./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0981.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 096883e9 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_0981.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 66a7c6e3a9deb166a40d6b5205de6d7261b36e2d ............................................................................................................................................................................................................................................................................................................................... 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_0981.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 66a7c6e3a9deb166a40d6b5205de6d7261b36e2d .......................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-096883e [2020-12-01 23:19:40,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 23:19:40,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 23:19:40,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 23:19:40,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 23:19:40,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 23:19:40,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 23:19:40,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 23:19:40,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 23:19:40,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 23:19:40,592 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 23:19:40,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 23:19:40,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 23:19:40,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 23:19:40,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 23:19:40,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 23:19:40,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 23:19:40,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 23:19:40,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 23:19:40,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 23:19:40,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 23:19:40,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 23:19:40,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 23:19:40,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 23:19:40,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 23:19:40,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 23:19:40,640 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 23:19:40,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 23:19:40,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 23:19:40,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 23:19:40,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 23:19:40,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 23:19:40,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 23:19:40,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 23:19:40,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 23:19:40,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 23:19:40,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 23:19:40,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 23:19:40,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 23:19:40,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 23:19:40,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 23:19:40,656 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 23:19:40,702 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 23:19:40,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 23:19:40,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 23:19:40,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 23:19:40,704 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 23:19:40,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 23:19:40,705 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 23:19:40,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 23:19:40,705 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 23:19:40,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 23:19:40,706 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 23:19:40,706 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 23:19:40,706 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 23:19:40,706 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 23:19:40,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 23:19:40,707 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 23:19:40,707 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 23:19:40,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 23:19:40,708 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 23:19:40,708 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 23:19:40,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 23:19:40,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:19:40,709 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 23:19:40,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 23:19:40,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 23:19:40,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 23:19:40,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 23:19:40,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 23:19:40,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 23:19:40,710 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66a7c6e3a9deb166a40d6b5205de6d7261b36e2d [2020-12-01 23:19:41,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 23:19:41,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 23:19:41,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 23:19:41,110 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 23:19:41,111 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 23:19:41,112 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2020-12-01 23:19:41,195 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c36bb9408/f715dc2e26144e52853c04f18d076c6c/FLAG62f0419e1 [2020-12-01 23:19:41,895 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 23:19:41,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2020-12-01 23:19:41,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c36bb9408/f715dc2e26144e52853c04f18d076c6c/FLAG62f0419e1 [2020-12-01 23:19:42,214 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c36bb9408/f715dc2e26144e52853c04f18d076c6c [2020-12-01 23:19:42,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 23:19:42,225 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 23:19:42,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 23:19:42,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 23:19:42,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 23:19:42,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:19:42" (1/1) ... [2020-12-01 23:19:42,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c9d8798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:42, skipping insertion in model container [2020-12-01 23:19:42,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:19:42" (1/1) ... [2020-12-01 23:19:42,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 23:19:42,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 23:19:42,528 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0981.c[4783,4796] [2020-12-01 23:19:42,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:19:42,557 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 23:19:42,670 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0981.c[4783,4796] [2020-12-01 23:19:42,672 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:19:42,694 INFO L208 MainTranslator]: Completed translation [2020-12-01 23:19:42,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:42 WrapperNode [2020-12-01 23:19:42,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 23:19:42,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 23:19:42,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 23:19:42,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 23:19:42,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:42" (1/1) ... [2020-12-01 23:19:42,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:42" (1/1) ... [2020-12-01 23:19:42,758 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 23:19:42,759 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 23:19:42,759 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 23:19:42,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 23:19:42,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:42" (1/1) ... [2020-12-01 23:19:42,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:42" (1/1) ... [2020-12-01 23:19:42,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:42" (1/1) ... [2020-12-01 23:19:42,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:42" (1/1) ... [2020-12-01 23:19:42,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:42" (1/1) ... [2020-12-01 23:19:42,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:42" (1/1) ... [2020-12-01 23:19:42,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:42" (1/1) ... [2020-12-01 23:19:42,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 23:19:42,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 23:19:42,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 23:19:42,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 23:19:42,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:42" (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 [2020-12-01 23:19:42,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 23:19:42,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 23:19:42,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 23:19:42,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 23:19:42,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-01 23:19:42,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 23:19:42,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 23:19:42,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 23:19:42,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 23:19:43,634 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 23:19:43,634 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-01 23:19:43,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:19:43 BoogieIcfgContainer [2020-12-01 23:19:43,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 23:19:43,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 23:19:43,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 23:19:43,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 23:19:43,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:19:42" (1/3) ... [2020-12-01 23:19:43,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166a05b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:19:43, skipping insertion in model container [2020-12-01 23:19:43,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:42" (2/3) ... [2020-12-01 23:19:43,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@166a05b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:19:43, skipping insertion in model container [2020-12-01 23:19:43,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:19:43" (3/3) ... [2020-12-01 23:19:43,645 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0981.c [2020-12-01 23:19:43,660 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 23:19:43,664 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 23:19:43,676 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 23:19:43,702 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 23:19:43,702 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 23:19:43,702 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 23:19:43,702 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 23:19:43,703 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 23:19:43,703 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 23:19:43,703 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 23:19:43,703 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 23:19:43,719 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-12-01 23:19:43,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 23:19:43,725 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:19:43,726 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:19:43,726 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:19:43,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:19:43,732 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2020-12-01 23:19:43,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 23:19:43,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791263671] [2020-12-01 23:19:43,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 23:19:43,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:19:43,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:19:43,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791263671] [2020-12-01 23:19:43,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:19:43,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 23:19:43,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109035062] [2020-12-01 23:19:43,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 23:19:43,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 23:19:43,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 23:19:43,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:19:43,952 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-12-01 23:19:43,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:19:43,977 INFO L93 Difference]: Finished difference Result 88 states and 146 transitions. [2020-12-01 23:19:43,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 23:19:43,979 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-12-01 23:19:43,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:19:43,989 INFO L225 Difference]: With dead ends: 88 [2020-12-01 23:19:43,990 INFO L226 Difference]: Without dead ends: 42 [2020-12-01 23:19:43,993 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 [2020-12-01 23:19:44,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-01 23:19:44,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-12-01 23:19:44,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-01 23:19:44,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2020-12-01 23:19:44,033 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2020-12-01 23:19:44,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:19:44,033 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2020-12-01 23:19:44,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 23:19:44,034 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-12-01 23:19:44,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 23:19:44,034 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:19:44,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:19:44,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 23:19:44,035 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:19:44,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:19:44,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2020-12-01 23:19:44,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 23:19:44,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619333415] [2020-12-01 23:19:44,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 23:19:44,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:19:44,149 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:19:44,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:19:44,258 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:19:44,291 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 23:19:44,292 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 23:19:44,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 23:19:44,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:19:44 BoogieIcfgContainer [2020-12-01 23:19:44,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 23:19:44,341 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 23:19:44,341 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 23:19:44,341 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 23:19:44,342 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:19:43" (3/4) ... [2020-12-01 23:19:44,346 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 23:19:44,346 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 23:19:44,349 INFO L168 Benchmark]: Toolchain (without parser) took 2123.47 ms. Allocated memory was 44.0 MB in the beginning and 67.1 MB in the end (delta: 23.1 MB). Free memory was 21.6 MB in the beginning and 42.3 MB in the end (delta: -20.7 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:44,350 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 44.0 MB. Free memory was 31.4 MB in the beginning and 31.3 MB in the end (delta: 40.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:19:44,351 INFO L168 Benchmark]: CACSL2BoogieTranslator took 465.34 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.5 MB in the beginning and 37.2 MB in the end (delta: -15.8 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:44,352 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.00 ms. Allocated memory is still 54.5 MB. Free memory was 37.2 MB in the beginning and 34.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:44,353 INFO L168 Benchmark]: Boogie Preprocessor took 69.04 ms. Allocated memory is still 54.5 MB. Free memory was 34.7 MB in the beginning and 32.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:44,354 INFO L168 Benchmark]: RCFGBuilder took 804.50 ms. Allocated memory is still 54.5 MB. Free memory was 32.5 MB in the beginning and 29.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:44,355 INFO L168 Benchmark]: TraceAbstraction took 702.36 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 28.9 MB in the beginning and 42.6 MB in the end (delta: -13.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:19:44,358 INFO L168 Benchmark]: Witness Printer took 5.39 ms. Allocated memory is still 67.1 MB. Free memory was 42.6 MB in the beginning and 42.3 MB in the end (delta: 305.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:19:44,367 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 44.0 MB. Free memory was 31.4 MB in the beginning and 31.3 MB in the end (delta: 40.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 465.34 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.5 MB in the beginning and 37.2 MB in the end (delta: -15.8 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.00 ms. Allocated memory is still 54.5 MB. Free memory was 37.2 MB in the beginning and 34.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.04 ms. Allocated memory is still 54.5 MB. Free memory was 34.7 MB in the beginning and 32.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 804.50 ms. Allocated memory is still 54.5 MB. Free memory was 32.5 MB in the beginning and 29.2 MB in the end (delta: 3.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 702.36 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 28.9 MB in the beginning and 42.6 MB in the end (delta: -13.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. * Witness Printer took 5.39 ms. Allocated memory is still 67.1 MB. Free memory was 42.6 MB in the beginning and 42.3 MB in the end (delta: 305.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 188]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 170, overapproximation of someBinaryArithmeticDOUBLEoperation at line 133, overapproximation of bitwiseAnd at line 169. Possible FailurePath: [L17-L26] 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; [L28] static const double zero = 0.0; [L111-L114] 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; [L116] 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] [L183] double x = 1.0 / 0.0; [L119] double y, z; [L120] __int32_t i, k, hx; [L121] __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] [L124] ieee_double_shape_type ew_u; [L125] ew_u.value = (x) [L126] EXPR ew_u.parts.msw [L126] (hx) = ew_u.parts.msw [L127] EXPR ew_u.parts.lsw [L127] (lx) = ew_u.parts.lsw [L130] 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] [L131] COND TRUE 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] [L132] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L133] return -two54_log10 / zero_log10; 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] double res = __ieee754_log10(x); [L162] __int32_t hx, 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] [L164] ieee_double_shape_type ew_u; [L165] ew_u.value = (x) [L166] EXPR ew_u.parts.msw [L166] (hx) = ew_u.parts.msw [L167] EXPR ew_u.parts.lsw [L167] (lx) = ew_u.parts.lsw [L169] hx &= 0x7fffffff [L170] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L171] hx = 0x7ff00000 - hx [L172] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 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] [L187] COND TRUE !isinf_double(res) [L188] 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, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-096883e [2020-12-01 23:19:46,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 23:19:46,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 23:19:46,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 23:19:46,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 23:19:46,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 23:19:46,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 23:19:46,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 23:19:46,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 23:19:46,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 23:19:46,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 23:19:46,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 23:19:46,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 23:19:46,870 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 23:19:46,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 23:19:46,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 23:19:46,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 23:19:46,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 23:19:46,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 23:19:46,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 23:19:46,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 23:19:46,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 23:19:46,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 23:19:46,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 23:19:46,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 23:19:46,900 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 23:19:46,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 23:19:46,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 23:19:46,907 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 23:19:46,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 23:19:46,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 23:19:46,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 23:19:46,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 23:19:46,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 23:19:46,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 23:19:46,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 23:19:46,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 23:19:46,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 23:19:46,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 23:19:46,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 23:19:46,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 23:19:46,921 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 23:19:46,954 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 23:19:46,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 23:19:46,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 23:19:46,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 23:19:46,960 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 23:19:46,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 23:19:46,961 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 23:19:46,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 23:19:46,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 23:19:46,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 23:19:46,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 23:19:46,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 23:19:46,962 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 23:19:46,963 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 23:19:46,963 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 23:19:46,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 23:19:46,964 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 23:19:46,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 23:19:46,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 23:19:46,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 23:19:46,965 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 23:19:46,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 23:19:46,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:19:46,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 23:19:46,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 23:19:46,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 23:19:46,967 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 23:19:46,967 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 23:19:46,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 23:19:46,968 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 23:19:46,968 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 23:19:46,969 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66a7c6e3a9deb166a40d6b5205de6d7261b36e2d [2020-12-01 23:19:47,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 23:19:47,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 23:19:47,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 23:19:47,401 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 23:19:47,402 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 23:19:47,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2020-12-01 23:19:47,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac2e5abdf/8d741355c105427fb471dc4db3177ff5/FLAG59525c190 [2020-12-01 23:19:48,070 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 23:19:48,071 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2020-12-01 23:19:48,081 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac2e5abdf/8d741355c105427fb471dc4db3177ff5/FLAG59525c190 [2020-12-01 23:19:48,434 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac2e5abdf/8d741355c105427fb471dc4db3177ff5 [2020-12-01 23:19:48,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 23:19:48,468 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 23:19:48,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 23:19:48,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 23:19:48,480 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 23:19:48,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:19:48" (1/1) ... [2020-12-01 23:19:48,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d0f27ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:48, skipping insertion in model container [2020-12-01 23:19:48,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:19:48" (1/1) ... [2020-12-01 23:19:48,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 23:19:48,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 23:19:48,781 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0981.c[4783,4796] [2020-12-01 23:19:48,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:19:48,805 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 23:19:48,878 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0981.c[4783,4796] [2020-12-01 23:19:48,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:19:48,917 INFO L208 MainTranslator]: Completed translation [2020-12-01 23:19:48,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:48 WrapperNode [2020-12-01 23:19:48,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 23:19:48,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 23:19:48,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 23:19:48,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 23:19:48,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:48" (1/1) ... [2020-12-01 23:19:48,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:48" (1/1) ... [2020-12-01 23:19:48,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 23:19:48,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 23:19:48,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 23:19:48,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 23:19:48,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:48" (1/1) ... [2020-12-01 23:19:48,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:48" (1/1) ... [2020-12-01 23:19:49,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:48" (1/1) ... [2020-12-01 23:19:49,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:48" (1/1) ... [2020-12-01 23:19:49,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:48" (1/1) ... [2020-12-01 23:19:49,027 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:48" (1/1) ... [2020-12-01 23:19:49,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:48" (1/1) ... [2020-12-01 23:19:49,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 23:19:49,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 23:19:49,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 23:19:49,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 23:19:49,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:48" (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 [2020-12-01 23:19:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-01 23:19:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-01 23:19:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 23:19:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 23:19:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 23:19:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 23:19:49,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 23:19:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 23:19:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 23:20:24,973 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 23:20:24,974 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-01 23:20:24,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:20:24 BoogieIcfgContainer [2020-12-01 23:20:24,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 23:20:24,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 23:20:24,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 23:20:24,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 23:20:24,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:19:48" (1/3) ... [2020-12-01 23:20:24,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fba54c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:20:24, skipping insertion in model container [2020-12-01 23:20:24,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:19:48" (2/3) ... [2020-12-01 23:20:24,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fba54c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:20:24, skipping insertion in model container [2020-12-01 23:20:24,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:20:24" (3/3) ... [2020-12-01 23:20:24,983 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0981.c [2020-12-01 23:20:24,997 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 23:20:25,002 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 23:20:25,011 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 23:20:25,035 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 23:20:25,036 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 23:20:25,036 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 23:20:25,036 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 23:20:25,036 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 23:20:25,036 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 23:20:25,036 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 23:20:25,036 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 23:20:25,050 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-12-01 23:20:25,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 23:20:25,056 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:20:25,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:20:25,057 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:20:25,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:20:25,063 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2020-12-01 23:20:25,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:20:25,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [846059753] [2020-12-01 23:20:25,078 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 [2020-12-01 23:20:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:20:26,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 23:20:26,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:20:26,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:20:26,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:20:26,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:20:26,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [846059753] [2020-12-01 23:20:26,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:20:26,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 23:20:26,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069202586] [2020-12-01 23:20:26,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 23:20:26,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:20:26,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 23:20:26,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:20:26,268 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-12-01 23:20:26,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:20:26,290 INFO L93 Difference]: Finished difference Result 88 states and 146 transitions. [2020-12-01 23:20:26,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 23:20:26,291 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-12-01 23:20:26,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:20:26,307 INFO L225 Difference]: With dead ends: 88 [2020-12-01 23:20:26,307 INFO L226 Difference]: Without dead ends: 42 [2020-12-01 23:20:26,310 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 [2020-12-01 23:20:26,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-12-01 23:20:26,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-12-01 23:20:26,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-12-01 23:20:26,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2020-12-01 23:20:26,347 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2020-12-01 23:20:26,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:20:26,347 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2020-12-01 23:20:26,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 23:20:26,347 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-12-01 23:20:26,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 23:20:26,348 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:20:26,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:20:26,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 23:20:26,555 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:20:26,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:20:26,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2020-12-01 23:20:26,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:20:26,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [908989272] [2020-12-01 23:20:26,558 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 [2020-12-01 23:20:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:20:27,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 23:20:27,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:20:27,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:20:27,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:20:28,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:20:28,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [908989272] [2020-12-01 23:20:28,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:20:28,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-12-01 23:20:28,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062286144] [2020-12-01 23:20:28,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 23:20:28,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:20:28,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 23:20:28,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-01 23:20:28,441 INFO L87 Difference]: Start difference. First operand 42 states and 56 transitions. Second operand 6 states. [2020-12-01 23:20:28,686 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-01 23:20:28,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:20:28,854 INFO L93 Difference]: Finished difference Result 51 states and 65 transitions. [2020-12-01 23:20:28,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 23:20:28,861 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-01 23:20:28,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:20:28,862 INFO L225 Difference]: With dead ends: 51 [2020-12-01 23:20:28,862 INFO L226 Difference]: Without dead ends: 15 [2020-12-01 23:20:28,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-01 23:20:28,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-12-01 23:20:28,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-12-01 23:20:28,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-12-01 23:20:28,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-12-01 23:20:28,867 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2020-12-01 23:20:28,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:20:28,867 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-12-01 23:20:28,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 23:20:28,868 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-12-01 23:20:28,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 23:20:28,868 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:20:28,868 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:20:29,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 23:20:29,082 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:20:29,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:20:29,084 INFO L82 PathProgramCache]: Analyzing trace with hash 2124356858, now seen corresponding path program 1 times [2020-12-01 23:20:29,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:20:29,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898690820] [2020-12-01 23:20:29,085 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 [2020-12-01 23:20:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:20:29,377 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:20:29,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:20:29,584 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:20:29,667 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-12-01 23:20:29,667 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 23:20:29,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 23:20:29,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:20:29 BoogieIcfgContainer [2020-12-01 23:20:29,965 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 23:20:29,966 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 23:20:29,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 23:20:29,966 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 23:20:29,967 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:20:24" (3/4) ... [2020-12-01 23:20:29,969 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 23:20:30,098 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-01 23:20:30,102 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 23:20:30,104 INFO L168 Benchmark]: Toolchain (without parser) took 41635.63 ms. Allocated memory was 44.0 MB in the beginning and 58.7 MB in the end (delta: 14.7 MB). Free memory was 29.6 MB in the beginning and 19.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:30,107 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 44.0 MB. Free memory was 29.0 MB in the beginning and 29.0 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:20:30,108 INFO L168 Benchmark]: CACSL2BoogieTranslator took 446.11 ms. Allocated memory was 44.0 MB in the beginning and 58.7 MB in the end (delta: 14.7 MB). Free memory was 29.4 MB in the beginning and 39.1 MB in the end (delta: -9.7 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:30,108 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.52 ms. Allocated memory is still 58.7 MB. Free memory was 39.1 MB in the beginning and 36.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:30,109 INFO L168 Benchmark]: Boogie Preprocessor took 53.87 ms. Allocated memory is still 58.7 MB. Free memory was 36.6 MB in the beginning and 34.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:30,110 INFO L168 Benchmark]: RCFGBuilder took 35937.07 ms. Allocated memory is still 58.7 MB. Free memory was 34.3 MB in the beginning and 31.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:30,111 INFO L168 Benchmark]: TraceAbstraction took 4987.35 ms. Allocated memory is still 58.7 MB. Free memory was 31.2 MB in the beginning and 23.9 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:30,113 INFO L168 Benchmark]: Witness Printer took 136.93 ms. Allocated memory is still 58.7 MB. Free memory was 23.9 MB in the beginning and 19.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:30,116 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 44.0 MB. Free memory was 29.0 MB in the beginning and 29.0 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 446.11 ms. Allocated memory was 44.0 MB in the beginning and 58.7 MB in the end (delta: 14.7 MB). Free memory was 29.4 MB in the beginning and 39.1 MB in the end (delta: -9.7 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.52 ms. Allocated memory is still 58.7 MB. Free memory was 39.1 MB in the beginning and 36.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.87 ms. Allocated memory is still 58.7 MB. Free memory was 36.6 MB in the beginning and 34.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 35937.07 ms. Allocated memory is still 58.7 MB. Free memory was 34.3 MB in the beginning and 31.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4987.35 ms. Allocated memory is still 58.7 MB. Free memory was 31.2 MB in the beginning and 23.9 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Witness Printer took 136.93 ms. Allocated memory is still 58.7 MB. Free memory was 23.9 MB in the beginning and 19.7 MB in the end (delta: 4.2 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: 188]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17-L26] 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; [L28] static const double zero = 0.0; [L111-L114] 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; [L116] 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] [L183] double x = 1.0 / 0.0; [L119] double y, z; [L120] __int32_t i, k, hx; [L121] __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] [L124] ieee_double_shape_type ew_u; [L125] ew_u.value = (x) [L126] EXPR ew_u.parts.msw [L126] (hx) = ew_u.parts.msw [L127] EXPR ew_u.parts.lsw [L127] (lx) = ew_u.parts.lsw [L130] 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] [L131] COND FALSE !(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] [L144] COND TRUE hx >= 0x7ff00000 [L145] 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] [L184] double res = __ieee754_log10(x); [L162] __int32_t hx, 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] [L164] ieee_double_shape_type ew_u; [L165] ew_u.value = (x) [L166] EXPR ew_u.parts.msw [L166] (hx) = ew_u.parts.msw [L167] EXPR ew_u.parts.lsw [L167] (lx) = ew_u.parts.lsw [L169] hx &= 0x7fffffff [L170] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L171] hx = 0x7ff00000 - hx [L172] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 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] [L187] COND TRUE !isinf_double(res) [L188] 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, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 33 SDslu, 3 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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: 0.1s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 5 QuantifiedInterpolants, 1750 SizeOfPredicates, 7 NumberOfNonLiveVariables, 136 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...