./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1031.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1031.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 2c4d19baf0429684b688f90d909ef640d9fb6537 ............................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1031.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 2c4d19baf0429684b688f90d909ef640d9fb6537 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-ee8e70e [2020-10-24 15:03:37,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 15:03:37,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 15:03:37,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 15:03:37,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 15:03:37,643 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 15:03:37,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 15:03:37,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 15:03:37,655 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 15:03:37,662 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 15:03:37,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 15:03:37,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 15:03:37,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 15:03:37,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 15:03:37,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 15:03:37,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 15:03:37,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 15:03:37,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 15:03:37,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 15:03:37,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 15:03:37,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 15:03:37,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 15:03:37,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 15:03:37,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 15:03:37,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 15:03:37,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 15:03:37,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 15:03:37,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 15:03:37,709 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 15:03:37,710 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 15:03:37,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 15:03:37,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 15:03:37,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 15:03:37,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 15:03:37,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 15:03:37,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 15:03:37,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 15:03:37,717 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 15:03:37,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 15:03:37,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 15:03:37,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 15:03:37,721 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 15:03:37,776 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 15:03:37,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 15:03:37,779 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 15:03:37,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 15:03:37,779 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 15:03:37,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 15:03:37,780 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 15:03:37,780 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 15:03:37,780 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 15:03:37,781 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 15:03:37,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 15:03:37,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 15:03:37,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 15:03:37,783 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 15:03:37,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 15:03:37,783 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 15:03:37,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 15:03:37,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 15:03:37,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 15:03:37,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 15:03:37,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 15:03:37,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:03:37,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 15:03:37,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 15:03:37,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 15:03:37,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 15:03:37,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 15:03:37,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 15:03:37,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 15:03:37,787 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c4d19baf0429684b688f90d909ef640d9fb6537 [2020-10-24 15:03:38,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 15:03:38,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 15:03:38,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 15:03:38,241 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 15:03:38,243 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 15:03:38,244 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1031.c [2020-10-24 15:03:38,320 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/87e6d4c99/641fc11090ea4ea8a13e655078e2d24a/FLAG8a616e8f1 [2020-10-24 15:03:38,896 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 15:03:38,897 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1031.c [2020-10-24 15:03:38,904 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/87e6d4c99/641fc11090ea4ea8a13e655078e2d24a/FLAG8a616e8f1 [2020-10-24 15:03:39,290 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/87e6d4c99/641fc11090ea4ea8a13e655078e2d24a [2020-10-24 15:03:39,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 15:03:39,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 15:03:39,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 15:03:39,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 15:03:39,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 15:03:39,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:03:39" (1/1) ... [2020-10-24 15:03:39,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cbdfa29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:39, skipping insertion in model container [2020-10-24 15:03:39,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:03:39" (1/1) ... [2020-10-24 15:03:39,365 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 15:03:39,393 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 15:03:39,558 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:03:39,568 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 15:03:39,599 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:03:39,616 INFO L217 MainTranslator]: Completed translation [2020-10-24 15:03:39,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:39 WrapperNode [2020-10-24 15:03:39,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 15:03:39,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 15:03:39,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 15:03:39,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 15:03:39,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:39" (1/1) ... [2020-10-24 15:03:39,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:39" (1/1) ... [2020-10-24 15:03:39,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 15:03:39,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 15:03:39,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 15:03:39,670 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 15:03:39,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:39" (1/1) ... [2020-10-24 15:03:39,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:39" (1/1) ... [2020-10-24 15:03:39,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:39" (1/1) ... [2020-10-24 15:03:39,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:39" (1/1) ... [2020-10-24 15:03:39,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:39" (1/1) ... [2020-10-24 15:03:39,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:39" (1/1) ... [2020-10-24 15:03:39,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:39" (1/1) ... [2020-10-24 15:03:39,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 15:03:39,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 15:03:39,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 15:03:39,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 15:03:39,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:03:39,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 15:03:39,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 15:03:39,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 15:03:39,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 15:03:39,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 15:03:39,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 15:03:39,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 15:03:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 15:03:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 15:03:40,350 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 15:03:40,351 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-24 15:03:40,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:03:40 BoogieIcfgContainer [2020-10-24 15:03:40,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 15:03:40,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 15:03:40,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 15:03:40,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 15:03:40,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:03:39" (1/3) ... [2020-10-24 15:03:40,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd7acbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:03:40, skipping insertion in model container [2020-10-24 15:03:40,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:39" (2/3) ... [2020-10-24 15:03:40,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bd7acbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:03:40, skipping insertion in model container [2020-10-24 15:03:40,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:03:40" (3/3) ... [2020-10-24 15:03:40,364 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1031.c [2020-10-24 15:03:40,380 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 15:03:40,392 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 15:03:40,407 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 15:03:40,452 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 15:03:40,453 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 15:03:40,453 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 15:03:40,453 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 15:03:40,453 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 15:03:40,453 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 15:03:40,453 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 15:03:40,453 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 15:03:40,471 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-10-24 15:03:40,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 15:03:40,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:03:40,486 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:03:40,487 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:03:40,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:03:40,493 INFO L82 PathProgramCache]: Analyzing trace with hash 2068161395, now seen corresponding path program 1 times [2020-10-24 15:03:40,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:03:40,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234399134] [2020-10-24 15:03:40,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:03:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:03:40,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:03:40,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234399134] [2020-10-24 15:03:40,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:03:40,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 15:03:40,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711124921] [2020-10-24 15:03:40,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 15:03:40,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 15:03:40,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 15:03:40,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 15:03:40,676 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2020-10-24 15:03:40,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:03:40,693 INFO L93 Difference]: Finished difference Result 51 states and 75 transitions. [2020-10-24 15:03:40,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 15:03:40,695 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-10-24 15:03:40,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:03:40,704 INFO L225 Difference]: With dead ends: 51 [2020-10-24 15:03:40,704 INFO L226 Difference]: Without dead ends: 23 [2020-10-24 15:03:40,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 15:03:40,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-24 15:03:40,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-24 15:03:40,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-24 15:03:40,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2020-10-24 15:03:40,743 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 11 [2020-10-24 15:03:40,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:03:40,743 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2020-10-24 15:03:40,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 15:03:40,744 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2020-10-24 15:03:40,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 15:03:40,745 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:03:40,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:03:40,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 15:03:40,745 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:03:40,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:03:40,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1606884976, now seen corresponding path program 1 times [2020-10-24 15:03:40,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 15:03:40,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506468056] [2020-10-24 15:03:40,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 15:03:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 15:03:40,824 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 15:03:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 15:03:40,871 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 15:03:40,898 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 15:03:40,898 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 15:03:40,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 15:03:40,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:03:40 BoogieIcfgContainer [2020-10-24 15:03:40,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 15:03:40,932 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 15:03:40,932 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 15:03:40,933 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 15:03:40,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:03:40" (3/4) ... [2020-10-24 15:03:40,936 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 15:03:40,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 15:03:40,939 INFO L168 Benchmark]: Toolchain (without parser) took 1642.04 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 14.8 MB in the beginning and 28.8 MB in the end (delta: -14.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:03:40,940 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 37.7 MB. Free memory was 22.5 MB in the beginning and 22.4 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:03:40,941 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.87 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 14.2 MB in the beginning and 31.1 MB in the end (delta: -17.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2020-10-24 15:03:40,942 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.43 ms. Allocated memory is still 46.1 MB. Free memory was 31.1 MB in the beginning and 29.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:03:40,942 INFO L168 Benchmark]: Boogie Preprocessor took 55.08 ms. Allocated memory is still 46.1 MB. Free memory was 29.5 MB in the beginning and 28.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 15:03:40,943 INFO L168 Benchmark]: RCFGBuilder took 627.78 ms. Allocated memory is still 46.1 MB. Free memory was 27.9 MB in the beginning and 19.4 MB in the end (delta: 8.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2020-10-24 15:03:40,944 INFO L168 Benchmark]: TraceAbstraction took 574.99 ms. Allocated memory is still 46.1 MB. Free memory was 19.0 MB in the beginning and 29.3 MB in the end (delta: -10.3 MB). Peak memory consumption was 861.8 kB. Max. memory is 16.1 GB. [2020-10-24 15:03:40,945 INFO L168 Benchmark]: Witness Printer took 4.38 ms. Allocated memory is still 46.1 MB. Free memory was 29.3 MB in the beginning and 28.8 MB in the end (delta: 475.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:03:40,950 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 37.7 MB. Free memory was 22.5 MB in the beginning and 22.4 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 319.87 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 14.2 MB in the beginning and 31.1 MB in the end (delta: -17.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.43 ms. Allocated memory is still 46.1 MB. Free memory was 31.1 MB in the beginning and 29.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.08 ms. Allocated memory is still 46.1 MB. Free memory was 29.5 MB in the beginning and 28.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 627.78 ms. Allocated memory is still 46.1 MB. Free memory was 27.9 MB in the beginning and 19.4 MB in the end (delta: 8.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 574.99 ms. Allocated memory is still 46.1 MB. Free memory was 19.0 MB in the beginning and 29.3 MB in the end (delta: -10.3 MB). Peak memory consumption was 861.8 kB. Max. memory is 16.1 GB. * Witness Printer took 4.38 ms. Allocated memory is still 46.1 MB. Free memory was 29.3 MB in the beginning and 28.8 MB in the end (delta: 475.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 36, overapproximation of bitwiseAnd at line 37, overapproximation of someBinaryArithmeticDOUBLE_SMToperation at line 76, overapproximation of someBinaryDOUBLE_SMTComparisonOperation at line 17. Possible FailurePath: [L76] double x = 0.0 / 0.0; [L20] __int32_t msw, exponent_less_1023; [L21] __uint32_t lsw; [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (msw) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lsw) = ew_u.parts.lsw [L28] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L29] COND TRUE exponent_less_1023 < 20 [L30] COND FALSE !(exponent_less_1023 < 0) [L36] __uint32_t exponent_mask = 0x000fffff >> exponent_less_1023; [L37] COND TRUE (msw & exponent_mask) == 0 && lsw == 0 [L38] return x; [L77] double res = round_double(x); [L17] return x != x; [L80] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_1031.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 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: 33 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=27occurred 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-ee8e70e [2020-10-24 15:03:43,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 15:03:43,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 15:03:43,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 15:03:43,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 15:03:43,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 15:03:43,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 15:03:43,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 15:03:43,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 15:03:43,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 15:03:43,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 15:03:43,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 15:03:43,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 15:03:43,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 15:03:43,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 15:03:43,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 15:03:43,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 15:03:43,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 15:03:43,548 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 15:03:43,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 15:03:43,563 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 15:03:43,565 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 15:03:43,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 15:03:43,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 15:03:43,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 15:03:43,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 15:03:43,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 15:03:43,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 15:03:43,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 15:03:43,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 15:03:43,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 15:03:43,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 15:03:43,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 15:03:43,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 15:03:43,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 15:03:43,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 15:03:43,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 15:03:43,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 15:03:43,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 15:03:43,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 15:03:43,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 15:03:43,593 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 15:03:43,643 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 15:03:43,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 15:03:43,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 15:03:43,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 15:03:43,648 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 15:03:43,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 15:03:43,648 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 15:03:43,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 15:03:43,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 15:03:43,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 15:03:43,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 15:03:43,650 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 15:03:43,651 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 15:03:43,651 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 15:03:43,651 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 15:03:43,651 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 15:03:43,652 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 15:03:43,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 15:03:43,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 15:03:43,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 15:03:43,653 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 15:03:43,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 15:03:43,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:03:43,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 15:03:43,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 15:03:43,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 15:03:43,654 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 15:03:43,655 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 15:03:43,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 15:03:43,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 15:03:43,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 15:03:43,656 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c4d19baf0429684b688f90d909ef640d9fb6537 [2020-10-24 15:03:44,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 15:03:44,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 15:03:44,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 15:03:44,074 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 15:03:44,075 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 15:03:44,075 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1031.c [2020-10-24 15:03:44,163 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b4c36b679/53b7b63360364632aa029d562b3cd6fc/FLAG3aedc06d8 [2020-10-24 15:03:44,804 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 15:03:44,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1031.c [2020-10-24 15:03:44,814 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b4c36b679/53b7b63360364632aa029d562b3cd6fc/FLAG3aedc06d8 [2020-10-24 15:03:45,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b4c36b679/53b7b63360364632aa029d562b3cd6fc [2020-10-24 15:03:45,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 15:03:45,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 15:03:45,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 15:03:45,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 15:03:45,204 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 15:03:45,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:03:45" (1/1) ... [2020-10-24 15:03:45,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e7a0fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:45, skipping insertion in model container [2020-10-24 15:03:45,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:03:45" (1/1) ... [2020-10-24 15:03:45,217 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 15:03:45,240 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 15:03:45,424 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:03:45,440 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 15:03:45,474 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:03:45,502 INFO L217 MainTranslator]: Completed translation [2020-10-24 15:03:45,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:45 WrapperNode [2020-10-24 15:03:45,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 15:03:45,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 15:03:45,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 15:03:45,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 15:03:45,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:45" (1/1) ... [2020-10-24 15:03:45,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:45" (1/1) ... [2020-10-24 15:03:45,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 15:03:45,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 15:03:45,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 15:03:45,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 15:03:45,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:45" (1/1) ... [2020-10-24 15:03:45,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:45" (1/1) ... [2020-10-24 15:03:45,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:45" (1/1) ... [2020-10-24 15:03:45,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:45" (1/1) ... [2020-10-24 15:03:45,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:45" (1/1) ... [2020-10-24 15:03:45,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:45" (1/1) ... [2020-10-24 15:03:45,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:45" (1/1) ... [2020-10-24 15:03:45,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 15:03:45,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 15:03:45,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 15:03:45,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 15:03:45,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:45" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:03:45,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-10-24 15:03:45,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-24 15:03:45,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-24 15:03:45,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 15:03:45,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 15:03:45,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 15:03:45,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 15:03:45,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 15:03:45,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 15:03:45,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 15:03:46,499 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 15:03:46,500 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-10-24 15:03:46,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:03:46 BoogieIcfgContainer [2020-10-24 15:03:46,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 15:03:46,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 15:03:46,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 15:03:46,508 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 15:03:46,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:03:45" (1/3) ... [2020-10-24 15:03:46,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f295a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:03:46, skipping insertion in model container [2020-10-24 15:03:46,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:03:45" (2/3) ... [2020-10-24 15:03:46,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f295a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:03:46, skipping insertion in model container [2020-10-24 15:03:46,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:03:46" (3/3) ... [2020-10-24 15:03:46,512 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1031.c [2020-10-24 15:03:46,525 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 15:03:46,531 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 15:03:46,547 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 15:03:46,588 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 15:03:46,589 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 15:03:46,589 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 15:03:46,589 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 15:03:46,589 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 15:03:46,589 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 15:03:46,590 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 15:03:46,590 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 15:03:46,611 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-10-24 15:03:46,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 15:03:46,617 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:03:46,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:03:46,618 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:03:46,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:03:46,625 INFO L82 PathProgramCache]: Analyzing trace with hash 2068161395, now seen corresponding path program 1 times [2020-10-24 15:03:46,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 15:03:46,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [86718250] [2020-10-24 15:03:46,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 15:03:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:03:47,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 15:03:47,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 15:03:47,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:03:47,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 15:03:47,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:03:47,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [86718250] [2020-10-24 15:03:47,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:03:47,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 15:03:47,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558423271] [2020-10-24 15:03:47,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 15:03:47,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 15:03:47,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 15:03:47,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 15:03:47,673 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2020-10-24 15:03:47,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:03:47,692 INFO L93 Difference]: Finished difference Result 51 states and 75 transitions. [2020-10-24 15:03:47,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 15:03:47,694 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-10-24 15:03:47,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:03:47,703 INFO L225 Difference]: With dead ends: 51 [2020-10-24 15:03:47,704 INFO L226 Difference]: Without dead ends: 23 [2020-10-24 15:03:47,707 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 [2020-10-24 15:03:47,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-24 15:03:47,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-24 15:03:47,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-24 15:03:47,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2020-10-24 15:03:47,746 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 11 [2020-10-24 15:03:47,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:03:47,747 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2020-10-24 15:03:47,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 15:03:47,747 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2020-10-24 15:03:47,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 15:03:47,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:03:47,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:03:47,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 15:03:47,964 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:03:47,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:03:47,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1606884976, now seen corresponding path program 1 times [2020-10-24 15:03:47,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 15:03:47,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1377330295] [2020-10-24 15:03:47,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-24 15:03:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:03:48,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-24 15:03:48,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 15:03:55,406 WARN L193 SmtUtils]: Spent 2.18 s on a formula simplification that was a NOOP. DAG size: 23 [2020-10-24 15:04:06,332 WARN L193 SmtUtils]: Spent 2.21 s on a formula simplification that was a NOOP. DAG size: 26 [2020-10-24 15:04:08,557 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_round_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet15_6| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_6|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet15_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet15_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet15_6|)))) (and (= (bvadd (bvashr (bvand (_ bv2146435072 32) ((_ extract 63 32) ULTIMATE.start_round_double_~x)) (_ bv20 32)) (_ bv4294966273 32)) c_ULTIMATE.start_round_double_~exponent_less_1023~0) (= .cse0 (_ +zero 11 53)) (= .cse1 (_ +zero 11 53)) (= (fp.div roundNearestTiesToEven .cse1 .cse0) (fp ((_ extract 63 63) ULTIMATE.start_round_double_~x) ((_ extract 62 52) ULTIMATE.start_round_double_~x) ((_ extract 51 0) ULTIMATE.start_round_double_~x)))))) is different from false [2020-10-24 15:04:08,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:04:08,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 15:04:19,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:04:19,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1377330295] [2020-10-24 15:04:19,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:04:19,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-24 15:04:19,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745364156] [2020-10-24 15:04:19,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 15:04:19,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 15:04:19,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 15:04:19,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=4, NotChecked=12, Total=72 [2020-10-24 15:04:19,810 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand 9 states. [2020-10-24 15:04:22,073 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet14_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet15_6| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_6|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet15_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet15_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet15_6|)))) (and (= .cse0 (_ +zero 11 53)) (= .cse1 (_ +zero 11 53)) (= (fp.div roundNearestTiesToEven .cse1 .cse0) (fp ((_ extract 63 63) c_ULTIMATE.start_round_double_~x) ((_ extract 62 52) c_ULTIMATE.start_round_double_~x) ((_ extract 51 0) c_ULTIMATE.start_round_double_~x)))))) (= roundNearestTiesToEven c_~CRM)) is different from false [2020-10-24 15:04:25,634 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_round_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet15_6| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_6|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet15_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet15_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet15_6|)))) (and (= (bvadd (bvashr (bvand (_ bv2146435072 32) ((_ extract 63 32) ULTIMATE.start_round_double_~x)) (_ bv20 32)) (_ bv4294966273 32)) c_ULTIMATE.start_round_double_~exponent_less_1023~0) (= .cse0 (_ +zero 11 53)) (= .cse1 (_ +zero 11 53)) (= (fp.div roundNearestTiesToEven .cse1 .cse0) (fp ((_ extract 63 63) ULTIMATE.start_round_double_~x) ((_ extract 62 52) ULTIMATE.start_round_double_~x) ((_ extract 51 0) ULTIMATE.start_round_double_~x)))))) (exists ((ULTIMATE.start_round_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet15_6| (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_6|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet15_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet15_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet15_6|)))) (and (= ((_ extract 63 32) ULTIMATE.start_round_double_~x) c_ULTIMATE.start_round_double_~msw~0) (= .cse2 (_ +zero 11 53)) (= .cse3 (_ +zero 11 53)) (= (fp.div roundNearestTiesToEven .cse3 .cse2) (fp ((_ extract 63 63) ULTIMATE.start_round_double_~x) ((_ extract 62 52) ULTIMATE.start_round_double_~x) ((_ extract 51 0) ULTIMATE.start_round_double_~x)))))) (not (bvslt c_ULTIMATE.start_round_double_~exponent_less_1023~0 (_ bv20 32)))) is different from false [2020-10-24 15:04:26,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:04:26,026 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-10-24 15:04:26,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 15:04:26,028 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2020-10-24 15:04:26,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:04:26,032 INFO L225 Difference]: With dead ends: 36 [2020-10-24 15:04:26,032 INFO L226 Difference]: Without dead ends: 24 [2020-10-24 15:04:26,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 35.4s TimeCoverageRelationStatistics Valid=21, Invalid=41, Unknown=6, NotChecked=42, Total=110 [2020-10-24 15:04:26,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-24 15:04:26,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 19. [2020-10-24 15:04:26,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-24 15:04:26,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2020-10-24 15:04:26,046 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 12 [2020-10-24 15:04:26,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:04:26,046 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2020-10-24 15:04:26,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 15:04:26,048 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2020-10-24 15:04:26,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 15:04:26,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:04:26,050 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:04:26,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 15:04:26,264 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:04:26,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:04:26,266 INFO L82 PathProgramCache]: Analyzing trace with hash -504732444, now seen corresponding path program 1 times [2020-10-24 15:04:26,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 15:04:26,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1228443942] [2020-10-24 15:04:26,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-24 15:04:27,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:04:27,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-24 15:04:27,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 15:04:32,618 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification that was a NOOP. DAG size: 23 [2020-10-24 15:04:44,171 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification that was a NOOP. DAG size: 26 [2020-10-24 15:05:04,109 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification that was a NOOP. DAG size: 32 [2020-10-24 15:05:19,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:05:19,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 15:05:29,849 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-10-24 15:05:35,390 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-10-24 15:05:39,964 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-10-24 15:05:40,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:05:40,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1228443942] [2020-10-24 15:05:40,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:05:40,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 10 [2020-10-24 15:05:40,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282646237] [2020-10-24 15:05:40,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 15:05:40,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 15:05:40,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 15:05:40,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=57, Unknown=11, NotChecked=0, Total=90 [2020-10-24 15:05:40,930 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 10 states. [2020-10-24 15:06:06,620 WARN L193 SmtUtils]: Spent 6.16 s on a formula simplification that was a NOOP. DAG size: 26 [2020-10-24 15:06:11,577 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_round_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet15_8| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_8|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet15_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet15_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet15_8|)))) (and (= ((_ extract 63 32) ULTIMATE.start_round_double_~x) c_ULTIMATE.start_round_double_~msw~0) (= (_ +zero 11 53) .cse0) (= (_ +zero 11 53) .cse1) (= (fp ((_ extract 63 63) ULTIMATE.start_round_double_~x) ((_ extract 62 52) ULTIMATE.start_round_double_~x) ((_ extract 51 0) ULTIMATE.start_round_double_~x)) (fp.div roundNearestTiesToEven .cse0 .cse1))))) (exists ((|v_ULTIMATE.start_main_#t~nondet14_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet15_8| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_8|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet15_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet15_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet15_8|)))) (and (= (_ +zero 11 53) .cse2) (= (_ +zero 11 53) .cse3) (= (fp ((_ extract 63 63) c_ULTIMATE.start_round_double_~x) ((_ extract 62 52) c_ULTIMATE.start_round_double_~x) ((_ extract 51 0) c_ULTIMATE.start_round_double_~x)) (fp.div roundNearestTiesToEven .cse2 .cse3)))))) is different from false [2020-10-24 15:06:16,059 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_round_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet15_8| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_8|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet15_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet15_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet15_8|)))) (and (= (bvadd (bvashr (bvand (_ bv2146435072 32) ((_ extract 63 32) ULTIMATE.start_round_double_~x)) (_ bv20 32)) (_ bv4294966273 32)) c_ULTIMATE.start_round_double_~exponent_less_1023~0) (= (_ +zero 11 53) .cse0) (= (_ +zero 11 53) .cse1) (= (fp ((_ extract 63 63) ULTIMATE.start_round_double_~x) ((_ extract 62 52) ULTIMATE.start_round_double_~x) ((_ extract 51 0) ULTIMATE.start_round_double_~x)) (fp.div roundNearestTiesToEven .cse0 .cse1))))) (exists ((ULTIMATE.start_round_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet15_8| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_8|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet15_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet15_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet15_8|)))) (and (= ((_ extract 63 32) ULTIMATE.start_round_double_~x) c_ULTIMATE.start_round_double_~msw~0) (= (_ +zero 11 53) .cse2) (= (_ +zero 11 53) .cse3) (= (fp ((_ extract 63 63) ULTIMATE.start_round_double_~x) ((_ extract 62 52) ULTIMATE.start_round_double_~x) ((_ extract 51 0) ULTIMATE.start_round_double_~x)) (fp.div roundNearestTiesToEven .cse2 .cse3)))))) is different from false [2020-10-24 15:06:21,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:06:21,345 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2020-10-24 15:06:21,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-24 15:06:21,522 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2020-10-24 15:06:21,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:06:21,523 INFO L225 Difference]: With dead ends: 24 [2020-10-24 15:06:21,523 INFO L226 Difference]: Without dead ends: 13 [2020-10-24 15:06:21,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 104.4s TimeCoverageRelationStatistics Valid=31, Invalid=69, Unknown=18, NotChecked=38, Total=156 [2020-10-24 15:06:21,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-10-24 15:06:21,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-10-24 15:06:21,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-24 15:06:21,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2020-10-24 15:06:21,528 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 12 [2020-10-24 15:06:21,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:06:21,528 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2020-10-24 15:06:21,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 15:06:21,529 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2020-10-24 15:06:21,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 15:06:21,530 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:06:21,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 15:06:21,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 15:06:21,731 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:06:21,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:06:21,732 INFO L82 PathProgramCache]: Analyzing trace with hash -711601148, now seen corresponding path program 1 times [2020-10-24 15:06:21,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 15:06:21,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730947177] [2020-10-24 15:06:21,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-24 15:06:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:06:22,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 16 conjunts are in the unsatisfiable core [2020-10-24 15:06:22,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 15:06:30,915 WARN L193 SmtUtils]: Spent 6.25 s on a formula simplification that was a NOOP. DAG size: 26 [2020-10-24 15:06:33,115 WARN L838 $PredicateComparison]: unable to prove that (and (= ((_ extract 63 32) c_ULTIMATE.start_round_double_~x) c_ULTIMATE.start_round_double_~msw~0) (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet15_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_10| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_10|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet15_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet15_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet15_10|)))) (and (= (_ +zero 11 53) .cse0) (= (fp.div c_~CRM .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_round_double_~x) ((_ extract 62 52) c_ULTIMATE.start_round_double_~x) ((_ extract 51 0) c_ULTIMATE.start_round_double_~x))) (= (_ +zero 11 53) .cse1))))) is different from false [2020-10-24 15:06:43,309 WARN L193 SmtUtils]: Spent 5.89 s on a formula simplification that was a NOOP. DAG size: 35 [2020-10-24 15:06:45,551 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_round_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet15_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_10| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_10|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet15_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet15_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet15_10|))) (.cse2 (fp ((_ extract 63 63) ULTIMATE.start_round_double_~x) ((_ extract 62 52) ULTIMATE.start_round_double_~x) ((_ extract 51 0) ULTIMATE.start_round_double_~x)))) (and (= (fp.div roundNearestTiesToEven .cse0 .cse1) .cse2) (= (_ bv2047 32) (bvashr (bvand (_ bv2146435072 32) ((_ extract 63 32) ULTIMATE.start_round_double_~x)) (_ bv20 32))) (= (_ +zero 11 53) .cse0) (= (_ +zero 11 53) .cse1) (= (fp.add roundNearestTiesToEven .cse2 .cse2) (fp ((_ extract 63 63) |c_ULTIMATE.start_round_double_#res|) ((_ extract 62 52) |c_ULTIMATE.start_round_double_#res|) ((_ extract 51 0) |c_ULTIMATE.start_round_double_#res|)))))) is different from false [2020-10-24 15:06:45,589 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 15:06:53,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:06:53,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 15:07:07,623 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-10-24 15:07:09,660 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-10-24 15:07:11,552 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-10-24 15:07:12,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:07:12,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730947177] [2020-10-24 15:07:12,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:07:12,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2020-10-24 15:07:12,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413875672] [2020-10-24 15:07:12,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-24 15:07:12,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 15:07:12,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-24 15:07:12,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=121, Unknown=5, NotChecked=46, Total=210 [2020-10-24 15:07:12,762 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand 15 states. [2020-10-24 15:07:18,037 WARN L838 $PredicateComparison]: unable to prove that (and (= ((_ extract 63 32) c_ULTIMATE.start_round_double_~x) c_ULTIMATE.start_round_double_~msw~0) (or (not (= (_ bv2047 32) (bvashr (bvand (_ bv2146435072 32) c_ULTIMATE.start_round_double_~msw~0) (_ bv20 32)))) (forall ((|v_ULTIMATE.start_round_double_#res_13| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_round_double_#res_13|) ((_ extract 62 52) |v_ULTIMATE.start_round_double_#res_13|) ((_ extract 51 0) |v_ULTIMATE.start_round_double_#res_13|)))) (or (not (fp.eq .cse0 .cse0)) (not (= .cse0 (let ((.cse1 (fp ((_ extract 63 63) c_ULTIMATE.start_round_double_~x) ((_ extract 62 52) c_ULTIMATE.start_round_double_~x) ((_ extract 51 0) c_ULTIMATE.start_round_double_~x)))) (fp.add c_~CRM .cse1 .cse1)))))))) (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet15_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_10| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_10|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet15_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet15_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet15_10|)))) (and (= (_ +zero 11 53) .cse2) (= (fp.div c_~CRM .cse2 .cse3) (fp ((_ extract 63 63) c_ULTIMATE.start_round_double_~x) ((_ extract 62 52) c_ULTIMATE.start_round_double_~x) ((_ extract 51 0) c_ULTIMATE.start_round_double_~x))) (= (_ +zero 11 53) .cse3))))) is different from false [2020-10-24 15:07:29,151 WARN L838 $PredicateComparison]: unable to prove that (and (= (bvadd (bvashr (bvand (_ bv2146435072 32) ((_ extract 63 32) c_ULTIMATE.start_round_double_~x)) (_ bv20 32)) (_ bv4294966273 32)) c_ULTIMATE.start_round_double_~exponent_less_1023~0) (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet15_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_10| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_10|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet15_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet15_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet15_10|)))) (and (= (_ +zero 11 53) .cse0) (= (fp.div c_~CRM .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_round_double_~x) ((_ extract 62 52) c_ULTIMATE.start_round_double_~x) ((_ extract 51 0) c_ULTIMATE.start_round_double_~x))) (= (_ +zero 11 53) .cse1)))) (exists ((ULTIMATE.start_round_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet15_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet14_10| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet14_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet14_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet14_10|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet15_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet15_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet15_10|))) (.cse4 (fp ((_ extract 63 63) ULTIMATE.start_round_double_~x) ((_ extract 62 52) ULTIMATE.start_round_double_~x) ((_ extract 51 0) ULTIMATE.start_round_double_~x)))) (and (= (fp.div roundNearestTiesToEven .cse2 .cse3) .cse4) (= (_ bv2047 32) (bvashr (bvand (_ bv2146435072 32) ((_ extract 63 32) ULTIMATE.start_round_double_~x)) (_ bv20 32))) (= (_ +zero 11 53) .cse2) (= (_ +zero 11 53) .cse3) (= (fp.add roundNearestTiesToEven .cse4 .cse4) (fp ((_ extract 63 63) |c_ULTIMATE.start_round_double_#res|) ((_ extract 62 52) |c_ULTIMATE.start_round_double_#res|) ((_ extract 51 0) |c_ULTIMATE.start_round_double_#res|)))))) (not (let ((.cse5 (fp ((_ extract 63 63) |c_ULTIMATE.start_round_double_#res|) ((_ extract 62 52) |c_ULTIMATE.start_round_double_#res|) ((_ extract 51 0) |c_ULTIMATE.start_round_double_#res|)))) (fp.eq .cse5 .cse5)))) is different from false [2020-10-24 15:07:29,900 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-10-24 15:07:29,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:07:29,902 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-10-24 15:07:29,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-24 15:07:29,902 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 12 [2020-10-24 15:07:29,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:07:29,902 INFO L225 Difference]: With dead ends: 13 [2020-10-24 15:07:29,902 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 15:07:29,903 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 55.6s TimeCoverageRelationStatistics Valid=48, Invalid=143, Unknown=7, NotChecked=108, Total=306 [2020-10-24 15:07:29,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 15:07:29,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 15:07:29,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 15:07:29,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 15:07:29,904 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-10-24 15:07:29,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:07:29,904 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 15:07:29,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-24 15:07:29,904 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 15:07:29,905 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 15:07:30,105 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 15:07:30,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 15:07:37,426 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-10-24 15:07:37,428 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.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:626) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:164) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:134) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:221) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter(HoareAnnotationComposer.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.(HoareAnnotationComposer.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeCFGHoareAnnotation(BasicCegarLoop.java:1052) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) 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) ... 34 more [2020-10-24 15:07:37,433 INFO L168 Benchmark]: Toolchain (without parser) took 232245.46 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.4 MB in the beginning and 32.8 MB in the end (delta: -11.4 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2020-10-24 15:07:37,435 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 44.0 MB. Free memory was 29.6 MB in the beginning and 29.6 MB in the end (delta: 52.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:07:37,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.49 ms. Allocated memory is still 44.0 MB. Free memory was 20.8 MB in the beginning and 20.5 MB in the end (delta: 326.7 kB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-24 15:07:37,436 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.67 ms. Allocated memory is still 44.0 MB. Free memory was 20.5 MB in the beginning and 28.4 MB in the end (delta: -8.0 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2020-10-24 15:07:37,437 INFO L168 Benchmark]: Boogie Preprocessor took 39.59 ms. Allocated memory is still 44.0 MB. Free memory was 28.4 MB in the beginning and 26.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 15:07:37,439 INFO L168 Benchmark]: RCFGBuilder took 902.16 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 26.8 MB in the beginning and 28.4 MB in the end (delta: -1.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2020-10-24 15:07:37,440 INFO L168 Benchmark]: TraceAbstraction took 230928.14 ms. Allocated memory is still 54.5 MB. Free memory was 27.9 MB in the beginning and 32.8 MB in the end (delta: -4.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:07:37,447 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 44.0 MB. Free memory was 29.6 MB in the beginning and 29.6 MB in the end (delta: 52.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 303.49 ms. Allocated memory is still 44.0 MB. Free memory was 20.8 MB in the beginning and 20.5 MB in the end (delta: 326.7 kB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.67 ms. Allocated memory is still 44.0 MB. Free memory was 20.5 MB in the beginning and 28.4 MB in the end (delta: -8.0 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.59 ms. Allocated memory is still 44.0 MB. Free memory was 28.4 MB in the beginning and 26.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 902.16 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 26.8 MB in the beginning and 28.4 MB in the end (delta: -1.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 230928.14 ms. Allocated memory is still 54.5 MB. Free memory was 27.9 MB in the beginning and 32.8 MB in the end (delta: -4.8 MB). There was no memory consumed. 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...