./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0910a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3e5ce664 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 ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0910a.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 4f5b8c80e48870e4ca371ca121ab1eea2fc8dc5d ......................................................................................................................................................................................................................................................................................................................... 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 ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0910a.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 4f5b8c80e48870e4ca371ca121ab1eea2fc8dc5d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-3e5ce66 [2020-12-02 21:33:09,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 21:33:09,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 21:33:09,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 21:33:09,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 21:33:09,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 21:33:09,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 21:33:09,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 21:33:09,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 21:33:09,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 21:33:09,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 21:33:09,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 21:33:09,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 21:33:09,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 21:33:09,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 21:33:09,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 21:33:09,905 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 21:33:09,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 21:33:09,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 21:33:09,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 21:33:09,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 21:33:09,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 21:33:09,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 21:33:09,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 21:33:09,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 21:33:09,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 21:33:09,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 21:33:09,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 21:33:09,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 21:33:09,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 21:33:09,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 21:33:09,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 21:33:09,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 21:33:09,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 21:33:09,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 21:33:09,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 21:33:09,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 21:33:09,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 21:33:09,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 21:33:09,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 21:33:09,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 21:33:09,956 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 21:33:09,988 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 21:33:09,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 21:33:09,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 21:33:09,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 21:33:09,992 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 21:33:09,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 21:33:09,992 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 21:33:09,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 21:33:09,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 21:33:09,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 21:33:09,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 21:33:09,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 21:33:09,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 21:33:09,994 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 21:33:09,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 21:33:09,995 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 21:33:09,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 21:33:09,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 21:33:09,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 21:33:09,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 21:33:09,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 21:33:09,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 21:33:09,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 21:33:09,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 21:33:09,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 21:33:09,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 21:33:09,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 21:33:09,999 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 21:33:09,999 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f5b8c80e48870e4ca371ca121ab1eea2fc8dc5d [2020-12-02 21:33:10,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 21:33:10,477 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 21:33:10,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 21:33:10,483 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 21:33:10,484 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 21:33:10,485 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0910a.c [2020-12-02 21:33:10,577 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96a5aca78/1b5768dbdc5e4412b171d792a3e2651c/FLAG138266715 [2020-12-02 21:33:11,310 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 21:33:11,314 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0910a.c [2020-12-02 21:33:11,325 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96a5aca78/1b5768dbdc5e4412b171d792a3e2651c/FLAG138266715 [2020-12-02 21:33:11,644 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96a5aca78/1b5768dbdc5e4412b171d792a3e2651c [2020-12-02 21:33:11,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 21:33:11,651 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 21:33:11,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 21:33:11,654 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 21:33:11,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 21:33:11,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:33:11" (1/1) ... [2020-12-02 21:33:11,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60ab096e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:11, skipping insertion in model container [2020-12-02 21:33:11,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:33:11" (1/1) ... [2020-12-02 21:33:11,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 21:33:11,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-02 21:33:12,176 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0910a.c[3598,3611] [2020-12-02 21:33:12,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 21:33:12,194 INFO L203 MainTranslator]: Completed pre-run [2020-12-02 21:33:12,247 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0910a.c[3598,3611] [2020-12-02 21:33:12,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 21:33:12,297 INFO L208 MainTranslator]: Completed translation [2020-12-02 21:33:12,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:12 WrapperNode [2020-12-02 21:33:12,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 21:33:12,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 21:33:12,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 21:33:12,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 21:33:12,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:12" (1/1) ... [2020-12-02 21:33:12,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:12" (1/1) ... [2020-12-02 21:33:12,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 21:33:12,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 21:33:12,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 21:33:12,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 21:33:12,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:12" (1/1) ... [2020-12-02 21:33:12,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:12" (1/1) ... [2020-12-02 21:33:12,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:12" (1/1) ... [2020-12-02 21:33:12,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:12" (1/1) ... [2020-12-02 21:33:12,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:12" (1/1) ... [2020-12-02 21:33:12,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:12" (1/1) ... [2020-12-02 21:33:12,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:12" (1/1) ... [2020-12-02 21:33:12,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 21:33:12,522 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 21:33:12,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 21:33:12,523 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 21:33:12,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:12" (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 [2020-12-02 21:33:12,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 21:33:12,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 21:33:12,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-02 21:33:12,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 21:33:12,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-02 21:33:12,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 21:33:12,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 21:33:12,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-02 21:33:12,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 21:33:13,353 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 21:33:13,354 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-02 21:33:13,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:33:13 BoogieIcfgContainer [2020-12-02 21:33:13,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 21:33:13,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 21:33:13,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 21:33:13,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 21:33:13,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:33:11" (1/3) ... [2020-12-02 21:33:13,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b2cf2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:33:13, skipping insertion in model container [2020-12-02 21:33:13,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:12" (2/3) ... [2020-12-02 21:33:13,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67b2cf2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:33:13, skipping insertion in model container [2020-12-02 21:33:13,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:33:13" (3/3) ... [2020-12-02 21:33:13,372 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910a.c [2020-12-02 21:33:13,395 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 21:33:13,400 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 21:33:13,417 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 21:33:13,453 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 21:33:13,453 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 21:33:13,454 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 21:33:13,454 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 21:33:13,454 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 21:33:13,454 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 21:33:13,455 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 21:33:13,455 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 21:33:13,476 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-12-02 21:33:13,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 21:33:13,484 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:33:13,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 21:33:13,486 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:33:13,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:33:13,494 INFO L82 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2020-12-02 21:33:13,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 21:33:13,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115481301] [2020-12-02 21:33:13,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 21:33:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 21:33:13,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 21:33:13,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115481301] [2020-12-02 21:33:13,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 21:33:13,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 21:33:13,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035432482] [2020-12-02 21:33:13,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 21:33:13,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 21:33:13,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 21:33:13,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 21:33:13,773 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2020-12-02 21:33:13,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 21:33:13,799 INFO L93 Difference]: Finished difference Result 62 states and 100 transitions. [2020-12-02 21:33:13,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 21:33:13,801 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-12-02 21:33:13,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 21:33:13,815 INFO L225 Difference]: With dead ends: 62 [2020-12-02 21:33:13,816 INFO L226 Difference]: Without dead ends: 29 [2020-12-02 21:33:13,820 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 [2020-12-02 21:33:13,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-02 21:33:13,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-02 21:33:13,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-02 21:33:13,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2020-12-02 21:33:13,869 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2020-12-02 21:33:13,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 21:33:13,870 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-12-02 21:33:13,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 21:33:13,870 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-12-02 21:33:13,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-02 21:33:13,871 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:33:13,871 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 21:33:13,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 21:33:13,872 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:33:13,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:33:13,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2020-12-02 21:33:13,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 21:33:13,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278946487] [2020-12-02 21:33:13,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 21:33:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 21:33:14,015 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 21:33:14,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 21:33:14,140 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 21:33:14,205 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 21:33:14,205 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 21:33:14,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 21:33:14,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 09:33:14 BoogieIcfgContainer [2020-12-02 21:33:14,285 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 21:33:14,287 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 21:33:14,287 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 21:33:14,287 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 21:33:14,288 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:33:13" (3/4) ... [2020-12-02 21:33:14,293 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 21:33:14,294 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 21:33:14,297 INFO L168 Benchmark]: Toolchain (without parser) took 2645.10 ms. Allocated memory was 44.0 MB in the beginning and 67.1 MB in the end (delta: 23.1 MB). Free memory was 20.9 MB in the beginning and 40.3 MB in the end (delta: -19.4 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-12-02 21:33:14,298 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 44.0 MB. Free memory is still 23.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 21:33:14,300 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.81 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.7 MB in the beginning and 27.9 MB in the end (delta: -7.2 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-12-02 21:33:14,300 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.94 ms. Allocated memory is still 54.5 MB. Free memory was 27.9 MB in the beginning and 25.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 21:33:14,301 INFO L168 Benchmark]: Boogie Preprocessor took 98.10 ms. Allocated memory is still 54.5 MB. Free memory was 25.9 MB in the beginning and 37.8 MB in the end (delta: -11.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-12-02 21:33:14,303 INFO L168 Benchmark]: RCFGBuilder took 837.34 ms. Allocated memory is still 54.5 MB. Free memory was 37.8 MB in the beginning and 29.1 MB in the end (delta: 8.6 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2020-12-02 21:33:14,304 INFO L168 Benchmark]: TraceAbstraction took 923.78 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 28.8 MB in the beginning and 40.7 MB in the end (delta: -11.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 21:33:14,304 INFO L168 Benchmark]: Witness Printer took 7.29 ms. Allocated memory is still 67.1 MB. Free memory is still 40.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 21:33:14,309 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 44.0 MB. Free memory is still 23.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 648.81 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.7 MB in the beginning and 27.9 MB in the end (delta: -7.2 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 109.94 ms. Allocated memory is still 54.5 MB. Free memory was 27.9 MB in the beginning and 25.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 98.10 ms. Allocated memory is still 54.5 MB. Free memory was 25.9 MB in the beginning and 37.8 MB in the end (delta: -11.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 837.34 ms. Allocated memory is still 54.5 MB. Free memory was 37.8 MB in the beginning and 29.1 MB in the end (delta: 8.6 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 923.78 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 28.8 MB in the beginning and 40.7 MB in the end (delta: -11.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 7.29 ms. Allocated memory is still 67.1 MB. Free memory is still 40.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 139]: 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 29, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62, overapproximation of bitwiseAnd at line 28. Possible FailurePath: [L34-L43] 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; [L45] static const double zero = 0.0; VAL [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, two54_log=18014398509481984, zero=0] [L134] double x = 0.0; [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [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, two54_log=18014398509481984, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [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, two54_log=18014398509481984, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [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, two54_log=18014398509481984, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [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, two54_log=18014398509481984, zero=0] [L135] double res = __ieee754_log(x); [L21] __int32_t hx, lx; VAL [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, two54_log=18014398509481984, zero=0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (hx) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lx) = ew_u.parts.lsw [L28] hx &= 0x7fffffff [L29] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L30] hx = 0x7ff00000 - hx [L31] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [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, two54_log=18014398509481984, zero=0] [L138] COND TRUE !isinf_double(res) [L139] reach_error() VAL [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, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 42 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=32occurred 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 0.2.0-3e5ce66 [2020-12-02 21:33:17,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 21:33:17,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 21:33:17,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-02 21:33:17,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 21:33:17,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 21:33:17,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 21:33:17,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 21:33:17,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 21:33:17,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 21:33:17,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 21:33:17,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 21:33:17,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 21:33:17,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 21:33:17,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 21:33:17,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 21:33:17,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 21:33:17,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 21:33:17,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 21:33:17,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 21:33:17,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 21:33:17,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 21:33:17,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 21:33:17,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 21:33:17,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 21:33:17,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 21:33:17,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 21:33:17,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 21:33:17,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 21:33:17,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 21:33:17,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 21:33:17,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 21:33:17,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 21:33:17,403 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 21:33:17,475 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 21:33:17,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 21:33:17,481 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 21:33:17,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 21:33:17,483 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 21:33:17,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 21:33:17,484 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 21:33:17,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 21:33:17,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 21:33:17,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 21:33:17,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 21:33:17,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 21:33:17,487 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 21:33:17,487 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 21:33:17,488 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 21:33:17,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 21:33:17,488 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 21:33:17,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 21:33:17,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 21:33:17,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 21:33:17,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 21:33:17,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 21:33:17,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 21:33:17,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 21:33:17,490 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 21:33:17,491 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 21:33:17,491 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-02 21:33:17,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 21:33:17,491 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 21:33:17,491 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 21:33:17,492 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f5b8c80e48870e4ca371ca121ab1eea2fc8dc5d [2020-12-02 21:33:17,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 21:33:18,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 21:33:18,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 21:33:18,050 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 21:33:18,052 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 21:33:18,053 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0910a.c [2020-12-02 21:33:18,162 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f50a2cd87/52de55f6a7164360bdad5a3cdaa5577e/FLAGecab6c35e [2020-12-02 21:33:18,915 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 21:33:18,916 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0910a.c [2020-12-02 21:33:18,936 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f50a2cd87/52de55f6a7164360bdad5a3cdaa5577e/FLAGecab6c35e [2020-12-02 21:33:19,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f50a2cd87/52de55f6a7164360bdad5a3cdaa5577e [2020-12-02 21:33:19,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 21:33:19,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 21:33:19,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 21:33:19,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 21:33:19,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 21:33:19,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:33:19" (1/1) ... [2020-12-02 21:33:19,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2272eeee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:19, skipping insertion in model container [2020-12-02 21:33:19,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:33:19" (1/1) ... [2020-12-02 21:33:19,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 21:33:19,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-02 21:33:19,743 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0910a.c[3598,3611] [2020-12-02 21:33:19,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 21:33:19,771 INFO L203 MainTranslator]: Completed pre-run [2020-12-02 21:33:19,829 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0910a.c[3598,3611] [2020-12-02 21:33:19,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 21:33:19,857 INFO L208 MainTranslator]: Completed translation [2020-12-02 21:33:19,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:19 WrapperNode [2020-12-02 21:33:19,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 21:33:19,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 21:33:19,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 21:33:19,860 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 21:33:19,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:19" (1/1) ... [2020-12-02 21:33:19,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:19" (1/1) ... [2020-12-02 21:33:19,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 21:33:19,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 21:33:19,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 21:33:19,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 21:33:19,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:19" (1/1) ... [2020-12-02 21:33:19,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:19" (1/1) ... [2020-12-02 21:33:19,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:19" (1/1) ... [2020-12-02 21:33:19,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:19" (1/1) ... [2020-12-02 21:33:19,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:19" (1/1) ... [2020-12-02 21:33:19,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:19" (1/1) ... [2020-12-02 21:33:19,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:19" (1/1) ... [2020-12-02 21:33:20,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 21:33:20,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 21:33:20,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 21:33:20,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 21:33:20,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:19" (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 [2020-12-02 21:33:20,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-02 21:33:20,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-02 21:33:20,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 21:33:20,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 21:33:20,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 21:33:20,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 21:33:20,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 21:33:20,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 21:33:20,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 21:33:47,834 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 21:33:47,835 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-02 21:33:47,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:33:47 BoogieIcfgContainer [2020-12-02 21:33:47,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 21:33:47,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 21:33:47,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 21:33:47,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 21:33:47,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:33:19" (1/3) ... [2020-12-02 21:33:47,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5febc5f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:33:47, skipping insertion in model container [2020-12-02 21:33:47,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:33:19" (2/3) ... [2020-12-02 21:33:47,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5febc5f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:33:47, skipping insertion in model container [2020-12-02 21:33:47,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:33:47" (3/3) ... [2020-12-02 21:33:47,859 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910a.c [2020-12-02 21:33:47,880 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 21:33:47,886 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 21:33:47,902 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 21:33:47,953 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 21:33:47,954 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 21:33:47,954 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 21:33:47,954 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 21:33:47,955 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 21:33:47,955 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 21:33:47,955 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 21:33:47,956 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 21:33:47,979 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-12-02 21:33:47,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 21:33:47,989 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:33:47,990 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 21:33:47,991 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:33:48,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:33:48,001 INFO L82 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2020-12-02 21:33:48,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 21:33:48,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188533196] [2020-12-02 21:33:48,023 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 [2020-12-02 21:33:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 21:33:49,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 21:33:49,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 21:33:49,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 21:33:49,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 21:33:49,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 21:33:49,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188533196] [2020-12-02 21:33:49,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 21:33:49,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 21:33:49,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339509186] [2020-12-02 21:33:49,311 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 21:33:49,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 21:33:49,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 21:33:49,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 21:33:49,332 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2020-12-02 21:33:49,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 21:33:49,355 INFO L93 Difference]: Finished difference Result 62 states and 100 transitions. [2020-12-02 21:33:49,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 21:33:49,357 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-12-02 21:33:49,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 21:33:49,369 INFO L225 Difference]: With dead ends: 62 [2020-12-02 21:33:49,370 INFO L226 Difference]: Without dead ends: 29 [2020-12-02 21:33:49,374 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 [2020-12-02 21:33:49,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-02 21:33:49,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-02 21:33:49,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-02 21:33:49,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2020-12-02 21:33:49,416 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2020-12-02 21:33:49,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 21:33:49,417 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-12-02 21:33:49,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 21:33:49,417 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-12-02 21:33:49,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-02 21:33:49,418 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:33:49,418 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 21:33:49,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 21:33:49,627 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:33:49,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:33:49,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2020-12-02 21:33:49,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 21:33:49,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1387299313] [2020-12-02 21:33:49,632 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 [2020-12-02 21:33:50,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 21:33:50,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-02 21:33:50,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 21:33:51,013 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-02 21:33:51,617 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2020-12-02 21:33:51,692 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-02 21:33:51,745 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:33:51,746 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-02 21:33:51,981 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-02 21:33:51,982 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:33:51,985 INFO L547 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-02 21:33:51,986 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:35, output treesize:24 [2020-12-02 21:33:53,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 21:33:53,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 21:33:54,607 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 78 [2020-12-02 21:33:54,664 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-02 21:33:54,718 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:33:54,719 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-02 21:33:54,890 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-12-02 21:33:54,891 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:33:54,893 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-02 21:33:54,894 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:97, output treesize:53 [2020-12-02 21:33:59,123 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64))) (or (not (= (bvadd (bvneg (bvlshr (let ((.cse0 (bvadd (bvneg (bvor (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|)) (bvlshr (let ((.cse1 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_9|))) (bvor .cse1 (bvneg .cse1))) (_ bv31 32)))) (_ bv2146435072 32)))) (bvor .cse0 (bvneg .cse0))) (_ bv31 32))) (_ bv1 32)) (_ bv0 32))) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|)) (fp.div c_currentRoundingMode (fp.neg c_~two54_log~0) c_~zero~0))))) is different from false [2020-12-02 21:34:01,345 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64))) (or (not (= (bvadd (bvneg (bvlshr (let ((.cse0 (bvadd (bvneg (bvor (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|)) (bvlshr (let ((.cse1 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_9|))) (bvor .cse1 (bvneg .cse1))) (_ bv31 32)))) (_ bv2146435072 32)))) (bvor .cse0 (bvneg .cse0))) (_ bv31 32))) (_ bv1 32)) (_ bv0 32))) (not (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|)) (fp.div c_currentRoundingMode (fp.neg c_~two54_log~0) c_~zero~0))))) is different from true [2020-12-02 21:34:01,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 21:34:01,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1387299313] [2020-12-02 21:34:01,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 21:34:01,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2020-12-02 21:34:01,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526400543] [2020-12-02 21:34:01,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-02 21:34:01,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 21:34:01,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-02 21:34:01,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=128, Unknown=2, NotChecked=22, Total=182 [2020-12-02 21:34:01,398 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand 14 states. [2020-12-02 21:34:06,844 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-02 21:34:08,107 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-02 21:34:14,034 WARN L197 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-02 21:34:15,408 WARN L197 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-12-02 21:34:21,397 WARN L197 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-12-02 21:34:51,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 21:34:51,981 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2020-12-02 21:34:51,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-02 21:34:51,982 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 14 [2020-12-02 21:34:51,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 21:34:51,983 INFO L225 Difference]: With dead ends: 52 [2020-12-02 21:34:51,984 INFO L226 Difference]: Without dead ends: 44 [2020-12-02 21:34:51,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=79, Invalid=229, Unknown=2, NotChecked=32, Total=342 [2020-12-02 21:34:51,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-12-02 21:34:51,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 29. [2020-12-02 21:34:52,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-02 21:34:52,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2020-12-02 21:34:52,001 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 14 [2020-12-02 21:34:52,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 21:34:52,001 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2020-12-02 21:34:52,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-02 21:34:52,002 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2020-12-02 21:34:52,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-02 21:34:52,003 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:34:52,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 21:34:52,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 21:34:52,205 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:34:52,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:34:52,206 INFO L82 PathProgramCache]: Analyzing trace with hash 2016616349, now seen corresponding path program 1 times [2020-12-02 21:34:52,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 21:34:52,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1407411474] [2020-12-02 21:34:52,208 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 [2020-12-02 21:34:52,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 21:34:52,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-02 21:34:52,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 21:34:52,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 21:34:52,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 21:34:53,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 21:34:53,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1407411474] [2020-12-02 21:34:53,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 21:34:53,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-12-02 21:34:53,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143287026] [2020-12-02 21:34:53,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 21:34:53,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 21:34:53,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 21:34:53,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-02 21:34:53,413 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand 6 states. [2020-12-02 21:34:53,695 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-02 21:35:00,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 21:35:00,924 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2020-12-02 21:35:01,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 21:35:01,510 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-02 21:35:01,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 21:35:01,511 INFO L225 Difference]: With dead ends: 56 [2020-12-02 21:35:01,511 INFO L226 Difference]: Without dead ends: 37 [2020-12-02 21:35:01,511 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-02 21:35:01,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-02 21:35:01,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 29. [2020-12-02 21:35:01,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-02 21:35:01,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2020-12-02 21:35:01,517 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 14 [2020-12-02 21:35:01,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 21:35:01,518 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2020-12-02 21:35:01,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 21:35:01,518 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2020-12-02 21:35:01,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-02 21:35:01,519 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:35:01,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 21:35:01,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-02 21:35:01,733 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:35:01,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:35:01,734 INFO L82 PathProgramCache]: Analyzing trace with hash 933813038, now seen corresponding path program 1 times [2020-12-02 21:35:01,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 21:35:01,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494410130] [2020-12-02 21:35:01,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-02 21:35:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 21:35:02,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-02 21:35:02,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 21:35:02,378 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-02 21:35:02,722 WARN L197 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-12-02 21:35:03,378 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-02 21:35:03,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 21:35:03,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 21:35:06,181 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_11| (_ BitVec 64))) (or (not (= (fp.mul c_currentRoundingMode c_ULTIMATE.start___ieee754_log_~x c_~two54_log~0) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_11|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_11|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_11|)))) (not (bvsge ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_11|) (_ bv2146435072 32))))) is different from true [2020-12-02 21:35:06,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 21:35:06,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494410130] [2020-12-02 21:35:06,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 21:35:06,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-12-02 21:35:06,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011249040] [2020-12-02 21:35:06,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-02 21:35:06,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 21:35:06,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-02 21:35:06,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=51, Unknown=1, NotChecked=14, Total=90 [2020-12-02 21:35:06,617 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand 10 states. [2020-12-02 21:35:10,101 WARN L197 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 32 DAG size of output: 24 [2020-12-02 21:35:11,641 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-12-02 21:35:24,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 21:35:24,159 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2020-12-02 21:35:24,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 21:35:24,300 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-12-02 21:35:24,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 21:35:24,301 INFO L225 Difference]: With dead ends: 45 [2020-12-02 21:35:24,301 INFO L226 Difference]: Without dead ends: 34 [2020-12-02 21:35:24,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=40, Invalid=73, Unknown=1, NotChecked=18, Total=132 [2020-12-02 21:35:24,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-02 21:35:24,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 26. [2020-12-02 21:35:24,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-02 21:35:24,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2020-12-02 21:35:24,306 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 18 [2020-12-02 21:35:24,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 21:35:24,307 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2020-12-02 21:35:24,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-02 21:35:24,307 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2020-12-02 21:35:24,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-02 21:35:24,308 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:35:24,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 21:35:24,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-02 21:35:24,518 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:35:24,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:35:24,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1217171362, now seen corresponding path program 1 times [2020-12-02 21:35:24,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 21:35:24,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1122474190] [2020-12-02 21:35:24,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-02 21:35:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 21:35:24,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-02 21:35:24,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 21:35:25,195 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-02 21:35:25,496 WARN L197 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-12-02 21:35:25,983 WARN L197 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-02 21:35:26,317 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-02 21:35:26,712 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-12-02 21:35:27,287 WARN L197 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-12-02 21:35:28,029 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-12-02 21:35:28,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 21:35:28,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 21:35:32,072 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_12| (_ BitVec 64)) (v_ULTIMATE.start___ieee754_log_~hx~1_25 (_ BitVec 32))) (or (not (= (fp.mul c_currentRoundingMode c_ULTIMATE.start___ieee754_log_~x c_~two54_log~0) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_12|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_12|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_12|)))) (not (= (bvadd c_ULTIMATE.start___ieee754_log_~k~0 (_ bv4294966219 32)) (bvadd (bvmul (_ bv4294967295 32) (bvashr (bvand (_ bv1048576 32) (bvadd v_ULTIMATE.start___ieee754_log_~hx~1_25 (_ bv614244 32))) (_ bv20 32))) (bvmul (_ bv4294967295 32) (bvashr ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_12|) (_ bv20 32)))))))) is different from true [2020-12-02 21:35:34,170 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_12| (_ BitVec 64)) (v_ULTIMATE.start___ieee754_log_~hx~1_25 (_ BitVec 32))) (or (not (= (_ bv4294966219 32) (bvadd (bvmul (_ bv4294967295 32) (bvashr (bvand (_ bv1048576 32) (bvadd v_ULTIMATE.start___ieee754_log_~hx~1_25 (_ bv614244 32))) (_ bv20 32))) (bvmul (_ bv4294967295 32) (bvashr ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_12|) (_ bv20 32)))))) (not (= (fp.mul c_currentRoundingMode c_ULTIMATE.start___ieee754_log_~x c_~two54_log~0) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_12|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_12|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_12|)))))) is different from true [2020-12-02 21:35:34,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 21:35:34,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1122474190] [2020-12-02 21:35:34,236 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 21:35:34,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2020-12-02 21:35:34,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910452268] [2020-12-02 21:35:34,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-02 21:35:34,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 21:35:34,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-02 21:35:34,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=119, Unknown=2, NotChecked=46, Total=210 [2020-12-02 21:35:34,239 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 15 states. [2020-12-02 21:35:35,841 WARN L197 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 30 [2020-12-02 21:35:38,239 WARN L197 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 16 [2020-12-02 21:35:39,073 WARN L197 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 29 [2020-12-02 21:35:39,657 WARN L197 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-12-02 21:35:40,229 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-12-02 21:35:41,710 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-12-02 21:36:01,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 21:36:01,473 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-12-02 21:36:01,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-02 21:36:01,603 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 24 [2020-12-02 21:36:01,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 21:36:01,604 INFO L225 Difference]: With dead ends: 34 [2020-12-02 21:36:01,604 INFO L226 Difference]: Without dead ends: 26 [2020-12-02 21:36:01,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=97, Invalid=251, Unknown=2, NotChecked=70, Total=420 [2020-12-02 21:36:01,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-02 21:36:01,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-12-02 21:36:01,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-02 21:36:01,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-12-02 21:36:01,608 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 24 [2020-12-02 21:36:01,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 21:36:01,609 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-12-02 21:36:01,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-02 21:36:01,609 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-12-02 21:36:01,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-02 21:36:01,610 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:36:01,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 21:36:01,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-02 21:36:01,819 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:36:01,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:36:01,820 INFO L82 PathProgramCache]: Analyzing trace with hash 407824736, now seen corresponding path program 1 times [2020-12-02 21:36:01,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 21:36:01,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [261359272] [2020-12-02 21:36:01,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-02 21:36:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 21:36:02,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-02 21:36:02,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 21:36:03,029 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2020-12-02 21:36:03,087 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-02 21:36:03,142 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:36:03,143 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-02 21:36:03,376 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-02 21:36:03,377 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:36:03,378 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-02 21:36:03,379 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:18 [2020-12-02 21:36:03,664 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-02 21:36:03,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 21:36:03,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 21:36:04,005 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2020-12-02 21:36:04,062 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-02 21:36:04,112 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:36:04,113 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-02 21:36:04,252 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-02 21:36:04,253 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:36:04,255 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-02 21:36:04,256 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:31, output treesize:20 [2020-12-02 21:36:04,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 21:36:04,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [261359272] [2020-12-02 21:36:04,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 21:36:04,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-12-02 21:36:04,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807460052] [2020-12-02 21:36:04,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 21:36:04,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 21:36:04,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 21:36:04,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-02 21:36:04,519 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 6 states. [2020-12-02 21:36:04,758 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-02 21:36:04,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 21:36:04,782 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-12-02 21:36:04,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 21:36:04,784 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-12-02 21:36:04,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 21:36:04,785 INFO L225 Difference]: With dead ends: 26 [2020-12-02 21:36:04,785 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 21:36:04,785 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-02 21:36:04,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 21:36:04,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 21:36:04,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 21:36:04,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 21:36:04,786 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2020-12-02 21:36:04,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 21:36:04,786 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 21:36:04,786 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 21:36:04,786 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 21:36:04,786 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 21:36:04,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-02 21:36:04,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-02 21:36:05,518 WARN L197 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-12-02 21:36:05,757 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-02 21:36:06,007 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-02 21:36:06,269 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-02 21:36:06,271 INFO L262 CegarLoopResult]: For program point L60(lines 60 72) no Hoare annotation was computed. [2020-12-02 21:36:06,271 INFO L262 CegarLoopResult]: For program point L60-1(lines 47 126) no Hoare annotation was computed. [2020-12-02 21:36:06,271 INFO L262 CegarLoopResult]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2020-12-02 21:36:06,272 INFO L258 CegarLoopResult]: At program point L52-2(lines 52 57) the Hoare annotation is: (and (= ~zero~0 (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0) ~two54_log~0) (= (_ +zero 11 53) ULTIMATE.start___ieee754_log_~x)) [2020-12-02 21:36:06,272 INFO L262 CegarLoopResult]: For program point L52-3(lines 52 57) no Hoare annotation was computed. [2020-12-02 21:36:06,272 INFO L265 CegarLoopResult]: At program point L143(lines 128 144) the Hoare annotation is: true [2020-12-02 21:36:06,272 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-02 21:36:06,272 INFO L262 CegarLoopResult]: For program point L61(lines 61 62) no Hoare annotation was computed. [2020-12-02 21:36:06,272 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-02 21:36:06,273 INFO L262 CegarLoopResult]: For program point L86(lines 86 102) no Hoare annotation was computed. [2020-12-02 21:36:06,273 INFO L262 CegarLoopResult]: For program point L78-1(lines 78 83) no Hoare annotation was computed. [2020-12-02 21:36:06,273 INFO L258 CegarLoopResult]: At program point L78-2(lines 78 83) the Hoare annotation is: false [2020-12-02 21:36:06,273 INFO L262 CegarLoopResult]: For program point L78-3(lines 78 83) no Hoare annotation was computed. [2020-12-02 21:36:06,273 INFO L262 CegarLoopResult]: For program point L87(lines 87 94) no Hoare annotation was computed. [2020-12-02 21:36:06,273 INFO L262 CegarLoopResult]: For program point L96(lines 96 101) no Hoare annotation was computed. [2020-12-02 21:36:06,274 INFO L262 CegarLoopResult]: For program point L63(lines 63 64) no Hoare annotation was computed. [2020-12-02 21:36:06,274 INFO L262 CegarLoopResult]: For program point L121(lines 121 124) no Hoare annotation was computed. [2020-12-02 21:36:06,274 INFO L262 CegarLoopResult]: For program point L88(lines 88 93) no Hoare annotation was computed. [2020-12-02 21:36:06,274 INFO L262 CegarLoopResult]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2020-12-02 21:36:06,274 INFO L258 CegarLoopResult]: At program point L22-2(lines 22 27) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_isinf_double_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_#res|)) (= ~zero~0 (_ +zero 11 53)) (= ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0) ~two54_log~0)) [2020-12-02 21:36:06,275 INFO L262 CegarLoopResult]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2020-12-02 21:36:06,275 INFO L262 CegarLoopResult]: For program point L113(lines 113 125) no Hoare annotation was computed. [2020-12-02 21:36:06,275 INFO L262 CegarLoopResult]: For program point L138(lines 138 141) no Hoare annotation was computed. [2020-12-02 21:36:06,275 INFO L258 CegarLoopResult]: At program point L31(lines 20 32) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_isinf_double_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_#res|)) (exists ((|v_skolemized_q#valueAsBitvector_9| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_9|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_9|))) (= (bvadd (bvneg (bvlshr (let ((.cse0 (bvadd (bvneg (bvor (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_9|)) (bvlshr (let ((.cse1 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_9|))) (bvor .cse1 (bvneg .cse1))) (_ bv31 32)))) (_ bv2146435072 32)))) (bvor .cse0 (bvneg .cse0))) (_ bv31 32))) (_ bv1 32)) |ULTIMATE.start_isinf_double_#res|))) (= ~zero~0 (_ +zero 11 53)) (= ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0) ~two54_log~0)) [2020-12-02 21:36:06,275 INFO L262 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-12-02 21:36:06,276 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-02 21:36:06,276 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2020-12-02 21:36:06,276 INFO L262 CegarLoopResult]: For program point L115(lines 115 119) no Hoare annotation was computed. [2020-12-02 21:36:06,276 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-02 21:36:06,276 INFO L258 CegarLoopResult]: At program point L124(lines 47 126) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_#res|)) (= ~zero~0 (_ +zero 11 53)) (= ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0) ~two54_log~0)) [2020-12-02 21:36:06,276 INFO L262 CegarLoopResult]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2020-12-02 21:36:06,276 INFO L258 CegarLoopResult]: At program point L67-2(lines 67 71) the Hoare annotation is: false [2020-12-02 21:36:06,284 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,284 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,285 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,285 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,285 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,285 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,286 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,286 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,286 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,286 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,287 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,287 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,287 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,287 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,287 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,296 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,296 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,297 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,297 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,297 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,297 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,297 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,298 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,298 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,298 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,298 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,299 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,299 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,299 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,299 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,303 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,303 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,304 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,304 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,305 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:36:06,306 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:36:06,307 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,307 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,307 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,307 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,308 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,309 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,309 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,309 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 09:36:06 BoogieIcfgContainer [2020-12-02 21:36:06,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 21:36:06,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 21:36:06,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 21:36:06,319 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 21:36:06,319 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:33:47" (3/4) ... [2020-12-02 21:36:06,323 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 21:36:06,341 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-12-02 21:36:06,342 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-02 21:36:06,343 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 21:36:06,343 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 21:36:06,373 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result) && zero == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log [2020-12-02 21:36:06,374 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result)) && zero == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log [2020-12-02 21:36:06,375 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result)) && (\exists v_skolemized_q#valueAsBitvector_9 : bv64, currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0]) && ~bvadd64(~bvneg32(~bvlshr32(~bvor32(~bvadd64(~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_9[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_9[31:0])), 31bv32))), 2146435072bv32), ~bvneg32(~bvadd64(~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_9[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_9[31:0])), 31bv32))), 2146435072bv32))), 31bv32)), 1bv32) == \result)) && zero == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log [2020-12-02 21:36:06,432 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 21:36:06,433 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 21:36:06,434 INFO L168 Benchmark]: Toolchain (without parser) took 167158.18 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.6 MB in the beginning and 22.6 MB in the end (delta: -14.7 kB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2020-12-02 21:36:06,434 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 46.1 MB. Free memory is still 23.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 21:36:06,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 576.87 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.3 MB in the beginning and 31.0 MB in the end (delta: -8.7 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-12-02 21:36:06,437 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.08 ms. Allocated memory is still 56.6 MB. Free memory was 31.0 MB in the beginning and 29.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 21:36:06,438 INFO L168 Benchmark]: Boogie Preprocessor took 80.93 ms. Allocated memory is still 56.6 MB. Free memory was 29.0 MB in the beginning and 27.0 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 21:36:06,438 INFO L168 Benchmark]: RCFGBuilder took 27828.85 ms. Allocated memory is still 56.6 MB. Free memory was 27.0 MB in the beginning and 33.5 MB in the end (delta: -6.4 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2020-12-02 21:36:06,439 INFO L168 Benchmark]: TraceAbstraction took 138479.05 ms. Allocated memory is still 56.6 MB. Free memory was 33.0 MB in the beginning and 28.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. [2020-12-02 21:36:06,440 INFO L168 Benchmark]: Witness Printer took 114.75 ms. Allocated memory is still 56.6 MB. Free memory was 28.0 MB in the beginning and 22.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-02 21:36:06,445 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 46.1 MB. Free memory is still 23.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 576.87 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.3 MB in the beginning and 31.0 MB in the end (delta: -8.7 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.08 ms. Allocated memory is still 56.6 MB. Free memory was 31.0 MB in the beginning and 29.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.93 ms. Allocated memory is still 56.6 MB. Free memory was 29.0 MB in the beginning and 27.0 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 27828.85 ms. Allocated memory is still 56.6 MB. Free memory was 27.0 MB in the beginning and 33.5 MB in the end (delta: -6.4 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 138479.05 ms. Allocated memory is still 56.6 MB. Free memory was 33.0 MB in the beginning and 28.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. * Witness Printer took 114.75 ms. Allocated memory is still 56.6 MB. Free memory was 28.0 MB in the beginning and 22.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 139]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant [2020-12-02 21:36:06,462 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,463 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,463 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,463 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,463 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,463 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,464 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,464 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,464 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,464 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,464 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,465 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,468 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,468 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,468 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,475 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,476 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,477 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,477 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,477 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,477 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,478 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,480 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,480 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,480 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,481 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,481 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,481 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,481 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] [2020-12-02 21:36:06,482 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_9,QUANTIFIED] Derived loop invariant: ((((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result)) && (\exists v_skolemized_q#valueAsBitvector_9 : bv64, currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_9[63:63], v_skolemized_q#valueAsBitvector_9[62:52], v_skolemized_q#valueAsBitvector_9[51:0]) && ~bvadd64(~bvneg32(~bvlshr32(~bvor32(~bvadd64(~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_9[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_9[31:0])), 31bv32))), 2146435072bv32), ~bvneg32(~bvadd64(~bvneg32(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_9[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_9[31:0], ~bvneg32(v_skolemized_q#valueAsBitvector_9[31:0])), 31bv32))), 2146435072bv32))), 31bv32)), 1bv32) == \result)) && zero == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant [2020-12-02 21:36:06,485 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,486 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,486 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,487 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result) && zero == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant [2020-12-02 21:36:06,487 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:36:06,488 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((zero == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log) && ~Pluszero~LONGDOUBLE() == x - InvariantResult [Line: 22]: Loop Invariant [2020-12-02 21:36:06,489 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,489 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,490 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,490 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,491 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,493 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,494 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-02 21:36:06,494 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == \result)) && zero == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 137.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 104.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 142 SDtfs, 156 SDslu, 421 SDs, 0 SdLazy, 190 SolverSat, 41 SolverUnsat, 30 SolverUnknown, 0 SolverNotchecked, 88.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 220 GetRequests, 159 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 35.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 6 MinimizatonAttempts, 31 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 153 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 27.3s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 200 ConstructedInterpolants, 50 QuantifiedInterpolants, 36164 SizeOfPredicates, 43 NumberOfNonLiveVariables, 466 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...