./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0684b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0684b.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 605b3a8a7de37bea51c68bab94a94914ddbd465d ............................................................................................................................................................................................................................................................................................................................................................................................. 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_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_0684b.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 605b3a8a7de37bea51c68bab94a94914ddbd465d ................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:29:29,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:29:29,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:29:29,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:29:29,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:29:29,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:29:29,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:29:29,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:29:29,771 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:29:29,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:29:29,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:29:29,775 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:29:29,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:29:29,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:29:29,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:29:29,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:29:29,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:29:29,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:29:29,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:29:29,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:29:29,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:29:29,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:29:29,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:29:29,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:29:29,800 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:29:29,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:29:29,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:29:29,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:29:29,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:29:29,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:29:29,804 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:29:29,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:29:29,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:29:29,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:29:29,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:29:29,807 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:29:29,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:29:29,808 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:29:29,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:29:29,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:29:29,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:29:29,811 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:29:29,834 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:29:29,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:29:29,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:29:29,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:29:29,837 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:29:29,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:29:29,837 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:29:29,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:29:29,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:29:29,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:29:29,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:29:29,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:29:29,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:29:29,839 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:29:29,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:29:29,840 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:29:29,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:29:29,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:29:29,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:29:29,841 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:29:29,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:29:29,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:29:29,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:29:29,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:29:29,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:29:29,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:29:29,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:29:29,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:29:29,843 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:29:29,843 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 605b3a8a7de37bea51c68bab94a94914ddbd465d [2020-10-20 00:29:30,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:29:30,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:29:30,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:29:30,072 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:29:30,072 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:29:30,073 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0684b.c [2020-10-20 00:29:30,137 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdfd3f1bc/cb7bbffaff0244a1b334a157ff4ed370/FLAGe65da3112 [2020-10-20 00:29:30,694 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:29:30,695 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0684b.c [2020-10-20 00:29:30,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdfd3f1bc/cb7bbffaff0244a1b334a157ff4ed370/FLAGe65da3112 [2020-10-20 00:29:30,996 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdfd3f1bc/cb7bbffaff0244a1b334a157ff4ed370 [2020-10-20 00:29:30,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:29:31,006 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:29:31,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:29:31,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:29:31,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:29:31,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:29:30" (1/1) ... [2020-10-20 00:29:31,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@572de337 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:31, skipping insertion in model container [2020-10-20 00:29:31,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:29:30" (1/1) ... [2020-10-20 00:29:31,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:29:31,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:29:31,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:29:31,403 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:29:31,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:29:31,493 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:29:31,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:31 WrapperNode [2020-10-20 00:29:31,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:29:31,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:29:31,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:29:31,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:29:31,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:31" (1/1) ... [2020-10-20 00:29:31,521 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:31" (1/1) ... [2020-10-20 00:29:31,595 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:29:31,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:29:31,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:29:31,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:29:31,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:31" (1/1) ... [2020-10-20 00:29:31,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:31" (1/1) ... [2020-10-20 00:29:31,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:31" (1/1) ... [2020-10-20 00:29:31,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:31" (1/1) ... [2020-10-20 00:29:31,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:31" (1/1) ... [2020-10-20 00:29:31,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:31" (1/1) ... [2020-10-20 00:29:31,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:31" (1/1) ... [2020-10-20 00:29:31,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:29:31,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:29:31,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:29:31,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:29:31,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:29:31,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:29:31,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:29:31,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-20 00:29:31,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:29:31,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-20 00:29:31,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:29:31,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:29:31,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 00:29:31,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-20 00:29:31,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:29:32,676 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:29:32,676 INFO L298 CfgBuilder]: Removed 54 assume(true) statements. [2020-10-20 00:29:32,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:29:32 BoogieIcfgContainer [2020-10-20 00:29:32,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:29:32,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:29:32,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:29:32,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:29:32,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:29:30" (1/3) ... [2020-10-20 00:29:32,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23067a67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:29:32, skipping insertion in model container [2020-10-20 00:29:32,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:31" (2/3) ... [2020-10-20 00:29:32,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23067a67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:29:32, skipping insertion in model container [2020-10-20 00:29:32,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:29:32" (3/3) ... [2020-10-20 00:29:32,691 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684b.c [2020-10-20 00:29:32,703 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:29:32,714 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:29:32,725 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:29:32,753 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:29:32,753 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:29:32,753 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:29:32,754 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:29:32,754 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:29:32,754 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:29:32,754 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:29:32,754 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:29:32,775 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2020-10-20 00:29:32,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 00:29:32,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:29:32,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:29:32,784 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:29:32,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:29:32,790 INFO L82 PathProgramCache]: Analyzing trace with hash -617567418, now seen corresponding path program 1 times [2020-10-20 00:29:32,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:29:32,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156348560] [2020-10-20 00:29:32,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:29:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:29:32,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:29:32,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156348560] [2020-10-20 00:29:32,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:29:32,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:29:32,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866147587] [2020-10-20 00:29:32,992 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:29:32,992 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:29:33,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:29:33,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:29:33,011 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 2 states. [2020-10-20 00:29:33,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:29:33,048 INFO L93 Difference]: Finished difference Result 247 states and 413 transitions. [2020-10-20 00:29:33,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:29:33,050 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2020-10-20 00:29:33,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:29:33,064 INFO L225 Difference]: With dead ends: 247 [2020-10-20 00:29:33,065 INFO L226 Difference]: Without dead ends: 120 [2020-10-20 00:29:33,069 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:29:33,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-20 00:29:33,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-10-20 00:29:33,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-20 00:29:33,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 169 transitions. [2020-10-20 00:29:33,121 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 169 transitions. Word has length 15 [2020-10-20 00:29:33,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:29:33,122 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 169 transitions. [2020-10-20 00:29:33,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:29:33,122 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 169 transitions. [2020-10-20 00:29:33,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 00:29:33,123 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:29:33,123 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:29:33,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:29:33,124 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:29:33,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:29:33,125 INFO L82 PathProgramCache]: Analyzing trace with hash -397782484, now seen corresponding path program 1 times [2020-10-20 00:29:33,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:29:33,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713498702] [2020-10-20 00:29:33,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:29:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:29:33,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:29:33,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713498702] [2020-10-20 00:29:33,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:29:33,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 00:29:33,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858710761] [2020-10-20 00:29:33,263 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 00:29:33,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:29:33,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 00:29:33,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 00:29:33,264 INFO L87 Difference]: Start difference. First operand 120 states and 169 transitions. Second operand 3 states. [2020-10-20 00:29:33,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:29:33,330 INFO L93 Difference]: Finished difference Result 229 states and 326 transitions. [2020-10-20 00:29:33,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 00:29:33,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-10-20 00:29:33,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:29:33,337 INFO L225 Difference]: With dead ends: 229 [2020-10-20 00:29:33,338 INFO L226 Difference]: Without dead ends: 120 [2020-10-20 00:29:33,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 00:29:33,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-20 00:29:33,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-10-20 00:29:33,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-20 00:29:33,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 168 transitions. [2020-10-20 00:29:33,364 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 168 transitions. Word has length 18 [2020-10-20 00:29:33,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:29:33,365 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 168 transitions. [2020-10-20 00:29:33,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 00:29:33,365 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 168 transitions. [2020-10-20 00:29:33,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 00:29:33,367 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:29:33,368 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] [2020-10-20 00:29:33,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:29:33,369 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:29:33,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:29:33,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1006577033, now seen corresponding path program 1 times [2020-10-20 00:29:33,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:29:33,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801811391] [2020-10-20 00:29:33,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:29:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:29:33,603 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:29:33,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:29:33,744 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:29:33,802 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:29:33,805 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:29:33,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 00:29:33,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:29:33 BoogieIcfgContainer [2020-10-20 00:29:33,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:29:33,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:29:33,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:29:33,890 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:29:33,891 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:29:32" (3/4) ... [2020-10-20 00:29:33,901 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:29:33,901 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:29:33,903 INFO L168 Benchmark]: Toolchain (without parser) took 2901.85 ms. Allocated memory was 35.1 MB in the beginning and 57.7 MB in the end (delta: 22.5 MB). Free memory was 16.2 MB in the beginning and 9.0 MB in the end (delta: 7.2 MB). Peak memory consumption was 29.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:29:33,904 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 33.6 MB. Free memory was 11.0 MB in the beginning and 10.9 MB in the end (delta: 45.5 kB). Peak memory consumption was 45.5 kB. Max. memory is 14.3 GB. [2020-10-20 00:29:33,906 INFO L168 Benchmark]: CACSL2BoogieTranslator took 486.67 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 15.3 MB in the beginning and 18.6 MB in the end (delta: -3.3 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:29:33,907 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.66 ms. Allocated memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Free memory was 18.6 MB in the beginning and 27.0 MB in the end (delta: -8.4 MB). Peak memory consumption was 8.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:29:33,919 INFO L168 Benchmark]: Boogie Preprocessor took 69.95 ms. Allocated memory is still 45.6 MB. Free memory was 27.0 MB in the beginning and 22.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:29:33,920 INFO L168 Benchmark]: RCFGBuilder took 1013.27 ms. Allocated memory was 45.6 MB in the beginning and 48.8 MB in the end (delta: 3.1 MB). Free memory was 22.6 MB in the beginning and 17.0 MB in the end (delta: 5.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:29:33,924 INFO L168 Benchmark]: TraceAbstraction took 1208.87 ms. Allocated memory was 48.8 MB in the beginning and 57.7 MB in the end (delta: 8.9 MB). Free memory was 16.6 MB in the beginning and 9.5 MB in the end (delta: 7.1 MB). Peak memory consumption was 16.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:29:33,925 INFO L168 Benchmark]: Witness Printer took 11.64 ms. Allocated memory is still 57.7 MB. Free memory was 9.5 MB in the beginning and 9.0 MB in the end (delta: 490.6 kB). Peak memory consumption was 490.6 kB. Max. memory is 14.3 GB. [2020-10-20 00:29:33,935 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 33.6 MB. Free memory was 11.0 MB in the beginning and 10.9 MB in the end (delta: 45.5 kB). Peak memory consumption was 45.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 486.67 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 15.3 MB in the beginning and 18.6 MB in the end (delta: -3.3 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 100.66 ms. Allocated memory was 43.5 MB in the beginning and 45.6 MB in the end (delta: 2.1 MB). Free memory was 18.6 MB in the beginning and 27.0 MB in the end (delta: -8.4 MB). Peak memory consumption was 8.1 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 69.95 ms. Allocated memory is still 45.6 MB. Free memory was 27.0 MB in the beginning and 22.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 1013.27 ms. Allocated memory was 45.6 MB in the beginning and 48.8 MB in the end (delta: 3.1 MB). Free memory was 22.6 MB in the beginning and 17.0 MB in the end (delta: 5.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1208.87 ms. Allocated memory was 48.8 MB in the beginning and 57.7 MB in the end (delta: 8.9 MB). Free memory was 16.6 MB in the beginning and 9.5 MB in the end (delta: 7.1 MB). Peak memory consumption was 16.0 MB. Max. memory is 14.3 GB. * Witness Printer took 11.64 ms. Allocated memory is still 57.7 MB. Free memory was 9.5 MB in the beginning and 9.0 MB in the end (delta: 490.6 kB). Peak memory consumption was 490.6 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 287. 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] [L278] double x = __VERIFIER_nondet_double(); [L279] double y = -1.0 / 0.0; [L262] __int32_t hx; 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] [L264] ieee_double_shape_type gh_u; [L265] gh_u.value = (x) [L266] EXPR gh_u.parts.msw [L266] (hx) = gh_u.parts.msw [L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); 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] [L282] isfinite_double(x) && isinf_double(y) [L248] __int32_t hx, lx; 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] [L250] ieee_double_shape_type ew_u; [L251] ew_u.value = (x) [L252] EXPR ew_u.parts.msw [L252] (hx) = ew_u.parts.msw [L253] EXPR ew_u.parts.lsw [L253] (lx) = ew_u.parts.lsw [L255] hx &= 0x7fffffff [L256] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L257] hx = 0x7ff00000 - hx [L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); 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] [L282] isfinite_double(x) && isinf_double(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] [L282] COND TRUE isfinite_double(x) && isinf_double(y) [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] [L284] double res = __ieee754_atan2(y, x); [L287] 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] [L3] __assert_fail("0", "double_req_bl_0684b.c", 3, "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, 125 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 343 SDtfs, 0 SDslu, 163 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 502 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:29:36,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:29:36,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:29:36,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:29:36,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:29:36,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:29:36,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:29:36,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:29:36,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:29:36,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:29:36,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:29:36,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:29:36,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:29:36,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:29:36,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:29:36,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:29:36,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:29:36,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:29:36,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:29:36,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:29:36,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:29:36,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:29:36,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:29:36,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:29:36,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:29:36,220 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:29:36,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:29:36,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:29:36,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:29:36,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:29:36,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:29:36,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:29:36,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:29:36,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:29:36,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:29:36,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:29:36,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:29:36,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:29:36,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:29:36,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:29:36,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:29:36,231 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:29:36,260 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:29:36,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:29:36,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:29:36,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:29:36,262 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:29:36,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:29:36,263 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:29:36,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:29:36,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:29:36,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:29:36,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:29:36,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:29:36,264 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:29:36,265 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:29:36,265 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:29:36,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:29:36,265 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:29:36,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:29:36,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:29:36,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:29:36,266 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:29:36,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:29:36,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:29:36,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:29:36,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:29:36,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:29:36,268 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:29:36,268 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:29:36,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:29:36,269 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:29:36,269 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:29:36,269 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> 605b3a8a7de37bea51c68bab94a94914ddbd465d [2020-10-20 00:29:36,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:29:36,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:29:36,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:29:36,507 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:29:36,508 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:29:36,509 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0684b.c [2020-10-20 00:29:36,579 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f565c107c/5a9ff5c2363e4003a621c6805edc757f/FLAG210b0816c [2020-10-20 00:29:37,114 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:29:37,115 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0684b.c [2020-10-20 00:29:37,123 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f565c107c/5a9ff5c2363e4003a621c6805edc757f/FLAG210b0816c [2020-10-20 00:29:37,398 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f565c107c/5a9ff5c2363e4003a621c6805edc757f [2020-10-20 00:29:37,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:29:37,409 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:29:37,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:29:37,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:29:37,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:29:37,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:29:37" (1/1) ... [2020-10-20 00:29:37,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef46cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:37, skipping insertion in model container [2020-10-20 00:29:37,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:29:37" (1/1) ... [2020-10-20 00:29:37,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:29:37,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:29:37,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:29:37,794 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:29:37,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:29:37,923 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:29:37,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:37 WrapperNode [2020-10-20 00:29:37,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:29:37,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:29:37,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:29:37,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:29:37,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:37" (1/1) ... [2020-10-20 00:29:37,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:37" (1/1) ... [2020-10-20 00:29:38,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:29:38,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:29:38,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:29:38,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:29:38,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:37" (1/1) ... [2020-10-20 00:29:38,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:37" (1/1) ... [2020-10-20 00:29:38,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:37" (1/1) ... [2020-10-20 00:29:38,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:37" (1/1) ... [2020-10-20 00:29:38,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:37" (1/1) ... [2020-10-20 00:29:38,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:37" (1/1) ... [2020-10-20 00:29:38,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:37" (1/1) ... [2020-10-20 00:29:38,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:29:38,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:29:38,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:29:38,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:29:38,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:29:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-20 00:29:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-20 00:29:38,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:29:38,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:29:38,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-10-20 00:29:38,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 00:29:38,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:29:38,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:29:38,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 00:29:38,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:30:18,286 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:30:18,287 INFO L298 CfgBuilder]: Removed 54 assume(true) statements. [2020-10-20 00:30:18,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:30:18 BoogieIcfgContainer [2020-10-20 00:30:18,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:30:18,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:30:18,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:30:18,306 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:30:18,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:29:37" (1/3) ... [2020-10-20 00:30:18,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac03898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:30:18, skipping insertion in model container [2020-10-20 00:30:18,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:29:37" (2/3) ... [2020-10-20 00:30:18,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac03898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:30:18, skipping insertion in model container [2020-10-20 00:30:18,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:30:18" (3/3) ... [2020-10-20 00:30:18,310 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0684b.c [2020-10-20 00:30:18,321 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:30:18,329 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:30:18,341 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:30:18,367 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:30:18,367 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:30:18,367 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:30:18,367 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:30:18,367 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:30:18,368 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:30:18,368 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:30:18,368 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:30:18,387 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2020-10-20 00:30:18,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 00:30:18,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:30:18,397 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:30:18,397 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:30:18,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:30:18,403 INFO L82 PathProgramCache]: Analyzing trace with hash -617567418, now seen corresponding path program 1 times [2020-10-20 00:30:18,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:30:18,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1127322289] [2020-10-20 00:30:18,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 00:30:18,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:30:18,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-20 00:30:18,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:30:18,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:30:18,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:30:18,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:30:18,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1127322289] [2020-10-20 00:30:18,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:30:18,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 00:30:18,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522647344] [2020-10-20 00:30:18,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:30:18,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:30:18,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:30:18,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:30:19,000 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 2 states. [2020-10-20 00:30:19,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:30:19,031 INFO L93 Difference]: Finished difference Result 247 states and 413 transitions. [2020-10-20 00:30:19,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:30:19,032 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15 [2020-10-20 00:30:19,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:30:19,047 INFO L225 Difference]: With dead ends: 247 [2020-10-20 00:30:19,047 INFO L226 Difference]: Without dead ends: 120 [2020-10-20 00:30:19,051 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:30:19,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-20 00:30:19,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-10-20 00:30:19,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-20 00:30:19,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 169 transitions. [2020-10-20 00:30:19,106 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 169 transitions. Word has length 15 [2020-10-20 00:30:19,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:30:19,107 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 169 transitions. [2020-10-20 00:30:19,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:30:19,107 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 169 transitions. [2020-10-20 00:30:19,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 00:30:19,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:30:19,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:30:19,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:30:19,323 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:30:19,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:30:19,324 INFO L82 PathProgramCache]: Analyzing trace with hash -397782484, now seen corresponding path program 1 times [2020-10-20 00:30:19,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:30:19,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2053584183] [2020-10-20 00:30:19,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-20 00:30:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:30:19,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 00:30:19,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:30:19,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:30:19,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:30:19,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:30:19,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2053584183] [2020-10-20 00:30:19,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:30:19,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-20 00:30:19,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062058060] [2020-10-20 00:30:19,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 00:30:19,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:30:19,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 00:30:19,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 00:30:19,847 INFO L87 Difference]: Start difference. First operand 120 states and 169 transitions. Second operand 3 states. [2020-10-20 00:30:19,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:30:19,924 INFO L93 Difference]: Finished difference Result 229 states and 326 transitions. [2020-10-20 00:30:19,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 00:30:19,925 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-10-20 00:30:19,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:30:19,927 INFO L225 Difference]: With dead ends: 229 [2020-10-20 00:30:19,928 INFO L226 Difference]: Without dead ends: 120 [2020-10-20 00:30:19,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 00:30:19,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-20 00:30:19,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-10-20 00:30:19,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-20 00:30:19,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 168 transitions. [2020-10-20 00:30:19,943 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 168 transitions. Word has length 18 [2020-10-20 00:30:19,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:30:19,943 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 168 transitions. [2020-10-20 00:30:19,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 00:30:19,944 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 168 transitions. [2020-10-20 00:30:19,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-20 00:30:19,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:30:19,945 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] [2020-10-20 00:30:20,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 00:30:20,146 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:30:20,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:30:20,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1006577033, now seen corresponding path program 1 times [2020-10-20 00:30:20,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:30:20,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [993692275] [2020-10-20 00:30:20,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-20 00:30:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:30:21,214 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:30:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:30:22,144 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:30:22,392 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-20 00:30:22,393 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:30:22,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 00:30:22,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:30:22 BoogieIcfgContainer [2020-10-20 00:30:22,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:30:22,678 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:30:22,678 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:30:22,678 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:30:22,679 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:30:18" (3/4) ... [2020-10-20 00:30:22,681 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 00:30:22,867 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:30:22,867 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:30:22,870 INFO L168 Benchmark]: Toolchain (without parser) took 45465.69 ms. Allocated memory was 35.7 MB in the beginning and 62.4 MB in the end (delta: 26.7 MB). Free memory was 8.7 MB in the beginning and 35.9 MB in the end (delta: -27.2 MB). Peak memory consumption was 21.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:22,870 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 35.1 MB. Free memory was 14.1 MB in the beginning and 14.1 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-20 00:30:22,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 513.82 ms. Allocated memory was 35.7 MB in the beginning and 45.1 MB in the end (delta: 9.4 MB). Free memory was 7.8 MB in the beginning and 18.8 MB in the end (delta: -11.0 MB). Peak memory consumption was 6.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:22,872 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.65 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 18.8 MB in the beginning and 28.4 MB in the end (delta: -9.6 MB). Peak memory consumption was 6.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:22,873 INFO L168 Benchmark]: Boogie Preprocessor took 77.28 ms. Allocated memory is still 47.2 MB. Free memory was 28.4 MB in the beginning and 24.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:22,873 INFO L168 Benchmark]: RCFGBuilder took 40198.96 ms. Allocated memory was 47.2 MB in the beginning and 51.4 MB in the end (delta: 4.2 MB). Free memory was 24.1 MB in the beginning and 10.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:22,874 INFO L168 Benchmark]: TraceAbstraction took 4387.31 ms. Allocated memory was 51.4 MB in the beginning and 59.8 MB in the end (delta: 8.4 MB). Free memory was 10.7 MB in the beginning and 12.4 MB in the end (delta: -1.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:22,874 INFO L168 Benchmark]: Witness Printer took 189.76 ms. Allocated memory was 59.8 MB in the beginning and 62.4 MB in the end (delta: 2.6 MB). Free memory was 12.4 MB in the beginning and 35.9 MB in the end (delta: -23.5 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:30:22,877 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 35.1 MB. Free memory was 14.1 MB in the beginning and 14.1 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 513.82 ms. Allocated memory was 35.7 MB in the beginning and 45.1 MB in the end (delta: 9.4 MB). Free memory was 7.8 MB in the beginning and 18.8 MB in the end (delta: -11.0 MB). Peak memory consumption was 6.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 87.65 ms. Allocated memory was 45.1 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Free memory was 18.8 MB in the beginning and 28.4 MB in the end (delta: -9.6 MB). Peak memory consumption was 6.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 77.28 ms. Allocated memory is still 47.2 MB. Free memory was 28.4 MB in the beginning and 24.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 40198.96 ms. Allocated memory was 47.2 MB in the beginning and 51.4 MB in the end (delta: 4.2 MB). Free memory was 24.1 MB in the beginning and 10.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 4387.31 ms. Allocated memory was 51.4 MB in the beginning and 59.8 MB in the end (delta: 8.4 MB). Free memory was 10.7 MB in the beginning and 12.4 MB in the end (delta: -1.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 14.3 GB. * Witness Printer took 189.76 ms. Allocated memory was 59.8 MB in the beginning and 62.4 MB in the end (delta: 2.6 MB). Free memory was 12.4 MB in the beginning and 35.9 MB in the end (delta: -23.5 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [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={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L278] double x = __VERIFIER_nondet_double(); [L279] double y = -1.0 / 0.0; [L262] __int32_t hx; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L264] ieee_double_shape_type gh_u; [L265] gh_u.value = (x) [L266] EXPR gh_u.parts.msw [L266] (hx) = gh_u.parts.msw [L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L282] isfinite_double(x) && isinf_double(y) [L248] __int32_t hx, lx; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L250] ieee_double_shape_type ew_u; [L251] ew_u.value = (x) [L252] EXPR ew_u.parts.msw [L252] (hx) = ew_u.parts.msw [L253] EXPR ew_u.parts.lsw [L253] (lx) = ew_u.parts.lsw [L255] hx &= 0x7fffffff [L256] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L257] hx = 0x7ff00000 - hx [L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L282] isfinite_double(x) && isinf_double(y) VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L282] COND TRUE isfinite_double(x) && isinf_double(y) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [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={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [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={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L284] double res = __ieee754_atan2(y, x); [L287] COND TRUE res != -pi_o_2 VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] [L3] __assert_fail("0", "double_req_bl_0684b.c", 3, "reach_error") VAL [aT_atan={11:0}, atanhi_atan={-2147483646:0}, atanlo_atan={6:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1.0, pi=3.141592653589793, pi_lo_atan2=0.00000000000000012246467991473532, pi_o_2=1.5707963267948966, pi_o_4=0.7853981633974483, tiny_atan2=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, zero_atan2=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 125 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 343 SDtfs, 0 SDslu, 163 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 1004 SizeOfPredicates, 0 NumberOfNonLiveVariables, 280 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...