./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1091.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2880296f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1091.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 aad197397f99c266313f2caa0ca0a263e036c988 ....................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1091.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 aad197397f99c266313f2caa0ca0a263e036c988 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 15:32:52,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:32:52,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:32:52,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:32:52,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:32:52,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:32:52,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:32:52,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:32:52,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:32:52,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:32:52,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:32:52,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:32:52,754 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:32:52,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:32:52,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:32:52,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:32:52,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:32:52,766 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:32:52,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:32:52,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:32:52,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:32:52,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:32:52,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:32:52,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:32:52,795 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:32:52,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:32:52,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:32:52,798 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:32:52,799 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:32:52,800 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:32:52,800 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:32:52,801 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:32:52,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:32:52,804 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:32:52,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:32:52,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:32:52,807 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:32:52,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:32:52,808 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:32:52,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:32:52,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:32:52,811 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 15:32:52,869 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:32:52,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:32:52,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:32:52,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:32:52,874 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:32:52,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:32:52,874 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:32:52,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 15:32:52,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:32:52,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:32:52,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:32:52,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:32:52,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:32:52,878 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:32:52,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:32:52,878 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:32:52,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:32:52,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:32:52,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:32:52,879 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:32:52,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:32:52,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:32:52,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:32:52,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:32:52,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:32:52,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 15:32:52,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 15:32:52,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:32:52,882 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:32:52,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad197397f99c266313f2caa0ca0a263e036c988 [2020-12-02 15:32:53,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:32:53,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:32:53,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:32:53,383 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:32:53,385 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:32:53,386 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1091.c [2020-12-02 15:32:53,471 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39b55eb57/5467358e5ffc463bab8b0ee57a043c06/FLAG0c9aa8919 [2020-12-02 15:32:54,066 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:32:54,067 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1091.c [2020-12-02 15:32:54,075 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39b55eb57/5467358e5ffc463bab8b0ee57a043c06/FLAG0c9aa8919 [2020-12-02 15:32:54,407 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39b55eb57/5467358e5ffc463bab8b0ee57a043c06 [2020-12-02 15:32:54,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:32:54,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:32:54,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:32:54,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:32:54,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:32:54,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:32:54" (1/1) ... [2020-12-02 15:32:54,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73172864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:54, skipping insertion in model container [2020-12-02 15:32:54,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:32:54" (1/1) ... [2020-12-02 15:32:54,453 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:32:54,470 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:32:54,654 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1091.c[2108,2121] [2020-12-02 15:32:54,658 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:32:54,667 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:32:54,714 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1091.c[2108,2121] [2020-12-02 15:32:54,716 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:32:54,738 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:32:54,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:54 WrapperNode [2020-12-02 15:32:54,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:32:54,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:32:54,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:32:54,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:32:54,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:54" (1/1) ... [2020-12-02 15:32:54,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:54" (1/1) ... [2020-12-02 15:32:54,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:32:54,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:32:54,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:32:54,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:32:54,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:54" (1/1) ... [2020-12-02 15:32:54,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:54" (1/1) ... [2020-12-02 15:32:54,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:54" (1/1) ... [2020-12-02 15:32:54,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:54" (1/1) ... [2020-12-02 15:32:54,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:54" (1/1) ... [2020-12-02 15:32:54,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:54" (1/1) ... [2020-12-02 15:32:54,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:54" (1/1) ... [2020-12-02 15:32:54,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:32:54,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:32:54,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:32:54,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:32:54,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:32:55,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 15:32:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:32:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-02 15:32:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 15:32:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-02 15:32:55,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:32:55,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:32:55,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-02 15:32:55,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:32:55,503 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:32:55,503 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-02 15:32:55,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:32:55 BoogieIcfgContainer [2020-12-02 15:32:55,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:32:55,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:32:55,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:32:55,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:32:55,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:32:54" (1/3) ... [2020-12-02 15:32:55,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc7c4c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:32:55, skipping insertion in model container [2020-12-02 15:32:55,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:32:54" (2/3) ... [2020-12-02 15:32:55,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc7c4c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:32:55, skipping insertion in model container [2020-12-02 15:32:55,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:32:55" (3/3) ... [2020-12-02 15:32:55,520 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2020-12-02 15:32:55,540 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:32:55,545 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:32:55,559 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:32:55,600 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:32:55,601 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:32:55,601 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:32:55,601 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:32:55,602 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:32:55,602 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:32:55,602 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:32:55,603 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:32:55,621 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-12-02 15:32:55,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 15:32:55,629 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:32:55,630 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:32:55,631 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:32:55,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:32:55,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2020-12-02 15:32:55,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 15:32:55,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267819195] [2020-12-02 15:32:55,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 15:32:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:32:55,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:32:55,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267819195] [2020-12-02 15:32:55,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:32:55,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 15:32:55,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291948465] [2020-12-02 15:32:55,803 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:32:55,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 15:32:55,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:32:55,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:32:55,826 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-12-02 15:32:55,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:32:55,846 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2020-12-02 15:32:55,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:32:55,847 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-02 15:32:55,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:32:55,858 INFO L225 Difference]: With dead ends: 66 [2020-12-02 15:32:55,858 INFO L226 Difference]: Without dead ends: 31 [2020-12-02 15:32:55,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:32:55,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-02 15:32:55,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-12-02 15:32:55,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-02 15:32:55,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2020-12-02 15:32:55,900 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2020-12-02 15:32:55,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:32:55,900 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2020-12-02 15:32:55,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:32:55,901 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2020-12-02 15:32:55,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 15:32:55,902 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:32:55,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:32:55,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 15:32:55,903 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:32:55,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:32:55,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2020-12-02 15:32:55,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 15:32:55,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603806753] [2020-12-02 15:32:55,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 15:32:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:32:55,980 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:32:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:32:56,019 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:32:56,047 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 15:32:56,047 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 15:32:56,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 15:32:56,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:32:56 BoogieIcfgContainer [2020-12-02 15:32:56,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 15:32:56,081 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 15:32:56,081 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 15:32:56,081 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 15:32:56,082 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:32:55" (3/4) ... [2020-12-02 15:32:56,085 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 15:32:56,086 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 15:32:56,088 INFO L168 Benchmark]: Toolchain (without parser) took 1674.43 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.1 MB in the beginning and 25.7 MB in the end (delta: -4.6 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2020-12-02 15:32:56,089 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 35.7 MB. Free memory was 22.2 MB in the beginning and 22.2 MB in the end (delta: 18.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:32:56,090 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.48 ms. Allocated memory is still 44.0 MB. Free memory was 20.9 MB in the beginning and 29.4 MB in the end (delta: -8.5 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-12-02 15:32:56,091 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.69 ms. Allocated memory is still 44.0 MB. Free memory was 29.3 MB in the beginning and 27.5 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:32:56,092 INFO L168 Benchmark]: Boogie Preprocessor took 64.21 ms. Allocated memory is still 44.0 MB. Free memory was 27.5 MB in the beginning and 26.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:32:56,093 INFO L168 Benchmark]: RCFGBuilder took 612.15 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 25.9 MB in the beginning and 35.6 MB in the end (delta: -9.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:32:56,094 INFO L168 Benchmark]: TraceAbstraction took 570.25 ms. Allocated memory is still 54.5 MB. Free memory was 35.1 MB in the beginning and 26.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2020-12-02 15:32:56,094 INFO L168 Benchmark]: Witness Printer took 4.57 ms. Allocated memory is still 54.5 MB. Free memory was 26.1 MB in the beginning and 25.7 MB in the end (delta: 354.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:32:56,100 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 35.7 MB. Free memory was 22.2 MB in the beginning and 22.2 MB in the end (delta: 18.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 332.48 ms. Allocated memory is still 44.0 MB. Free memory was 20.9 MB in the beginning and 29.4 MB in the end (delta: -8.5 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.69 ms. Allocated memory is still 44.0 MB. Free memory was 29.3 MB in the beginning and 27.5 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.21 ms. Allocated memory is still 44.0 MB. Free memory was 27.5 MB in the beginning and 26.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 612.15 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 25.9 MB in the beginning and 35.6 MB in the end (delta: -9.6 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 570.25 ms. Allocated memory is still 54.5 MB. Free memory was 35.1 MB in the beginning and 26.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. * Witness Printer took 4.57 ms. Allocated memory is still 54.5 MB. Free memory was 26.1 MB in the beginning and 25.7 MB in the end (delta: 354.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 97]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of shiftRight at line 43, overapproximation of bitwiseOr at line 44, overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryArithmeticDOUBLE_SMToperation at line 92, overapproximation of someBinaryDOUBLE_SMTComparisonOperation at line 17. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L92] double x = 0.0 / 0.0; [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L32] COND FALSE !(j0 < 0) [L43] i = (0x000fffff) >> j0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L44] COND TRUE ((i0 & i) | i1) == 0 [L45] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L93] double res = ceil_double(x); [L17] return x != x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L96] COND TRUE !isnan_double(res) [L97] reach_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-2880296 [2020-12-02 15:32:58,636 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:32:58,640 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:32:58,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:32:58,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:32:58,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:32:58,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:32:58,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:32:58,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:32:58,724 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:32:58,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:32:58,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:32:58,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:32:58,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:32:58,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:32:58,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:32:58,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:32:58,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:32:58,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:32:58,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:32:58,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:32:58,751 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:32:58,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:32:58,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:32:58,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:32:58,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:32:58,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:32:58,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:32:58,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:32:58,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:32:58,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:32:58,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:32:58,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:32:58,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:32:58,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:32:58,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:32:58,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:32:58,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:32:58,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:32:58,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:32:58,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:32:58,793 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 15:32:58,841 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:32:58,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:32:58,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:32:58,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:32:58,844 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:32:58,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:32:58,845 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:32:58,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:32:58,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:32:58,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:32:58,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:32:58,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:32:58,847 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 15:32:58,847 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 15:32:58,847 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:32:58,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:32:58,848 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:32:58,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:32:58,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:32:58,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:32:58,849 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:32:58,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:32:58,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:32:58,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:32:58,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:32:58,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:32:58,850 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 15:32:58,850 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 15:32:58,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:32:58,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:32:58,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 15:32:58,851 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad197397f99c266313f2caa0ca0a263e036c988 [2020-12-02 15:32:59,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:32:59,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:32:59,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:32:59,295 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:32:59,296 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:32:59,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1091.c [2020-12-02 15:32:59,380 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d44b173e/2140ef24b4dc4d1c98dbf3e6d17a402a/FLAG0f78d7ddc [2020-12-02 15:32:59,916 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:32:59,917 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1091.c [2020-12-02 15:32:59,926 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d44b173e/2140ef24b4dc4d1c98dbf3e6d17a402a/FLAG0f78d7ddc [2020-12-02 15:33:00,259 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d44b173e/2140ef24b4dc4d1c98dbf3e6d17a402a [2020-12-02 15:33:00,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:33:00,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:33:00,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:33:00,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:33:00,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:33:00,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:33:00" (1/1) ... [2020-12-02 15:33:00,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e8fb45c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:00, skipping insertion in model container [2020-12-02 15:33:00,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:33:00" (1/1) ... [2020-12-02 15:33:00,293 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:33:00,321 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:33:00,565 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1091.c[2108,2121] [2020-12-02 15:33:00,568 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:33:00,586 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:33:00,622 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1091.c[2108,2121] [2020-12-02 15:33:00,623 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:33:00,645 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:33:00,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:00 WrapperNode [2020-12-02 15:33:00,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:33:00,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:33:00,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:33:00,649 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:33:00,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:00" (1/1) ... [2020-12-02 15:33:00,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:00" (1/1) ... [2020-12-02 15:33:00,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:33:00,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:33:00,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:33:00,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:33:00,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:00" (1/1) ... [2020-12-02 15:33:00,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:00" (1/1) ... [2020-12-02 15:33:00,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:00" (1/1) ... [2020-12-02 15:33:00,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:00" (1/1) ... [2020-12-02 15:33:00,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:00" (1/1) ... [2020-12-02 15:33:00,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:00" (1/1) ... [2020-12-02 15:33:00,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:00" (1/1) ... [2020-12-02 15:33:00,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:33:00,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:33:00,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:33:00,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:33:00,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:33:00,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 15:33:00,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-02 15:33:00,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-02 15:33:00,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 15:33:00,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:33:00,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 15:33:00,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:33:00,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:33:00,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 15:33:00,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:33:02,089 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:33:02,090 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-02 15:33:02,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:02 BoogieIcfgContainer [2020-12-02 15:33:02,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:33:02,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:33:02,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:33:02,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:33:02,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:33:00" (1/3) ... [2020-12-02 15:33:02,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1676f0e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:33:02, skipping insertion in model container [2020-12-02 15:33:02,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:00" (2/3) ... [2020-12-02 15:33:02,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1676f0e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:33:02, skipping insertion in model container [2020-12-02 15:33:02,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:02" (3/3) ... [2020-12-02 15:33:02,101 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2020-12-02 15:33:02,116 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:33:02,120 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:33:02,132 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:33:02,158 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:33:02,159 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:33:02,159 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:33:02,159 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:33:02,159 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:33:02,159 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:33:02,160 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:33:02,160 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:33:02,174 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-12-02 15:33:02,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 15:33:02,180 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:33:02,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:33:02,181 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:33:02,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:33:02,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2020-12-02 15:33:02,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:33:02,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42232007] [2020-12-02 15:33:02,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-02 15:33:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:33:03,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 15:33:03,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:33:03,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:33:03,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:33:03,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:33:03,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42232007] [2020-12-02 15:33:03,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:33:03,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 15:33:03,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416895184] [2020-12-02 15:33:03,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:33:03,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:33:03,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:33:03,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:33:03,352 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-12-02 15:33:03,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:33:03,370 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2020-12-02 15:33:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:33:03,372 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-02 15:33:03,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:33:03,381 INFO L225 Difference]: With dead ends: 66 [2020-12-02 15:33:03,381 INFO L226 Difference]: Without dead ends: 31 [2020-12-02 15:33:03,384 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:33:03,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-02 15:33:03,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-12-02 15:33:03,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-02 15:33:03,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2020-12-02 15:33:03,417 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2020-12-02 15:33:03,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:33:03,417 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2020-12-02 15:33:03,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:33:03,417 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2020-12-02 15:33:03,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 15:33:03,418 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:33:03,418 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:33:03,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 15:33:03,626 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:33:03,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:33:03,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2020-12-02 15:33:03,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:33:03,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1192431025] [2020-12-02 15:33:03,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-02 15:33:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:33:04,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-02 15:33:04,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:33:09,436 WARN L197 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 23 [2020-12-02 15:33:20,504 WARN L197 SmtUtils]: Spent 1.79 s on a formula simplification that was a NOOP. DAG size: 26 [2020-12-02 15:33:37,851 WARN L197 SmtUtils]: Spent 1.57 s on a formula simplification that was a NOOP. DAG size: 32 [2020-12-02 15:33:37,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:33:37,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:33:53,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:33:53,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1192431025] [2020-12-02 15:33:53,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:33:53,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-12-02 15:33:53,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102679965] [2020-12-02 15:33:53,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-02 15:33:53,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:33:53,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-02 15:33:53,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=48, Unknown=6, NotChecked=0, Total=72 [2020-12-02 15:33:53,416 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 9 states. [2020-12-02 15:34:09,979 WARN L197 SmtUtils]: Spent 4.24 s on a formula simplification that was a NOOP. DAG size: 26 [2020-12-02 15:34:13,738 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet22_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet21_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_6|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_6|)))) (and (= (_ +zero 11 53) .cse0) (= .cse1 (_ +zero 11 53)) (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_ceil_double_~x) ((_ extract 62 52) c_ULTIMATE.start_ceil_double_~x) ((_ extract 51 0) c_ULTIMATE.start_ceil_double_~x)))))) (exists ((|v_ULTIMATE.start_main_#t~nondet22_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet21_6| (_ BitVec 64)) (ULTIMATE.start_ceil_double_~x (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_6|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_6|)))) (and (= (_ +zero 11 53) .cse2) (= .cse3 (_ +zero 11 53)) (= (fp.div roundNearestTiesToEven .cse2 .cse3) (fp ((_ extract 63 63) ULTIMATE.start_ceil_double_~x) ((_ extract 62 52) ULTIMATE.start_ceil_double_~x) ((_ extract 51 0) ULTIMATE.start_ceil_double_~x))) (= ((_ extract 63 32) ULTIMATE.start_ceil_double_~x) c_ULTIMATE.start_ceil_double_~i0~0))))) is different from false [2020-12-02 15:34:17,349 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet22_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet21_6| (_ BitVec 64)) (ULTIMATE.start_ceil_double_~x (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_6|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_6|)))) (and (= (bvadd c_ULTIMATE.start_ceil_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) ULTIMATE.start_ceil_double_~x) (_ bv20 32)))) (= (_ +zero 11 53) .cse0) (= .cse1 (_ +zero 11 53)) (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) ULTIMATE.start_ceil_double_~x) ((_ extract 62 52) ULTIMATE.start_ceil_double_~x) ((_ extract 51 0) ULTIMATE.start_ceil_double_~x)))))) (exists ((|v_ULTIMATE.start_main_#t~nondet22_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet21_6| (_ BitVec 64)) (ULTIMATE.start_ceil_double_~x (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_6|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_6|)))) (and (= (_ +zero 11 53) .cse2) (= .cse3 (_ +zero 11 53)) (= (fp.div roundNearestTiesToEven .cse2 .cse3) (fp ((_ extract 63 63) ULTIMATE.start_ceil_double_~x) ((_ extract 62 52) ULTIMATE.start_ceil_double_~x) ((_ extract 51 0) ULTIMATE.start_ceil_double_~x))) (= ((_ extract 63 32) ULTIMATE.start_ceil_double_~x) c_ULTIMATE.start_ceil_double_~i0~0))))) is different from false [2020-12-02 15:34:24,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:34:24,571 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2020-12-02 15:34:24,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-02 15:34:24,572 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2020-12-02 15:34:24,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:34:24,573 INFO L225 Difference]: With dead ends: 53 [2020-12-02 15:34:24,573 INFO L226 Difference]: Without dead ends: 37 [2020-12-02 15:34:24,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 70.1s TimeCoverageRelationStatistics Valid=27, Invalid=61, Unknown=10, NotChecked=34, Total=132 [2020-12-02 15:34:24,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-02 15:34:24,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 23. [2020-12-02 15:34:24,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-02 15:34:24,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2020-12-02 15:34:24,581 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 12 [2020-12-02 15:34:24,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:34:24,582 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions. [2020-12-02 15:34:24,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-02 15:34:24,582 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2020-12-02 15:34:24,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 15:34:24,583 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:34:24,583 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:34:24,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 15:34:24,784 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:34:24,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:34:24,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1803097798, now seen corresponding path program 1 times [2020-12-02 15:34:24,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:34:24,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30720563] [2020-12-02 15:34:24,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-02 15:34:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:34:25,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-02 15:34:25,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:34:31,379 WARN L197 SmtUtils]: Spent 1.98 s on a formula simplification that was a NOOP. DAG size: 23 [2020-12-02 15:34:41,923 WARN L197 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 26 [2020-12-02 15:34:58,471 WARN L197 SmtUtils]: Spent 1.53 s on a formula simplification that was a NOOP. DAG size: 32 [2020-12-02 15:35:13,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:35:13,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:35:22,605 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-02 15:35:27,442 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-12-02 15:35:32,519 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-02 15:35:33,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:35:33,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [30720563] [2020-12-02 15:35:33,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:35:33,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 10 [2020-12-02 15:35:33,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034144298] [2020-12-02 15:35:33,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-02 15:35:33,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:35:33,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-02 15:35:33,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=62, Unknown=6, NotChecked=0, Total=90 [2020-12-02 15:35:33,724 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. Second operand 10 states. [2020-12-02 15:35:35,999 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet22_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet21_8| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_8|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_8|)))) (and (= (_ +zero 11 53) .cse0) (= (fp ((_ extract 63 63) c_ULTIMATE.start_ceil_double_~x) ((_ extract 62 52) c_ULTIMATE.start_ceil_double_~x) ((_ extract 51 0) c_ULTIMATE.start_ceil_double_~x)) (fp.div roundNearestTiesToEven .cse0 .cse1)) (= (_ +zero 11 53) .cse1))))) is different from false [2020-12-02 15:35:42,539 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet22_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet21_8| (_ BitVec 64)) (ULTIMATE.start_ceil_double_~x (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_8|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_8|)))) (and (= (_ +zero 11 53) .cse0) (= (fp ((_ extract 63 63) ULTIMATE.start_ceil_double_~x) ((_ extract 62 52) ULTIMATE.start_ceil_double_~x) ((_ extract 51 0) ULTIMATE.start_ceil_double_~x)) (fp.div roundNearestTiesToEven .cse0 .cse1)) (= (_ +zero 11 53) .cse1) (= ((_ extract 63 32) ULTIMATE.start_ceil_double_~x) c_ULTIMATE.start_ceil_double_~i0~0)))) (exists ((|v_ULTIMATE.start_main_#t~nondet22_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet21_8| (_ BitVec 64)) (ULTIMATE.start_ceil_double_~x (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_8|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_8|)))) (and (= (bvadd c_ULTIMATE.start_ceil_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) ULTIMATE.start_ceil_double_~x) (_ bv20 32)))) (= (_ +zero 11 53) .cse2) (= (fp ((_ extract 63 63) ULTIMATE.start_ceil_double_~x) ((_ extract 62 52) ULTIMATE.start_ceil_double_~x) ((_ extract 51 0) ULTIMATE.start_ceil_double_~x)) (fp.div roundNearestTiesToEven .cse2 .cse3)) (= (_ +zero 11 53) .cse3))))) is different from false [2020-12-02 15:35:53,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:35:53,621 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2020-12-02 15:35:53,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 15:35:53,806 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2020-12-02 15:35:53,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:35:53,807 INFO L225 Difference]: With dead ends: 28 [2020-12-02 15:35:53,807 INFO L226 Difference]: Without dead ends: 13 [2020-12-02 15:35:53,808 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 72.5s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=8, NotChecked=34, Total=132 [2020-12-02 15:35:53,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-12-02 15:35:53,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-12-02 15:35:53,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-02 15:35:53,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2020-12-02 15:35:53,815 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 12 [2020-12-02 15:35:53,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:35:53,815 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2020-12-02 15:35:53,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-02 15:35:53,817 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2020-12-02 15:35:53,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 15:35:53,818 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:35:53,818 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:35:54,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-02 15:35:54,027 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:35:54,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:35:54,029 INFO L82 PathProgramCache]: Analyzing trace with hash -2009966502, now seen corresponding path program 1 times [2020-12-02 15:35:54,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:35:54,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [509012097] [2020-12-02 15:35:54,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-02 15:35:54,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:35:54,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-02 15:35:54,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:36:01,720 WARN L197 SmtUtils]: Spent 4.64 s on a formula simplification that was a NOOP. DAG size: 26 [2020-12-02 15:36:13,270 WARN L197 SmtUtils]: Spent 6.59 s on a formula simplification that was a NOOP. DAG size: 29 [2020-12-02 15:36:27,567 WARN L197 SmtUtils]: Spent 6.38 s on a formula simplification that was a NOOP. DAG size: 35 [2020-12-02 15:36:29,720 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_#t~nondet21_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet22_10| (_ BitVec 64)) (ULTIMATE.start_ceil_double_~x (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_10|))) (.cse1 (fp ((_ extract 63 63) ULTIMATE.start_ceil_double_~x) ((_ extract 62 52) ULTIMATE.start_ceil_double_~x) ((_ extract 51 0) ULTIMATE.start_ceil_double_~x))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_10|)))) (and (= .cse0 (_ +zero 11 53)) (= .cse1 (fp.div roundNearestTiesToEven .cse0 .cse2)) (= (fp.add roundNearestTiesToEven .cse1 .cse1) (fp ((_ extract 63 63) |c_ULTIMATE.start_ceil_double_#res|) ((_ extract 62 52) |c_ULTIMATE.start_ceil_double_#res|) ((_ extract 51 0) |c_ULTIMATE.start_ceil_double_#res|))) (= .cse2 (_ +zero 11 53)) (= (_ bv2047 32) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) ULTIMATE.start_ceil_double_~x) (_ bv20 32))))))) is different from false [2020-12-02 15:36:29,755 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 15:36:29,758 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-02 15:36:40,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:36:40,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:36:59,552 WARN L197 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 23 [2020-12-02 15:37:04,043 WARN L197 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 26 [2020-12-02 15:37:07,995 WARN L197 SmtUtils]: Spent 940.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-12-02 15:37:09,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:37:09,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [509012097] [2020-12-02 15:37:09,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:37:09,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2020-12-02 15:37:09,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325614115] [2020-12-02 15:37:09,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-02 15:37:09,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:37:09,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-02 15:37:09,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=141, Unknown=2, NotChecked=24, Total=210 [2020-12-02 15:37:09,242 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand 15 states. [2020-12-02 15:37:14,980 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ extract 63 32) c_ULTIMATE.start_ceil_double_~x))) (and (exists ((|v_ULTIMATE.start_main_#t~nondet21_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet22_10| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_10|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_10|)))) (and (= .cse0 (_ +zero 11 53)) (= (fp.div c_~CRM .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_ceil_double_~x) ((_ extract 62 52) c_ULTIMATE.start_ceil_double_~x) ((_ extract 51 0) c_ULTIMATE.start_ceil_double_~x))) (= .cse1 (_ +zero 11 53))))) (= (bvadd c_ULTIMATE.start_ceil_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr .cse2 (_ bv20 32)))) (= roundNearestTiesToEven c_~CRM) (= .cse2 c_ULTIMATE.start_ceil_double_~i0~0))) is different from false [2020-12-02 15:37:19,765 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-02 15:37:19,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 15:37:19,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-02 15:37:19,968 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:226) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:829) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1064) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:966) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:187) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:743) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:674) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 45 more [2020-12-02 15:37:19,975 INFO L168 Benchmark]: Toolchain (without parser) took 259708.73 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 25.9 MB in the beginning and 39.9 MB in the end (delta: -14.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. [2020-12-02 15:37:19,976 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 48.2 MB. Free memory was 29.0 MB in the beginning and 28.9 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:37:19,977 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.44 ms. Allocated memory is still 48.2 MB. Free memory was 25.7 MB in the beginning and 25.0 MB in the end (delta: 649.6 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-02 15:37:19,977 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.58 ms. Allocated memory is still 48.2 MB. Free memory was 24.9 MB in the beginning and 23.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:37:19,978 INFO L168 Benchmark]: Boogie Preprocessor took 86.02 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.0 MB in the beginning and 42.8 MB in the end (delta: -19.8 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-12-02 15:37:19,979 INFO L168 Benchmark]: RCFGBuilder took 1265.79 ms. Allocated memory is still 58.7 MB. Free memory was 42.8 MB in the beginning and 34.1 MB in the end (delta: 8.7 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2020-12-02 15:37:19,980 INFO L168 Benchmark]: TraceAbstraction took 257880.60 ms. Allocated memory is still 58.7 MB. Free memory was 33.8 MB in the beginning and 39.9 MB in the end (delta: -6.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2020-12-02 15:37:19,984 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 48.2 MB. Free memory was 29.0 MB in the beginning and 28.9 MB in the end (delta: 32.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 373.44 ms. Allocated memory is still 48.2 MB. Free memory was 25.7 MB in the beginning and 25.0 MB in the end (delta: 649.6 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 89.58 ms. Allocated memory is still 48.2 MB. Free memory was 24.9 MB in the beginning and 23.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 86.02 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.0 MB in the beginning and 42.8 MB in the end (delta: -19.8 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1265.79 ms. Allocated memory is still 58.7 MB. Free memory was 42.8 MB in the beginning and 34.1 MB in the end (delta: 8.7 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 257880.60 ms. Allocated memory is still 58.7 MB. Free memory was 33.8 MB in the beginning and 39.9 MB in the end (delta: -6.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...