22.1 MB in the beginning and 27.4 MB in the end (delta: -5.3 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:16:01,521 INFO L168 Benchmark]: RCFGBuilder took 31961.61 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 27.3 MB in the beginning and 27.7 MB in the end (delta: -485.3 kB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2020-10-24 23:16:01,522 INFO L168 Benchmark]: TraceAbstraction took 11341.49 ms. Allocated memory is still 54.5 MB. Free memory was 27.2 MB in the beginning and 29.0 MB in the end (delta: -1.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2020-10-24 23:16:01,522 INFO L168 Benchmark]: Witness Printer took 126.73 ms. Allocated memory is still 54.5 MB. Free memory was 28.6 MB in the beginning and 24.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:16:01,528 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 35.7 MB. Free memory was 21.8 MB in the beginning and 21.8 MB in the end (delta: 14.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 472.29 ms. Allocated memory is still 44.0 MB. Free memory was 29.6 MB in the beginning and 24.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.51 ms. Allocated memory is still 44.0 MB. Free memory was 24.7 MB in the beginning and 22.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.90 ms. Allocated memory is still 44.0 MB. Free memory was 22.1 MB in the beginning and 27.4 MB in the end (delta: -5.3 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. * RCFGBuilder took 31961.61 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 27.3 MB in the beginning and 27.7 MB in the end (delta: -485.3 kB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11341.49 ms. Allocated memory is still 54.5 MB. Free memory was 27.2 MB in the beginning and 29.0 MB in the end (delta: -1.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * Witness Printer took 126.73 ms. Allocated memory is still 54.5 MB. Free memory was 28.6 MB in the beginning and 24.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19-L28] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L30] static const double zero = 0.0; [L113-L116] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L118] static const double zero_log10 = 0.0; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L182] double x = __VERIFIER_nondet_double(); [L184] x < 0 && isfinite_double(x) [L166] __int32_t hx; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L168] ieee_double_shape_type gh_u; [L169] gh_u.value = (x) [L170] EXPR gh_u.parts.msw [L170] (hx) = gh_u.parts.msw [L172] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L184] x < 0 && isfinite_double(x) VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L184] COND TRUE x < 0 && isfinite_double(x) [L121] double y, z; [L122] __int32_t i, k, hx; [L123] __uint32_t lx; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L126] ieee_double_shape_type ew_u; [L127] ew_u.value = (x) [L128] EXPR ew_u.parts.msw [L128] (hx) = ew_u.parts.msw [L129] EXPR ew_u.parts.lsw [L129] (lx) = ew_u.parts.lsw [L132] k = 0 VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L133] COND TRUE hx < 0x00100000 VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L134] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L135] return -two54_log10 / zero_log10; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L186] double res = __ieee754_log10(x); [L163] return x != x; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L189] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_0970a.c", 3, "reach_error") VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 137 SDtfs, 74 SDslu, 80 SDs, 0 SdLazy, 24 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 78 ConstructedInterpolants, 17 QuantifiedInterpolants, 4426 SizeOfPredicates, 8 NumberOfNonLiveVariables, 210 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...