./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0662b.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_0662b.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 c4312fbc25b8e0f695eb796ff19f0bea0b31ca81 ..................................................................................................................................................................................................................................................................................................................................... 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_0662b.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 c4312fbc25b8e0f695eb796ff19f0bea0b31ca81 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:21:04,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 21:21:04,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 21:21:04,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 21:21:04,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 21:21:04,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 21:21:04,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 21:21:04,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 21:21:04,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 21:21:04,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 21:21:04,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 21:21:04,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 21:21:04,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 21:21:04,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 21:21:04,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 21:21:04,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 21:21:04,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 21:21:04,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 21:21:04,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 21:21:04,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 21:21:04,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 21:21:04,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 21:21:04,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 21:21:04,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 21:21:04,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 21:21:04,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 21:21:04,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 21:21:04,923 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 21:21:04,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 21:21:04,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 21:21:04,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 21:21:04,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 21:21:04,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 21:21:04,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 21:21:04,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 21:21:04,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 21:21:04,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 21:21:04,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 21:21:04,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 21:21:04,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 21:21:04,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 21:21:04,938 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 21:21:04,982 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 21:21:04,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 21:21:04,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 21:21:04,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 21:21:04,985 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 21:21:04,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 21:21:04,985 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 21:21:04,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 21:21:04,986 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 21:21:04,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 21:21:04,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 21:21:04,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 21:21:04,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 21:21:04,987 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 21:21:04,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 21:21:04,988 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 21:21:04,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 21:21:04,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 21:21:04,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 21:21:04,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 21:21:04,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 21:21:04,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 21:21:04,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 21:21:04,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 21:21:04,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 21:21:04,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 21:21:04,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 21:21:04,991 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 21:21:04,991 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4312fbc25b8e0f695eb796ff19f0bea0b31ca81 [2020-12-02 21:21:05,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 21:21:05,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 21:21:05,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 21:21:05,485 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 21:21:05,485 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 21:21:05,487 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0662b.c [2020-12-02 21:21:05,593 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e58b7fa2e/7a2009e258c4421690ad29dafa27f3c2/FLAG2a6256101 [2020-12-02 21:21:06,228 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 21:21:06,228 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0662b.c [2020-12-02 21:21:06,240 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e58b7fa2e/7a2009e258c4421690ad29dafa27f3c2/FLAG2a6256101 [2020-12-02 21:21:06,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e58b7fa2e/7a2009e258c4421690ad29dafa27f3c2 [2020-12-02 21:21:06,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 21:21:06,594 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 21:21:06,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 21:21:06,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 21:21:06,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 21:21:06,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:21:06" (1/1) ... [2020-12-02 21:21:06,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70dead1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:06, skipping insertion in model container [2020-12-02 21:21:06,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:21:06" (1/1) ... [2020-12-02 21:21:06,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 21:21:06,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-02 21:21:06,953 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_0662b.c[6224,6237] [2020-12-02 21:21:06,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 21:21:06,972 INFO L203 MainTranslator]: Completed pre-run [2020-12-02 21:21:07,071 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_0662b.c[6224,6237] [2020-12-02 21:21:07,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 21:21:07,120 INFO L208 MainTranslator]: Completed translation [2020-12-02 21:21:07,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:07 WrapperNode [2020-12-02 21:21:07,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 21:21:07,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 21:21:07,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 21:21:07,126 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 21:21:07,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:07" (1/1) ... [2020-12-02 21:21:07,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:07" (1/1) ... [2020-12-02 21:21:07,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 21:21:07,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 21:21:07,266 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 21:21:07,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 21:21:07,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:07" (1/1) ... [2020-12-02 21:21:07,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:07" (1/1) ... [2020-12-02 21:21:07,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:07" (1/1) ... [2020-12-02 21:21:07,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:07" (1/1) ... [2020-12-02 21:21:07,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:07" (1/1) ... [2020-12-02 21:21:07,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:07" (1/1) ... [2020-12-02 21:21:07,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:07" (1/1) ... [2020-12-02 21:21:07,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 21:21:07,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 21:21:07,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 21:21:07,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 21:21:07,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:07" (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 21:21:07,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 21:21:07,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 21:21:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-02 21:21:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 21:21:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-02 21:21:07,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 21:21:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 21:21:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-02 21:21:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-02 21:21:07,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 21:21:08,330 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 21:21:08,331 INFO L298 CfgBuilder]: Removed 44 assume(true) statements. [2020-12-02 21:21:08,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:21:08 BoogieIcfgContainer [2020-12-02 21:21:08,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 21:21:08,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 21:21:08,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 21:21:08,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 21:21:08,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:21:06" (1/3) ... [2020-12-02 21:21:08,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@253a591c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:21:08, skipping insertion in model container [2020-12-02 21:21:08,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:07" (2/3) ... [2020-12-02 21:21:08,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@253a591c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:21:08, skipping insertion in model container [2020-12-02 21:21:08,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:21:08" (3/3) ... [2020-12-02 21:21:08,344 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0662b.c [2020-12-02 21:21:08,362 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 21:21:08,367 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 21:21:08,391 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 21:21:08,421 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 21:21:08,422 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 21:21:08,422 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 21:21:08,422 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 21:21:08,422 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 21:21:08,423 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 21:21:08,423 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 21:21:08,423 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 21:21:08,443 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states. [2020-12-02 21:21:08,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 21:21:08,451 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:21:08,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 21:21:08,453 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:21:08,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:21:08,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1059427896, now seen corresponding path program 1 times [2020-12-02 21:21:08,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 21:21:08,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198419031] [2020-12-02 21:21:08,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 21:21:08,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 21:21:08,675 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 21:21:08,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198419031] [2020-12-02 21:21:08,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 21:21:08,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 21:21:08,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734876728] [2020-12-02 21:21:08,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 21:21:08,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 21:21:08,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 21:21:08,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 21:21:08,706 INFO L87 Difference]: Start difference. First operand 115 states. Second operand 2 states. [2020-12-02 21:21:08,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 21:21:08,766 INFO L93 Difference]: Finished difference Result 227 states and 382 transitions. [2020-12-02 21:21:08,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 21:21:08,769 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-02 21:21:08,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 21:21:08,804 INFO L225 Difference]: With dead ends: 227 [2020-12-02 21:21:08,804 INFO L226 Difference]: Without dead ends: 111 [2020-12-02 21:21:08,811 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 21:21:08,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-12-02 21:21:08,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-12-02 21:21:08,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-12-02 21:21:08,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2020-12-02 21:21:08,880 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 11 [2020-12-02 21:21:08,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 21:21:08,880 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2020-12-02 21:21:08,881 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 21:21:08,881 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2020-12-02 21:21:08,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 21:21:08,882 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:21:08,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 21:21:08,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 21:21:08,883 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:21:08,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:21:08,884 INFO L82 PathProgramCache]: Analyzing trace with hash -7417919, now seen corresponding path program 1 times [2020-12-02 21:21:08,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 21:21:08,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360543555] [2020-12-02 21:21:08,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 21:21:08,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 21:21:08,997 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 21:21:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 21:21:09,130 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 21:21:09,196 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 21:21:09,197 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 21:21:09,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 21:21:09,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 09:21:09 BoogieIcfgContainer [2020-12-02 21:21:09,270 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 21:21:09,271 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 21:21:09,271 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 21:21:09,272 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 21:21:09,273 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:21:08" (3/4) ... [2020-12-02 21:21:09,277 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 21:21:09,278 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 21:21:09,281 INFO L168 Benchmark]: Toolchain (without parser) took 2685.11 ms. Allocated memory was 44.0 MB in the beginning and 71.3 MB in the end (delta: 27.3 MB). Free memory was 21.3 MB in the beginning and 38.1 MB in the end (delta: -16.8 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-12-02 21:21:09,282 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 44.0 MB. Free memory was 27.1 MB in the beginning and 27.1 MB in the end (delta: 32.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 21:21:09,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 524.33 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.0 MB in the beginning and 35.8 MB in the end (delta: -14.8 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2020-12-02 21:21:09,284 INFO L168 Benchmark]: Boogie Procedure Inliner took 138.36 ms. Allocated memory is still 54.5 MB. Free memory was 35.6 MB in the beginning and 32.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-02 21:21:09,285 INFO L168 Benchmark]: Boogie Preprocessor took 130.28 ms. Allocated memory is still 54.5 MB. Free memory was 32.3 MB in the beginning and 29.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 21:21:09,285 INFO L168 Benchmark]: RCFGBuilder took 939.53 ms. Allocated memory is still 54.5 MB. Free memory was 29.0 MB in the beginning and 22.8 MB in the end (delta: 6.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2020-12-02 21:21:09,286 INFO L168 Benchmark]: TraceAbstraction took 934.63 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 22.5 MB in the beginning and 38.4 MB in the end (delta: -15.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 21:21:09,287 INFO L168 Benchmark]: Witness Printer took 7.16 ms. Allocated memory is still 71.3 MB. Free memory was 38.4 MB in the beginning and 38.1 MB in the end (delta: 336.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 21:21:09,292 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 44.0 MB. Free memory was 27.1 MB in the beginning and 27.1 MB in the end (delta: 32.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 524.33 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.0 MB in the beginning and 35.8 MB in the end (delta: -14.8 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 138.36 ms. Allocated memory is still 54.5 MB. Free memory was 35.6 MB in the beginning and 32.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 130.28 ms. Allocated memory is still 54.5 MB. Free memory was 32.3 MB in the beginning and 29.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 939.53 ms. Allocated memory is still 54.5 MB. Free memory was 29.0 MB in the beginning and 22.8 MB in the end (delta: 6.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 934.63 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 22.5 MB in the beginning and 38.4 MB in the end (delta: -15.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 7.16 ms. Allocated memory is still 71.3 MB. Free memory was 38.4 MB in the beginning and 38.1 MB in the end (delta: 336.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 262]: 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 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 261. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L253] double x = 0.0; [L254] double y = __VERIFIER_nondet_double(); [L256] COND TRUE y < 0.0 [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L258] double res = __ieee754_atan2(y, x); [L261] COND TRUE res != -pi_o_2 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L262] reach_error() VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 115 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 164 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=115occurred 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 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 21:21:11,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 21:21:11,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 21:21:11,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-02 21:21:11,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 21:21:11,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 21:21:11,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 21:21:11,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 21:21:11,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 21:21:12,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 21:21:12,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 21:21:12,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 21:21:12,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 21:21:12,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 21:21:12,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 21:21:12,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 21:21:12,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-02 21:21:12,027 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 21:21:12,028 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 21:21:12,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 21:21:12,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 21:21:12,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 21:21:12,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 21:21:12,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 21:21:12,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 21:21:12,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 21:21:12,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 21:21:12,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 21:21:12,038 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 21:21:12,067 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 21:21:12,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 21:21:12,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 21:21:12,071 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 21:21:12,071 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 21:21:12,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 21:21:12,072 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 21:21:12,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 21:21:12,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 21:21:12,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 21:21:12,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 21:21:12,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 21:21:12,074 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 21:21:12,074 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 21:21:12,074 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 21:21:12,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 21:21:12,075 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 21:21:12,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 21:21:12,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 21:21:12,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 21:21:12,076 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 21:21:12,077 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 21:21:12,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 21:21:12,077 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 21:21:12,078 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 21:21:12,078 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 21:21:12,078 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-02 21:21:12,079 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 21:21:12,079 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 21:21:12,079 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 21:21:12,079 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4312fbc25b8e0f695eb796ff19f0bea0b31ca81 [2020-12-02 21:21:12,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 21:21:12,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 21:21:12,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 21:21:12,534 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 21:21:12,535 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 21:21:12,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0662b.c [2020-12-02 21:21:12,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/869fc5bad/8cd0d77c96ab4917adf93743b61ed1ea/FLAGba66e84cf [2020-12-02 21:21:13,344 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 21:21:13,345 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0662b.c [2020-12-02 21:21:13,361 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/869fc5bad/8cd0d77c96ab4917adf93743b61ed1ea/FLAGba66e84cf [2020-12-02 21:21:13,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/869fc5bad/8cd0d77c96ab4917adf93743b61ed1ea [2020-12-02 21:21:13,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 21:21:13,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 21:21:13,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 21:21:13,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 21:21:13,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 21:21:13,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:21:13" (1/1) ... [2020-12-02 21:21:13,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60247db9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:13, skipping insertion in model container [2020-12-02 21:21:13,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:21:13" (1/1) ... [2020-12-02 21:21:13,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 21:21:13,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-02 21:21:14,087 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_0662b.c[6224,6237] [2020-12-02 21:21:14,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 21:21:14,117 INFO L203 MainTranslator]: Completed pre-run [2020-12-02 21:21:14,201 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_0662b.c[6224,6237] [2020-12-02 21:21:14,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-02 21:21:14,252 INFO L208 MainTranslator]: Completed translation [2020-12-02 21:21:14,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:14 WrapperNode [2020-12-02 21:21:14,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 21:21:14,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 21:21:14,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 21:21:14,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 21:21:14,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:14" (1/1) ... [2020-12-02 21:21:14,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:14" (1/1) ... [2020-12-02 21:21:14,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 21:21:14,343 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 21:21:14,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 21:21:14,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 21:21:14,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:14" (1/1) ... [2020-12-02 21:21:14,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:14" (1/1) ... [2020-12-02 21:21:14,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:14" (1/1) ... [2020-12-02 21:21:14,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:14" (1/1) ... [2020-12-02 21:21:14,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:14" (1/1) ... [2020-12-02 21:21:14,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:14" (1/1) ... [2020-12-02 21:21:14,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:14" (1/1) ... [2020-12-02 21:21:14,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 21:21:14,517 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 21:21:14,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 21:21:14,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 21:21:14,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:14" (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 21:21:14,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-02 21:21:14,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-02 21:21:14,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 21:21:14,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 21:21:14,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-12-02 21:21:14,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 21:21:14,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 21:21:14,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 21:21:14,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 21:21:14,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 21:22:09,450 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 21:22:09,451 INFO L298 CfgBuilder]: Removed 44 assume(true) statements. [2020-12-02 21:22:09,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:22:09 BoogieIcfgContainer [2020-12-02 21:22:09,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 21:22:09,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 21:22:09,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 21:22:09,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 21:22:09,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:21:13" (1/3) ... [2020-12-02 21:22:09,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e04204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:22:09, skipping insertion in model container [2020-12-02 21:22:09,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:14" (2/3) ... [2020-12-02 21:22:09,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e04204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:22:09, skipping insertion in model container [2020-12-02 21:22:09,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:22:09" (3/3) ... [2020-12-02 21:22:09,466 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0662b.c [2020-12-02 21:22:09,491 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 21:22:09,500 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 21:22:09,514 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 21:22:09,555 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 21:22:09,555 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 21:22:09,555 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 21:22:09,555 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 21:22:09,555 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 21:22:09,555 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 21:22:09,555 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 21:22:09,556 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 21:22:09,576 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states. [2020-12-02 21:22:09,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 21:22:09,582 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:22:09,583 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 21:22:09,584 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:22:09,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:22:09,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1059427896, now seen corresponding path program 1 times [2020-12-02 21:22:09,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 21:22:09,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317355978] [2020-12-02 21:22:09,608 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 21:22:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 21:22:10,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 21:22:10,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 21:22:10,050 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 21:22:10,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 21:22:10,064 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 21:22:10,065 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [317355978] [2020-12-02 21:22:10,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 21:22:10,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 21:22:10,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953940896] [2020-12-02 21:22:10,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 21:22:10,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 21:22:10,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 21:22:10,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 21:22:10,102 INFO L87 Difference]: Start difference. First operand 115 states. Second operand 2 states. [2020-12-02 21:22:10,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 21:22:10,174 INFO L93 Difference]: Finished difference Result 227 states and 382 transitions. [2020-12-02 21:22:10,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 21:22:10,177 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-02 21:22:10,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 21:22:10,199 INFO L225 Difference]: With dead ends: 227 [2020-12-02 21:22:10,200 INFO L226 Difference]: Without dead ends: 111 [2020-12-02 21:22:10,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 21:22:10,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-12-02 21:22:10,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-12-02 21:22:10,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-12-02 21:22:10,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2020-12-02 21:22:10,307 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 11 [2020-12-02 21:22:10,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 21:22:10,309 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2020-12-02 21:22:10,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 21:22:10,309 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2020-12-02 21:22:10,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 21:22:10,312 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:22:10,312 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 21:22:10,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 21:22:10,527 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:22:10,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:22:10,530 INFO L82 PathProgramCache]: Analyzing trace with hash -7417919, now seen corresponding path program 1 times [2020-12-02 21:22:10,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 21:22:10,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163943073] [2020-12-02 21:22:10,531 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 21:22:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 21:22:11,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-02 21:22:11,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 21:22:11,771 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-02 21:22:12,020 INFO L173 IndexEqualityManager]: detected equality via solver [2020-12-02 21:22:12,213 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2020-12-02 21:22:12,220 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-02 21:22:12,741 WARN L197 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-02 21:22:12,742 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:22:12,750 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2020-12-02 21:22:12,751 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:36, output treesize:36 [2020-12-02 21:22:13,495 WARN L197 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-12-02 21:22:14,289 WARN L197 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-12-02 21:22:14,735 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-02 21:22:14,736 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:22:14,744 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 41 [2020-12-02 21:22:14,751 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 21:22:14,763 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-02 21:22:14,767 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-02 21:22:14,829 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_1], 2=[v_arrayElimCell_2]} [2020-12-02 21:22:15,816 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-02 21:22:15,817 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:22:15,817 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 41 [2020-12-02 21:22:15,821 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 21:22:15,824 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-02 21:22:15,826 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-02 21:22:15,878 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_3], 2=[v_arrayElimCell_4]} [2020-12-02 21:22:16,388 WARN L197 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-02 21:22:16,389 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:22:16,390 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 41 [2020-12-02 21:22:16,394 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 21:22:16,396 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-02 21:22:16,399 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-02 21:22:16,453 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_5], 2=[v_arrayElimCell_6]} [2020-12-02 21:22:17,227 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 21:22:17,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 21:22:18,117 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-02 21:22:18,971 WARN L197 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-12-02 21:22:18,982 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 21:22:21,883 WARN L197 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-12-02 21:22:23,202 WARN L197 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-12-02 21:22:23,224 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 21:22:23,736 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-02 21:22:23,736 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:22:23,737 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 57 [2020-12-02 21:22:24,174 WARN L197 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-02 21:22:24,175 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:22:24,176 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 57 [2020-12-02 21:22:24,180 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 21:22:24,182 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-12-02 21:22:24,183 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-12-02 21:22:24,248 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_7], 2=[v_arrayElimCell_8]} [2020-12-02 21:22:25,484 WARN L197 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-12-02 21:22:25,494 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 21:22:26,081 WARN L197 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-02 21:22:26,082 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:22:26,082 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 57 [2020-12-02 21:22:26,469 WARN L197 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-02 21:22:26,470 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:22:26,470 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 57 [2020-12-02 21:22:26,483 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 21:22:26,485 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-12-02 21:22:26,486 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-12-02 21:22:26,543 INFO L443 ElimStorePlain]: Different costs {0=[v_arrayElimCell_9], 2=[v_arrayElimCell_10]} [2020-12-02 21:22:27,728 WARN L197 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 22 [2020-12-02 21:22:27,784 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 21:22:27,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163943073] [2020-12-02 21:22:27,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 21:22:27,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2020-12-02 21:22:27,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718827824] [2020-12-02 21:22:27,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-02 21:22:27,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 21:22:27,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-02 21:22:27,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=149, Unknown=2, NotChecked=0, Total=182 [2020-12-02 21:22:27,789 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand 14 states. [2020-12-02 21:22:29,552 WARN L197 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-02 21:22:30,631 WARN L197 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-12-02 21:22:31,697 WARN L197 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-02 21:22:37,152 WARN L197 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2020-12-02 21:22:39,091 WARN L197 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 84 DAG size of output: 65 [2020-12-02 21:23:15,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 21:23:15,607 INFO L93 Difference]: Finished difference Result 182 states and 254 transitions. [2020-12-02 21:23:15,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-02 21:23:15,609 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 13 [2020-12-02 21:23:15,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 21:23:15,611 INFO L225 Difference]: With dead ends: 182 [2020-12-02 21:23:15,611 INFO L226 Difference]: Without dead ends: 109 [2020-12-02 21:23:15,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=83, Invalid=257, Unknown=2, NotChecked=0, Total=342 [2020-12-02 21:23:15,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-12-02 21:23:15,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 94. [2020-12-02 21:23:15,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-12-02 21:23:15,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 124 transitions. [2020-12-02 21:23:15,624 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 124 transitions. Word has length 13 [2020-12-02 21:23:15,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 21:23:15,625 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 124 transitions. [2020-12-02 21:23:15,625 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-02 21:23:15,625 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 124 transitions. [2020-12-02 21:23:15,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-02 21:23:15,626 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:23:15,626 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 21:23:15,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 21:23:15,840 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:23:15,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:23:15,842 INFO L82 PathProgramCache]: Analyzing trace with hash 1226339013, now seen corresponding path program 1 times [2020-12-02 21:23:15,843 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 21:23:15,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791682171] [2020-12-02 21:23:15,844 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 21:23:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 21:23:16,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-02 21:23:16,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 21:23:16,708 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-02 21:23:17,874 WARN L197 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-02 21:23:18,735 WARN L197 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-02 21:23:20,079 WARN L197 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 12 [2020-12-02 21:23:20,086 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 21:23:20,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 21:23:34,759 WARN L197 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 6 [2020-12-02 21:23:34,774 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 21:23:34,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791682171] [2020-12-02 21:23:34,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 21:23:34,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-12-02 21:23:34,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146615563] [2020-12-02 21:23:34,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-02 21:23:34,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 21:23:34,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-02 21:23:34,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-12-02 21:23:34,777 INFO L87 Difference]: Start difference. First operand 94 states and 124 transitions. Second operand 10 states. [2020-12-02 21:23:37,745 WARN L197 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2020-12-02 21:23:39,431 WARN L197 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2020-12-02 21:23:43,681 WARN L197 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2020-12-02 21:24:50,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 21:24:50,486 INFO L93 Difference]: Finished difference Result 115 states and 147 transitions. [2020-12-02 21:24:50,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 21:24:50,516 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-12-02 21:24:50,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 21:24:50,517 INFO L225 Difference]: With dead ends: 115 [2020-12-02 21:24:50,517 INFO L226 Difference]: Without dead ends: 109 [2020-12-02 21:24:50,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 23.4s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-12-02 21:24:50,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-12-02 21:24:50,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 92. [2020-12-02 21:24:50,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-12-02 21:24:50,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 121 transitions. [2020-12-02 21:24:50,529 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 121 transitions. Word has length 18 [2020-12-02 21:24:50,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 21:24:50,529 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 121 transitions. [2020-12-02 21:24:50,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-02 21:24:50,530 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 121 transitions. [2020-12-02 21:24:50,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-02 21:24:50,530 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:24:50,531 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] [2020-12-02 21:24:50,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-02 21:24:50,735 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:24:50,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:24:50,737 INFO L82 PathProgramCache]: Analyzing trace with hash 48409528, now seen corresponding path program 1 times [2020-12-02 21:24:50,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 21:24:50,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89356588] [2020-12-02 21:24:50,739 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 21:24:51,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 21:24:51,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-02 21:24:51,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 21:24:51,570 WARN L197 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-02 21:24:53,078 WARN L197 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 12 [2020-12-02 21:24:53,852 WARN L197 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-02 21:24:55,396 WARN L197 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 12 [2020-12-02 21:24:55,409 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 21:24:55,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 21:25:12,957 WARN L197 SmtUtils]: Spent 2.26 s on a formula simplification that was a NOOP. DAG size: 6 [2020-12-02 21:25:12,972 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 21:25:12,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [89356588] [2020-12-02 21:25:12,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 21:25:12,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-12-02 21:25:12,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704139280] [2020-12-02 21:25:12,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-02 21:25:12,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 21:25:12,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-02 21:25:12,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-12-02 21:25:12,979 INFO L87 Difference]: Start difference. First operand 92 states and 121 transitions. Second operand 10 states. [2020-12-02 21:25:16,535 WARN L197 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2020-12-02 21:25:20,457 WARN L197 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2020-12-02 21:25:27,827 WARN L197 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2020-12-02 21:26:24,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 21:26:24,211 INFO L93 Difference]: Finished difference Result 113 states and 144 transitions. [2020-12-02 21:26:24,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 21:26:24,439 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-12-02 21:26:24,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 21:26:24,440 INFO L225 Difference]: With dead ends: 113 [2020-12-02 21:26:24,440 INFO L226 Difference]: Without dead ends: 107 [2020-12-02 21:26:24,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 28.7s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-12-02 21:26:24,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-12-02 21:26:24,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 90. [2020-12-02 21:26:24,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-12-02 21:26:24,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 118 transitions. [2020-12-02 21:26:24,464 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 118 transitions. Word has length 20 [2020-12-02 21:26:24,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 21:26:24,464 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 118 transitions. [2020-12-02 21:26:24,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-02 21:26:24,464 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 118 transitions. [2020-12-02 21:26:24,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-02 21:26:24,465 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:26:24,465 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] [2020-12-02 21:26:24,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-02 21:26:24,674 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:26:24,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:26:24,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1297758981, now seen corresponding path program 1 times [2020-12-02 21:26:24,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 21:26:24,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769270317] [2020-12-02 21:26:24,677 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 21:26:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 21:26:25,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-02 21:26:25,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 21:26:25,805 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-02 21:26:29,237 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-02 21:26:29,729 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 21:26:29,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 21:26:30,643 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-02 21:26:31,408 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-02 21:26:32,382 WARN L197 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-12-02 21:26:33,411 WARN L197 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-12-02 21:26:35,647 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-12-02 21:26:35,721 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 21:26:35,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769270317] [2020-12-02 21:26:35,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 21:26:35,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 9] imperfect sequences [] total 14 [2020-12-02 21:26:35,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134449654] [2020-12-02 21:26:35,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-02 21:26:35,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 21:26:35,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-02 21:26:35,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=141, Unknown=1, NotChecked=0, Total=182 [2020-12-02 21:26:35,724 INFO L87 Difference]: Start difference. First operand 90 states and 118 transitions. Second operand 14 states. [2020-12-02 21:26:36,626 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-02 21:26:37,284 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-02 21:26:38,208 WARN L197 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-02 21:26:38,830 WARN L197 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-12-02 21:26:46,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 21:26:46,140 INFO L93 Difference]: Finished difference Result 113 states and 142 transitions. [2020-12-02 21:26:46,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-02 21:26:46,141 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 21 [2020-12-02 21:26:46,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 21:26:46,143 INFO L225 Difference]: With dead ends: 113 [2020-12-02 21:26:46,143 INFO L226 Difference]: Without dead ends: 109 [2020-12-02 21:26:46,146 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=90, Invalid=215, Unknown=1, NotChecked=0, Total=306 [2020-12-02 21:26:46,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-12-02 21:26:46,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 94. [2020-12-02 21:26:46,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-12-02 21:26:46,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 123 transitions. [2020-12-02 21:26:46,170 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 123 transitions. Word has length 21 [2020-12-02 21:26:46,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 21:26:46,171 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 123 transitions. [2020-12-02 21:26:46,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-02 21:26:46,171 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 123 transitions. [2020-12-02 21:26:46,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-02 21:26:46,173 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:26:46,174 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] [2020-12-02 21:26:46,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-02 21:26:46,388 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:26:46,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:26:46,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1257509315, now seen corresponding path program 1 times [2020-12-02 21:26:46,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 21:26:46,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057952003] [2020-12-02 21:26:46,391 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 21:26:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 21:26:46,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-02 21:26:46,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 21:26:47,417 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-02 21:26:47,452 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 21:26:47,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 21:26:48,822 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 21:26:48,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057952003] [2020-12-02 21:26:48,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 21:26:48,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-12-02 21:26:48,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092008432] [2020-12-02 21:26:48,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-02 21:26:48,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 21:26:48,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-02 21:26:48,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-02 21:26:48,826 INFO L87 Difference]: Start difference. First operand 94 states and 123 transitions. Second operand 8 states. [2020-12-02 21:26:49,337 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-02 21:26:49,679 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-02 21:26:52,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 21:26:52,543 INFO L93 Difference]: Finished difference Result 120 states and 150 transitions. [2020-12-02 21:26:52,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 21:26:52,759 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-12-02 21:26:52,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 21:26:52,760 INFO L225 Difference]: With dead ends: 120 [2020-12-02 21:26:52,760 INFO L226 Difference]: Without dead ends: 79 [2020-12-02 21:26:52,761 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-12-02 21:26:52,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-12-02 21:26:52,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 68. [2020-12-02 21:26:52,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-12-02 21:26:52,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 84 transitions. [2020-12-02 21:26:52,767 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 84 transitions. Word has length 22 [2020-12-02 21:26:52,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 21:26:52,767 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 84 transitions. [2020-12-02 21:26:52,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-02 21:26:52,768 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 84 transitions. [2020-12-02 21:26:52,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-02 21:26:52,769 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:26:52,769 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 21:26:52,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-02 21:26:52,970 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:26:52,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:26:52,971 INFO L82 PathProgramCache]: Analyzing trace with hash -394512707, now seen corresponding path program 1 times [2020-12-02 21:26:52,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 21:26:52,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748517277] [2020-12-02 21:26:52,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-12-02 21:26:53,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 21:26:53,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-02 21:26:53,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 21:26:54,324 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-02 21:26:56,735 WARN L197 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 30 DAG size of output: 30 [2020-12-02 21:26:56,743 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 21:26:56,744 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-02 21:26:57,315 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 21:26:57,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 21:26:57,955 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2020-12-02 21:26:58,717 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-02 21:27:00,575 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 21:27:00,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748517277] [2020-12-02 21:27:00,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 21:27:00,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 13 [2020-12-02 21:27:00,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750799428] [2020-12-02 21:27:00,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-02 21:27:00,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 21:27:00,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-02 21:27:00,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2020-12-02 21:27:00,579 INFO L87 Difference]: Start difference. First operand 68 states and 84 transitions. Second operand 13 states. [2020-12-02 21:27:01,390 WARN L197 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-02 21:27:02,164 WARN L197 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-02 21:27:03,822 WARN L197 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 35 DAG size of output: 23 [2020-12-02 21:27:04,904 WARN L197 SmtUtils]: Spent 892.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-12-02 21:27:09,343 WARN L197 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 36 DAG size of output: 24 [2020-12-02 21:27:10,781 WARN L197 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 39 DAG size of output: 21 [2020-12-02 21:27:10,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 21:27:10,782 INFO L93 Difference]: Finished difference Result 76 states and 90 transitions. [2020-12-02 21:27:10,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-02 21:27:10,783 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 24 [2020-12-02 21:27:10,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 21:27:10,783 INFO L225 Difference]: With dead ends: 76 [2020-12-02 21:27:10,783 INFO L226 Difference]: Without dead ends: 68 [2020-12-02 21:27:10,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2020-12-02 21:27:10,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-12-02 21:27:10,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 63. [2020-12-02 21:27:10,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-12-02 21:27:10,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2020-12-02 21:27:10,790 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 24 [2020-12-02 21:27:10,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 21:27:10,790 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2020-12-02 21:27:10,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-02 21:27:10,791 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2020-12-02 21:27:10,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-02 21:27:10,792 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 21:27:10,792 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, 1, 1, 1] [2020-12-02 21:27:10,997 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-02 21:27:10,998 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 21:27:10,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 21:27:10,999 INFO L82 PathProgramCache]: Analyzing trace with hash -2912589, now seen corresponding path program 1 times [2020-12-02 21:27:11,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 21:27:11,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [827892339] [2020-12-02 21:27:11,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-12-02 21:27:11,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 21:27:11,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-02 21:27:11,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 21:27:12,141 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 21:27:12,215 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-02 21:27:12,287 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:27:12,287 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-02 21:27:12,552 WARN L197 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-02 21:27:12,553 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:27:12,554 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 21:27:12,554 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:18 [2020-12-02 21:27:12,926 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-02 21:27:13,405 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-02 21:27:13,439 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 21:27:13,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 21:27:14,505 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 21:27:14,573 INFO L547 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-12-02 21:27:14,636 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:27:14,637 INFO L547 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-12-02 21:27:14,837 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-02 21:27:14,838 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-02 21:27:14,838 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 21:27:14,839 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:31, output treesize:20 [2020-12-02 21:27:16,189 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 21:27:16,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [827892339] [2020-12-02 21:27:16,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 21:27:16,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-12-02 21:27:16,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591364305] [2020-12-02 21:27:16,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-02 21:27:16,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 21:27:16,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-02 21:27:16,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-12-02 21:27:16,192 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand 10 states. [2020-12-02 21:27:16,704 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-02 21:27:17,164 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-02 21:27:17,979 WARN L197 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2020-12-02 21:27:18,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 21:27:18,056 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2020-12-02 21:27:18,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 21:27:18,057 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-12-02 21:27:18,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 21:27:18,058 INFO L225 Difference]: With dead ends: 63 [2020-12-02 21:27:18,058 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 21:27:18,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-12-02 21:27:18,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 21:27:18,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 21:27:18,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 21:27:18,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 21:27:18,060 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2020-12-02 21:27:18,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 21:27:18,060 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 21:27:18,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-02 21:27:18,060 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 21:27:18,060 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 21:27:18,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-12-02 21:27:18,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-02 21:27:20,075 WARN L197 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 83 DAG size of output: 56 [2020-12-02 21:27:20,877 WARN L197 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-02 21:27:21,427 WARN L197 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-02 21:27:21,756 INFO L265 CegarLoopResult]: At program point L267(lines 246 268) the Hoare annotation is: true [2020-12-02 21:27:21,756 INFO L262 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-12-02 21:27:21,757 INFO L262 CegarLoopResult]: For program point L70-1(lines 70 74) no Hoare annotation was computed. [2020-12-02 21:27:21,757 INFO L258 CegarLoopResult]: At program point L70-2(lines 70 74) the Hoare annotation is: false [2020-12-02 21:27:21,757 INFO L262 CegarLoopResult]: For program point L70-3(lines 70 74) no Hoare annotation was computed. [2020-12-02 21:27:21,757 INFO L262 CegarLoopResult]: For program point L70-5(lines 70 74) no Hoare annotation was computed. [2020-12-02 21:27:21,757 INFO L258 CegarLoopResult]: At program point L70-6(lines 70 74) the Hoare annotation is: false [2020-12-02 21:27:21,757 INFO L262 CegarLoopResult]: For program point L70-7(lines 70 74) no Hoare annotation was computed. [2020-12-02 21:27:21,757 INFO L262 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-12-02 21:27:21,757 INFO L262 CegarLoopResult]: For program point L170(lines 170 180) no Hoare annotation was computed. [2020-12-02 21:27:21,757 INFO L262 CegarLoopResult]: For program point L170-2(lines 144 244) no Hoare annotation was computed. [2020-12-02 21:27:21,757 INFO L262 CegarLoopResult]: For program point L171(lines 171 179) no Hoare annotation was computed. [2020-12-02 21:27:21,758 INFO L262 CegarLoopResult]: For program point L205(line 205) no Hoare annotation was computed. [2020-12-02 21:27:21,758 INFO L262 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-12-02 21:27:21,758 INFO L262 CegarLoopResult]: For program point L172-2(line 172) no Hoare annotation was computed. [2020-12-02 21:27:21,758 INFO L262 CegarLoopResult]: For program point L239(line 239) no Hoare annotation was computed. [2020-12-02 21:27:21,758 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-02 21:27:21,758 INFO L262 CegarLoopResult]: For program point L107(lines 107 113) no Hoare annotation was computed. [2020-12-02 21:27:21,758 INFO L262 CegarLoopResult]: For program point L107-2(lines 90 115) no Hoare annotation was computed. [2020-12-02 21:27:21,758 INFO L262 CegarLoopResult]: For program point L107-3(lines 107 113) no Hoare annotation was computed. [2020-12-02 21:27:21,758 INFO L262 CegarLoopResult]: For program point L107-5(lines 90 115) no Hoare annotation was computed. [2020-12-02 21:27:21,758 INFO L262 CegarLoopResult]: For program point L241(line 241) no Hoare annotation was computed. [2020-12-02 21:27:21,758 INFO L262 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-12-02 21:27:21,758 INFO L262 CegarLoopResult]: For program point L76(lines 76 89) no Hoare annotation was computed. [2020-12-02 21:27:21,758 INFO L262 CegarLoopResult]: For program point L76-1(lines 76 89) no Hoare annotation was computed. [2020-12-02 21:27:21,759 INFO L262 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-12-02 21:27:21,759 INFO L258 CegarLoopResult]: At program point L144(lines 144 244) the Hoare annotation is: (and (= (fp.sub roundNearestTiesToEven (fp.neg ~pi_o_2~0) ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0))) |ULTIMATE.start___ieee754_atan2_#res|) (= currentRoundingMode roundNearestTiesToEven) (= ~pi_o_2~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 785398163397448279.0 500000000000000000.0))) (= ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) ~tiny_atan2~0)) [2020-12-02 21:27:21,759 INFO L262 CegarLoopResult]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2020-12-02 21:27:21,759 INFO L258 CegarLoopResult]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2020-12-02 21:27:21,759 INFO L262 CegarLoopResult]: For program point L78-3(lines 76 89) no Hoare annotation was computed. [2020-12-02 21:27:21,759 INFO L262 CegarLoopResult]: For program point L78-5(lines 78 82) no Hoare annotation was computed. [2020-12-02 21:27:21,759 INFO L258 CegarLoopResult]: At program point L78-6(lines 78 82) the Hoare annotation is: false [2020-12-02 21:27:21,759 INFO L262 CegarLoopResult]: For program point L78-7(lines 76 89) no Hoare annotation was computed. [2020-12-02 21:27:21,760 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-02 21:27:21,760 INFO L262 CegarLoopResult]: For program point L212-2(line 212) no Hoare annotation was computed. [2020-12-02 21:27:21,760 INFO L262 CegarLoopResult]: For program point L215(lines 215 220) no Hoare annotation was computed. [2020-12-02 21:27:21,760 INFO L262 CegarLoopResult]: For program point L149-1(lines 149 154) no Hoare annotation was computed. [2020-12-02 21:27:21,760 INFO L258 CegarLoopResult]: At program point L149-2(lines 149 154) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_atan2_~x (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven) (= ~pi_o_2~0 ((_ to_fp 11 53) currentRoundingMode (/ 785398163397448279.0 500000000000000000.0))) (fp.lt ULTIMATE.start___ieee754_atan2_~y (_ +zero 11 53)) (= ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (= ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) ~tiny_atan2~0)) [2020-12-02 21:27:21,760 INFO L262 CegarLoopResult]: For program point L149-3(lines 149 154) no Hoare annotation was computed. [2020-12-02 21:27:21,760 INFO L262 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-12-02 21:27:21,760 INFO L262 CegarLoopResult]: For program point L183-2(line 183) no Hoare annotation was computed. [2020-12-02 21:27:21,760 INFO L262 CegarLoopResult]: For program point L217(lines 217 220) no Hoare annotation was computed. [2020-12-02 21:27:21,760 INFO L262 CegarLoopResult]: For program point L217-2(lines 215 220) no Hoare annotation was computed. [2020-12-02 21:27:21,761 INFO L262 CegarLoopResult]: For program point L85(lines 85 88) no Hoare annotation was computed. [2020-12-02 21:27:21,761 INFO L262 CegarLoopResult]: For program point L85-1(lines 85 88) no Hoare annotation was computed. [2020-12-02 21:27:21,761 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-02 21:27:21,761 INFO L262 CegarLoopResult]: For program point L185(lines 185 209) no Hoare annotation was computed. [2020-12-02 21:27:21,761 INFO L262 CegarLoopResult]: For program point L185-1(lines 144 244) no Hoare annotation was computed. [2020-12-02 21:27:21,761 INFO L262 CegarLoopResult]: For program point L186(lines 186 208) no Hoare annotation was computed. [2020-12-02 21:27:21,761 INFO L262 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2020-12-02 21:27:21,761 INFO L258 CegarLoopResult]: At program point L21-2(lines 21 25) the Hoare annotation is: false [2020-12-02 21:27:21,761 INFO L262 CegarLoopResult]: For program point L21-5(lines 21 25) no Hoare annotation was computed. [2020-12-02 21:27:21,761 INFO L258 CegarLoopResult]: At program point L21-6(lines 21 25) the Hoare annotation is: false [2020-12-02 21:27:21,761 INFO L262 CegarLoopResult]: For program point L21-9(lines 21 25) no Hoare annotation was computed. [2020-12-02 21:27:21,761 INFO L258 CegarLoopResult]: At program point L21-10(lines 21 25) the Hoare annotation is: false [2020-12-02 21:27:21,761 INFO L262 CegarLoopResult]: For program point L187(lines 187 196) no Hoare annotation was computed. [2020-12-02 21:27:21,762 INFO L262 CegarLoopResult]: For program point L221(lines 221 243) no Hoare annotation was computed. [2020-12-02 21:27:21,762 INFO L262 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-02 21:27:21,762 INFO L262 CegarLoopResult]: For program point L222(line 222) no Hoare annotation was computed. [2020-12-02 21:27:21,762 INFO L262 CegarLoopResult]: For program point L156-1(lines 156 161) no Hoare annotation was computed. [2020-12-02 21:27:21,762 INFO L258 CegarLoopResult]: At program point L156-2(lines 156 161) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_atan2_~x (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven) (= ~pi_o_2~0 ((_ to_fp 11 53) currentRoundingMode (/ 785398163397448279.0 500000000000000000.0))) (fp.lt ULTIMATE.start___ieee754_atan2_~y (_ +zero 11 53)) (exists ((|v_skolemized_q#valueAsBitvector_36| (_ BitVec 64))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_36|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_36|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_36|))) (= ULTIMATE.start___ieee754_atan2_~ix~1 (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_36|))) (= ULTIMATE.start___ieee754_atan2_~lx~0 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_36|)))) (exists ((|v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_31| (_ BitVec 64))) (let ((.cse1 (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5|))) (let ((.cse0 (select .cse1 (_ bv4 32)))) (and (= .cse0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_31|)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_31|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_31|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_31|)) (_ +zero 11 53)) (= ULTIMATE.start___ieee754_atan2_~hx~1 .cse0) (= (select .cse1 (_ bv0 32)) ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_31|)))))) (= ULTIMATE.start_main_~x~0 (_ +zero 11 53)) (= ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) ~tiny_atan2~0)) [2020-12-02 21:27:21,762 INFO L262 CegarLoopResult]: For program point L90(lines 90 115) no Hoare annotation was computed. [2020-12-02 21:27:21,762 INFO L262 CegarLoopResult]: For program point L156-3(lines 156 161) no Hoare annotation was computed. [2020-12-02 21:27:21,763 INFO L262 CegarLoopResult]: For program point L90-2(lines 90 115) no Hoare annotation was computed. [2020-12-02 21:27:21,763 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-02 21:27:21,763 INFO L262 CegarLoopResult]: For program point L256(lines 256 265) no Hoare annotation was computed. [2020-12-02 21:27:21,763 INFO L262 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-12-02 21:27:21,763 INFO L262 CegarLoopResult]: For program point L256-2(lines 256 265) no Hoare annotation was computed. [2020-12-02 21:27:21,763 INFO L262 CegarLoopResult]: For program point L91(lines 91 94) no Hoare annotation was computed. [2020-12-02 21:27:21,763 INFO L262 CegarLoopResult]: For program point L91-2(lines 91 94) no Hoare annotation was computed. [2020-12-02 21:27:21,763 INFO L262 CegarLoopResult]: For program point L91-3(lines 91 94) no Hoare annotation was computed. [2020-12-02 21:27:21,763 INFO L262 CegarLoopResult]: For program point L91-5(lines 91 94) no Hoare annotation was computed. [2020-12-02 21:27:21,763 INFO L262 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-12-02 21:27:21,763 INFO L262 CegarLoopResult]: For program point L92(lines 92 93) no Hoare annotation was computed. [2020-12-02 21:27:21,763 INFO L262 CegarLoopResult]: For program point L92-1(lines 92 93) no Hoare annotation was computed. [2020-12-02 21:27:21,764 INFO L262 CegarLoopResult]: For program point L26(lines 26 31) no Hoare annotation was computed. [2020-12-02 21:27:21,764 INFO L262 CegarLoopResult]: For program point L26-1(lines 19 33) no Hoare annotation was computed. [2020-12-02 21:27:21,764 INFO L262 CegarLoopResult]: For program point L26-2(lines 26 31) no Hoare annotation was computed. [2020-12-02 21:27:21,764 INFO L262 CegarLoopResult]: For program point L26-3(lines 26 31) no Hoare annotation was computed. [2020-12-02 21:27:21,764 INFO L262 CegarLoopResult]: For program point L26-4(lines 19 33) no Hoare annotation was computed. [2020-12-02 21:27:21,764 INFO L262 CegarLoopResult]: For program point L26-5(lines 26 31) no Hoare annotation was computed. [2020-12-02 21:27:21,764 INFO L262 CegarLoopResult]: For program point L26-6(lines 26 31) no Hoare annotation was computed. [2020-12-02 21:27:21,764 INFO L262 CegarLoopResult]: For program point L26-7(lines 19 33) no Hoare annotation was computed. [2020-12-02 21:27:21,764 INFO L262 CegarLoopResult]: For program point L26-8(lines 26 31) no Hoare annotation was computed. [2020-12-02 21:27:21,764 INFO L262 CegarLoopResult]: For program point L192(line 192) no Hoare annotation was computed. [2020-12-02 21:27:21,764 INFO L262 CegarLoopResult]: For program point L226-1(lines 226 230) no Hoare annotation was computed. [2020-12-02 21:27:21,765 INFO L258 CegarLoopResult]: At program point L226-2(lines 226 230) the Hoare annotation is: false [2020-12-02 21:27:21,765 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-02 21:27:21,765 INFO L262 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-12-02 21:27:21,765 INFO L262 CegarLoopResult]: For program point L128(lines 128 133) no Hoare annotation was computed. [2020-12-02 21:27:21,765 INFO L262 CegarLoopResult]: For program point L128-1(lines 128 133) no Hoare annotation was computed. [2020-12-02 21:27:21,765 INFO L262 CegarLoopResult]: For program point L261(lines 261 264) no Hoare annotation was computed. [2020-12-02 21:27:21,765 INFO L262 CegarLoopResult]: For program point L262(line 262) no Hoare annotation was computed. [2020-12-02 21:27:21,765 INFO L262 CegarLoopResult]: For program point L163(lines 163 165) no Hoare annotation was computed. [2020-12-02 21:27:21,765 INFO L262 CegarLoopResult]: For program point L98(lines 98 114) no Hoare annotation was computed. [2020-12-02 21:27:21,765 INFO L262 CegarLoopResult]: For program point L98-1(lines 98 114) no Hoare annotation was computed. [2020-12-02 21:27:21,765 INFO L258 CegarLoopResult]: At program point L32(lines 19 33) the Hoare annotation is: false [2020-12-02 21:27:21,766 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-02 21:27:21,766 INFO L258 CegarLoopResult]: At program point L32-1(lines 19 33) the Hoare annotation is: false [2020-12-02 21:27:21,766 INFO L258 CegarLoopResult]: At program point L32-2(lines 19 33) the Hoare annotation is: false [2020-12-02 21:27:21,766 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 262) no Hoare annotation was computed. [2020-12-02 21:27:21,766 INFO L262 CegarLoopResult]: For program point L231(lines 231 236) no Hoare annotation was computed. [2020-12-02 21:27:21,766 INFO L262 CegarLoopResult]: For program point L198(lines 198 207) no Hoare annotation was computed. [2020-12-02 21:27:21,766 INFO L262 CegarLoopResult]: For program point L231-1(lines 224 237) no Hoare annotation was computed. [2020-12-02 21:27:21,766 INFO L262 CegarLoopResult]: For program point L231-2(lines 231 236) no Hoare annotation was computed. [2020-12-02 21:27:21,766 INFO L262 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-12-02 21:27:21,766 INFO L262 CegarLoopResult]: For program point L99(lines 99 105) no Hoare annotation was computed. [2020-12-02 21:27:21,767 INFO L262 CegarLoopResult]: For program point L132-2(line 132) no Hoare annotation was computed. [2020-12-02 21:27:21,767 INFO L258 CegarLoopResult]: At program point L132-3(lines 66 134) the Hoare annotation is: false [2020-12-02 21:27:21,767 INFO L262 CegarLoopResult]: For program point L99-3(lines 99 105) no Hoare annotation was computed. [2020-12-02 21:27:21,767 INFO L262 CegarLoopResult]: For program point L132-4(line 132) no Hoare annotation was computed. [2020-12-02 21:27:21,767 INFO L262 CegarLoopResult]: For program point L132-6(line 132) no Hoare annotation was computed. [2020-12-02 21:27:21,767 INFO L258 CegarLoopResult]: At program point L132-7(lines 66 134) the Hoare annotation is: false [2020-12-02 21:27:21,767 INFO L262 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-12-02 21:27:21,767 INFO L262 CegarLoopResult]: For program point L166(lines 166 167) no Hoare annotation was computed. [2020-12-02 21:27:21,786 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:21,787 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] [2020-12-02 21:27:21,787 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] [2020-12-02 21:27:21,788 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] [2020-12-02 21:27:21,788 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] [2020-12-02 21:27:21,788 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] [2020-12-02 21:27:21,788 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5,QUANTIFIED] [2020-12-02 21:27:21,789 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] [2020-12-02 21:27:21,789 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] [2020-12-02 21:27:21,789 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] [2020-12-02 21:27:21,789 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] [2020-12-02 21:27:21,790 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5,QUANTIFIED] [2020-12-02 21:27:21,790 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5,QUANTIFIED] [2020-12-02 21:27:21,790 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] [2020-12-02 21:27:21,795 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:21,795 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] [2020-12-02 21:27:21,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] [2020-12-02 21:27:21,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] [2020-12-02 21:27:21,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] [2020-12-02 21:27:21,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] [2020-12-02 21:27:21,797 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5,QUANTIFIED] [2020-12-02 21:27:21,797 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] [2020-12-02 21:27:21,797 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] [2020-12-02 21:27:21,797 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] [2020-12-02 21:27:21,797 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] [2020-12-02 21:27:21,798 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5,QUANTIFIED] [2020-12-02 21:27:21,798 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5,QUANTIFIED] [2020-12-02 21:27:21,798 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] [2020-12-02 21:27:21,800 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:21,800 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:21,801 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:21,801 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:21,802 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:21,802 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:21,802 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:21,802 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:21,804 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:21,804 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:21,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 09:27:21 BoogieIcfgContainer [2020-12-02 21:27:21,808 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 21:27:21,808 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 21:27:21,809 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 21:27:21,809 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 21:27:21,810 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:22:09" (3/4) ... [2020-12-02 21:27:21,814 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 21:27:21,835 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2020-12-02 21:27:21,836 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-02 21:27:21,837 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 21:27:21,838 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 21:27:21,892 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((x == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && pi_o_2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 785398163397448279/500000000000000000)) && ~fp.lt~DOUBLE(y, ~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_36 : bv64 :: (~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_36[63:63], v_skolemized_q#valueAsBitvector_36[62:52], v_skolemized_q#valueAsBitvector_36[51:0]) && ix == ~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_36[63:32])) && lx == v_skolemized_q#valueAsBitvector_36[31:0])) && (\exists v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5 : bv32, v_skolemized_q#valueAsBitvector_31 : bv64 :: ((unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5][4bv32] == v_skolemized_q#valueAsBitvector_31[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_31[63:63], v_skolemized_q#valueAsBitvector_31[62:52], v_skolemized_q#valueAsBitvector_31[51:0]) == ~Pluszero~LONGDOUBLE()) && hx == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5][4bv32]) && unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5][0bv32] == v_skolemized_q#valueAsBitvector_31[31:0])) && x == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2 [2020-12-02 21:27:21,893 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(pi_o_2), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000)) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && pi_o_2 == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 785398163397448279/500000000000000000)) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2 [2020-12-02 21:27:21,984 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 21:27:21,984 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 21:27:21,985 INFO L168 Benchmark]: Toolchain (without parser) took 368291.63 ms. Allocated memory was 41.9 MB in the beginning and 67.1 MB in the end (delta: 25.2 MB). Free memory was 18.6 MB in the beginning and 39.5 MB in the end (delta: -20.9 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. [2020-12-02 21:27:21,986 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 41.9 MB. Free memory was 19.8 MB in the beginning and 19.7 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 21:27:21,986 INFO L168 Benchmark]: CACSL2BoogieTranslator took 557.02 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.3 MB in the beginning and 35.1 MB in the end (delta: -16.8 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2020-12-02 21:27:21,987 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.45 ms. Allocated memory is still 52.4 MB. Free memory was 34.9 MB in the beginning and 31.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-02 21:27:21,987 INFO L168 Benchmark]: Boogie Preprocessor took 172.42 ms. Allocated memory is still 52.4 MB. Free memory was 31.4 MB in the beginning and 27.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 21:27:21,988 INFO L168 Benchmark]: RCFGBuilder took 54939.00 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 27.9 MB in the beginning and 36.0 MB in the end (delta: -8.0 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2020-12-02 21:27:21,988 INFO L168 Benchmark]: TraceAbstraction took 312350.21 ms. Allocated memory is still 67.1 MB. Free memory was 35.6 MB in the beginning and 18.8 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2020-12-02 21:27:21,989 INFO L168 Benchmark]: Witness Printer took 175.82 ms. Allocated memory is still 67.1 MB. Free memory was 18.8 MB in the beginning and 39.5 MB in the end (delta: -20.7 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2020-12-02 21:27:21,991 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 41.9 MB. Free memory was 19.8 MB in the beginning and 19.7 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 557.02 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.3 MB in the beginning and 35.1 MB in the end (delta: -16.8 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.45 ms. Allocated memory is still 52.4 MB. Free memory was 34.9 MB in the beginning and 31.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 172.42 ms. Allocated memory is still 52.4 MB. Free memory was 31.4 MB in the beginning and 27.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 54939.00 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 27.9 MB in the beginning and 36.0 MB in the end (delta: -8.0 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 312350.21 ms. Allocated memory is still 67.1 MB. Free memory was 35.6 MB in the beginning and 18.8 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. * Witness Printer took 175.82 ms. Allocated memory is still 67.1 MB. Free memory was 18.8 MB in the beginning and 39.5 MB in the end (delta: -20.7 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - 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[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] - 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[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 262]: 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: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 156]: Loop Invariant [2020-12-02 21:27:22,004 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:22,004 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] [2020-12-02 21:27:22,004 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] [2020-12-02 21:27:22,005 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] [2020-12-02 21:27:22,005 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] [2020-12-02 21:27:22,005 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] [2020-12-02 21:27:22,005 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5,QUANTIFIED] [2020-12-02 21:27:22,005 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] [2020-12-02 21:27:22,006 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] [2020-12-02 21:27:22,006 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] [2020-12-02 21:27:22,006 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] [2020-12-02 21:27:22,006 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5,QUANTIFIED] [2020-12-02 21:27:22,006 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5,QUANTIFIED] [2020-12-02 21:27:22,007 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] [2020-12-02 21:27:22,008 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:22,008 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] [2020-12-02 21:27:22,008 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] [2020-12-02 21:27:22,009 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] [2020-12-02 21:27:22,009 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] [2020-12-02 21:27:22,009 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_36,QUANTIFIED] [2020-12-02 21:27:22,009 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5,QUANTIFIED] [2020-12-02 21:27:22,009 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] [2020-12-02 21:27:22,010 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] [2020-12-02 21:27:22,010 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] [2020-12-02 21:27:22,010 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] [2020-12-02 21:27:22,010 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5,QUANTIFIED] [2020-12-02 21:27:22,010 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5,QUANTIFIED] [2020-12-02 21:27:22,011 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_31,QUANTIFIED] Derived loop invariant: ((((((x == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && pi_o_2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 785398163397448279/500000000000000000)) && ~fp.lt~DOUBLE(y, ~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_36 : bv64 :: (~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_36[63:63], v_skolemized_q#valueAsBitvector_36[62:52], v_skolemized_q#valueAsBitvector_36[51:0]) && ix == ~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_36[63:32])) && lx == v_skolemized_q#valueAsBitvector_36[31:0])) && (\exists v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5 : bv32, v_skolemized_q#valueAsBitvector_31 : bv64 :: ((unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5][4bv32] == v_skolemized_q#valueAsBitvector_31[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_31[63:63], v_skolemized_q#valueAsBitvector_31[62:52], v_skolemized_q#valueAsBitvector_31[51:0]) == ~Pluszero~LONGDOUBLE()) && hx == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5][4bv32]) && unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2_~#ew_u~0.base_5][0bv32] == v_skolemized_q#valueAsBitvector_31[31:0])) && x == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2 - InvariantResult [Line: 144]: Loop Invariant [2020-12-02 21:27:22,012 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:22,012 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:22,012 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:22,013 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:22,013 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:22,013 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:22,014 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:22,014 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(pi_o_2), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000)) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && pi_o_2 == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 785398163397448279/500000000000000000)) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 149]: Loop Invariant [2020-12-02 21:27:22,015 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 21:27:22,016 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((x == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && pi_o_2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 785398163397448279/500000000000000000)) && ~fp.lt~DOUBLE(y, ~Pluszero~LONGDOUBLE())) && x == ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) == tiny_atan2 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 246]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 115 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 308.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 221.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 735 SDtfs, 1602 SDslu, 2903 SDs, 0 SdLazy, 384 SolverSat, 39 SolverUnsat, 55 SolverUnknown, 0 SolverNotchecked, 182.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 322 GetRequests, 228 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 101.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=115occurred 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: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 80 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 17 PreInvPairs, 21 NumberOfFragments, 138 HoareAnnotationTreeSize, 17 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 85 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 81.2s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 296 ConstructedInterpolants, 82 QuantifiedInterpolants, 63582 SizeOfPredicates, 64 NumberOfNonLiveVariables, 1151 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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...