./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2880296f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e37ba74c70ee452f780b10cba83059c905066e35 ................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e37ba74c70ee452f780b10cba83059c905066e35 ................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 15:33:37,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:33:37,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:33:37,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:33:37,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:33:37,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:33:37,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:33:37,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:33:37,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:33:37,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:33:37,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:33:37,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:33:37,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:33:37,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:33:37,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:33:37,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:33:37,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:33:37,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:33:37,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:33:37,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:33:37,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:33:37,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:33:37,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:33:37,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:33:37,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:33:37,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:33:37,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:33:37,590 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:33:37,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:33:37,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:33:37,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:33:37,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:33:37,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:33:37,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:33:37,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:33:37,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:33:37,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:33:37,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:33:37,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:33:37,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:33:37,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:33:37,616 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 15:33:37,676 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:33:37,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:33:37,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:33:37,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:33:37,682 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:33:37,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:33:37,683 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:33:37,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 15:33:37,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:33:37,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:33:37,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:33:37,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:33:37,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:33:37,687 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:33:37,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:33:37,687 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:33:37,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:33:37,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:33:37,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:33:37,688 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:33:37,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:33:37,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:33:37,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:33:37,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:33:37,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:33:37,690 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 15:33:37,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 15:33:37,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:33:37,691 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:33:37,691 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e37ba74c70ee452f780b10cba83059c905066e35 [2020-12-02 15:33:38,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:33:38,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:33:38,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:33:38,200 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:33:38,201 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:33:38,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122b.c [2020-12-02 15:33:38,306 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9a02e000/7cdbf032628741009076fa8fc35ba8c3/FLAG459e90045 [2020-12-02 15:33:39,135 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:33:39,136 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1122b.c [2020-12-02 15:33:39,152 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9a02e000/7cdbf032628741009076fa8fc35ba8c3/FLAG459e90045 [2020-12-02 15:33:39,424 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9a02e000/7cdbf032628741009076fa8fc35ba8c3 [2020-12-02 15:33:39,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:33:39,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:33:39,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:33:39,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:33:39,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:33:39,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:33:39" (1/1) ... [2020-12-02 15:33:39,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b9770e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:39, skipping insertion in model container [2020-12-02 15:33:39,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:33:39" (1/1) ... [2020-12-02 15:33:39,496 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:33:39,560 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:33:39,866 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1122b.c[3907,3920] [2020-12-02 15:33:39,877 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:33:39,897 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:33:40,038 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1122b.c[3907,3920] [2020-12-02 15:33:40,040 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:33:40,068 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:33:40,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:40 WrapperNode [2020-12-02 15:33:40,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:33:40,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:33:40,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:33:40,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:33:40,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:40" (1/1) ... [2020-12-02 15:33:40,097 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:40" (1/1) ... [2020-12-02 15:33:40,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:33:40,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:33:40,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:33:40,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:33:40,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:40" (1/1) ... [2020-12-02 15:33:40,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:40" (1/1) ... [2020-12-02 15:33:40,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:40" (1/1) ... [2020-12-02 15:33:40,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:40" (1/1) ... [2020-12-02 15:33:40,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:40" (1/1) ... [2020-12-02 15:33:40,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:40" (1/1) ... [2020-12-02 15:33:40,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:40" (1/1) ... [2020-12-02 15:33:40,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:33:40,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:33:40,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:33:40,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:33:40,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:33:40,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 15:33:40,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:33:40,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 15:33:40,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-02 15:33:40,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-02 15:33:40,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:33:40,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:33:40,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-02 15:33:40,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-02 15:33:40,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:33:41,195 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:33:41,195 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-02 15:33:41,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:41 BoogieIcfgContainer [2020-12-02 15:33:41,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:33:41,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:33:41,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:33:41,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:33:41,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:33:39" (1/3) ... [2020-12-02 15:33:41,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296690c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:33:41, skipping insertion in model container [2020-12-02 15:33:41,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:40" (2/3) ... [2020-12-02 15:33:41,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@296690c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:33:41, skipping insertion in model container [2020-12-02 15:33:41,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:41" (3/3) ... [2020-12-02 15:33:41,210 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122b.c [2020-12-02 15:33:41,227 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:33:41,233 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:33:41,247 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:33:41,278 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:33:41,279 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:33:41,279 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:33:41,279 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:33:41,279 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:33:41,279 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:33:41,280 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:33:41,280 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:33:41,297 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-12-02 15:33:41,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 15:33:41,304 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:33:41,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:33:41,306 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:33:41,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:33:41,313 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-12-02 15:33:41,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 15:33:41,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95639047] [2020-12-02 15:33:41,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 15:33:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:33:41,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:33:41,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95639047] [2020-12-02 15:33:41,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:33:41,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 15:33:41,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466821016] [2020-12-02 15:33:41,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:33:41,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 15:33:41,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:33:41,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:33:41,605 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2020-12-02 15:33:41,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:33:41,657 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2020-12-02 15:33:41,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:33:41,660 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-02 15:33:41,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:33:41,687 INFO L225 Difference]: With dead ends: 108 [2020-12-02 15:33:41,687 INFO L226 Difference]: Without dead ends: 52 [2020-12-02 15:33:41,691 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:33:41,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-02 15:33:41,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-02 15:33:41,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-02 15:33:41,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-12-02 15:33:41,753 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-12-02 15:33:41,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:33:41,754 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-12-02 15:33:41,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:33:41,755 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-12-02 15:33:41,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 15:33:41,756 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:33:41,756 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:33:41,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 15:33:41,759 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:33:41,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:33:41,762 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-12-02 15:33:41,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 15:33:41,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907942074] [2020-12-02 15:33:41,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 15:33:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:33:41,930 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:33:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:33:42,001 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:33:42,065 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 15:33:42,066 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 15:33:42,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 15:33:42,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:33:42 BoogieIcfgContainer [2020-12-02 15:33:42,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 15:33:42,135 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 15:33:42,135 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 15:33:42,136 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 15:33:42,137 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:41" (3/4) ... [2020-12-02 15:33:42,142 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 15:33:42,142 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 15:33:42,148 INFO L168 Benchmark]: Toolchain (without parser) took 2712.55 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.1 MB in the beginning and 19.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2020-12-02 15:33:42,150 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 35.7 MB. Free memory was 22.0 MB in the beginning and 21.9 MB in the end (delta: 30.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:33:42,153 INFO L168 Benchmark]: CACSL2BoogieTranslator took 634.62 ms. Allocated memory is still 44.0 MB. Free memory was 20.9 MB in the beginning and 26.2 MB in the end (delta: -5.3 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. [2020-12-02 15:33:42,154 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.07 ms. Allocated memory is still 44.0 MB. Free memory was 26.2 MB in the beginning and 23.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:33:42,156 INFO L168 Benchmark]: Boogie Preprocessor took 102.48 ms. Allocated memory is still 44.0 MB. Free memory was 23.8 MB in the beginning and 21.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:33:42,158 INFO L168 Benchmark]: RCFGBuilder took 953.35 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.5 MB in the beginning and 31.4 MB in the end (delta: -9.8 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. [2020-12-02 15:33:42,160 INFO L168 Benchmark]: TraceAbstraction took 933.01 ms. Allocated memory is still 54.5 MB. Free memory was 31.1 MB in the beginning and 20.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:33:42,162 INFO L168 Benchmark]: Witness Printer took 7.33 ms. Allocated memory is still 54.5 MB. Free memory was 20.3 MB in the beginning and 19.9 MB in the end (delta: 328.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:33:42,177 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 35.7 MB. Free memory was 22.0 MB in the beginning and 21.9 MB in the end (delta: 30.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 634.62 ms. Allocated memory is still 44.0 MB. Free memory was 20.9 MB in the beginning and 26.2 MB in the end (delta: -5.3 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.07 ms. Allocated memory is still 44.0 MB. Free memory was 26.2 MB in the beginning and 23.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 102.48 ms. Allocated memory is still 44.0 MB. Free memory was 23.8 MB in the beginning and 21.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 953.35 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.5 MB in the beginning and 31.4 MB in the end (delta: -9.8 MB). Peak memory consumption was 10.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 933.01 ms. Allocated memory is still 54.5 MB. Free memory was 31.1 MB in the beginning and 20.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.1 GB. * Witness Printer took 7.33 ms. Allocated memory is still 54.5 MB. Free memory was 20.3 MB in the beginning and 19.9 MB in the end (delta: 328.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 178]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLE_SMToperation at line 22, overapproximation of bitwiseOr at line 46, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLE_SMToperation at line 47, overapproximation of someBinaryDOUBLE_SMTComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={9:0}] [L172] double x = -1.0 / 0.0; [L173] double y = __VERIFIER_nondet_double(); [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={9:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L174] double res = fmod_double(x, y); [L18] return x != x; VAL [one_fmod=1, Zero_fmod={9:0}] [L177] COND TRUE !isnan_double(res) [L178] reach_error() VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 81 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=55occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-2880296 [2020-12-02 15:33:45,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:33:45,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:33:45,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:33:45,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:33:45,272 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:33:45,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:33:45,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:33:45,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:33:45,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:33:45,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:33:45,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:33:45,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:33:45,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:33:45,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:33:45,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:33:45,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:33:45,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:33:45,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:33:45,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:33:45,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:33:45,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:33:45,328 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:33:45,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:33:45,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:33:45,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:33:45,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:33:45,336 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:33:45,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:33:45,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:33:45,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:33:45,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:33:45,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:33:45,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:33:45,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:33:45,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:33:45,351 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:33:45,351 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:33:45,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:33:45,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:33:45,354 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:33:45,356 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 15:33:45,384 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:33:45,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:33:45,387 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:33:45,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:33:45,388 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:33:45,388 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:33:45,389 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:33:45,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:33:45,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:33:45,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:33:45,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:33:45,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:33:45,391 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 15:33:45,391 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 15:33:45,392 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:33:45,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:33:45,392 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:33:45,392 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:33:45,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:33:45,393 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:33:45,393 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:33:45,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:33:45,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:33:45,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:33:45,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:33:45,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:33:45,396 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 15:33:45,396 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 15:33:45,396 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:33:45,397 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:33:45,397 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 15:33:45,397 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e37ba74c70ee452f780b10cba83059c905066e35 [2020-12-02 15:33:45,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:33:45,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:33:45,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:33:45,904 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:33:45,905 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:33:45,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122b.c [2020-12-02 15:33:45,990 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9052f7ad5/c3ed9d23bf1b4a07a48e2f0f51cef94b/FLAG32f1fc07d [2020-12-02 15:33:46,746 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:33:46,748 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1122b.c [2020-12-02 15:33:46,759 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9052f7ad5/c3ed9d23bf1b4a07a48e2f0f51cef94b/FLAG32f1fc07d [2020-12-02 15:33:47,050 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9052f7ad5/c3ed9d23bf1b4a07a48e2f0f51cef94b [2020-12-02 15:33:47,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:33:47,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:33:47,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:33:47,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:33:47,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:33:47,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:33:47" (1/1) ... [2020-12-02 15:33:47,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4637a4f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:47, skipping insertion in model container [2020-12-02 15:33:47,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:33:47" (1/1) ... [2020-12-02 15:33:47,094 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:33:47,121 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:33:47,373 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1122b.c[3907,3920] [2020-12-02 15:33:47,378 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:33:47,397 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:33:47,484 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1122b.c[3907,3920] [2020-12-02 15:33:47,485 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:33:47,525 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:33:47,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:47 WrapperNode [2020-12-02 15:33:47,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:33:47,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:33:47,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:33:47,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:33:47,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:47" (1/1) ... [2020-12-02 15:33:47,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:47" (1/1) ... [2020-12-02 15:33:47,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:33:47,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:33:47,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:33:47,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:33:47,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:47" (1/1) ... [2020-12-02 15:33:47,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:47" (1/1) ... [2020-12-02 15:33:47,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:47" (1/1) ... [2020-12-02 15:33:47,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:47" (1/1) ... [2020-12-02 15:33:47,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:47" (1/1) ... [2020-12-02 15:33:47,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:47" (1/1) ... [2020-12-02 15:33:47,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:47" (1/1) ... [2020-12-02 15:33:47,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:33:47,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:33:47,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:33:47,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:33:47,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:33:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 15:33:47,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-02 15:33:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-02 15:33:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 15:33:47,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:33:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-12-02 15:33:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 15:33:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:33:47,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:33:47,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 15:33:47,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:33:53,275 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:33:53,276 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-02 15:33:53,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:53 BoogieIcfgContainer [2020-12-02 15:33:53,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:33:53,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:33:53,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:33:53,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:33:53,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:33:47" (1/3) ... [2020-12-02 15:33:53,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ca4d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:33:53, skipping insertion in model container [2020-12-02 15:33:53,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:33:47" (2/3) ... [2020-12-02 15:33:53,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ca4d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:33:53, skipping insertion in model container [2020-12-02 15:33:53,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:33:53" (3/3) ... [2020-12-02 15:33:53,289 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122b.c [2020-12-02 15:33:53,306 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:33:53,311 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:33:53,325 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:33:53,355 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:33:53,356 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:33:53,356 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:33:53,356 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:33:53,356 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:33:53,357 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:33:53,357 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:33:53,357 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:33:53,374 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-12-02 15:33:53,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 15:33:53,385 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:33:53,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:33:53,387 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:33:53,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:33:53,394 INFO L82 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2020-12-02 15:33:53,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:33:53,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508647939] [2020-12-02 15:33:53,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-02 15:33:55,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:33:55,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 15:33:55,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:33:55,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:33:55,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:33:55,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:33:55,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1508647939] [2020-12-02 15:33:55,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:33:55,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 15:33:55,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390768774] [2020-12-02 15:33:55,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:33:55,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:33:55,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:33:55,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:33:55,690 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2020-12-02 15:33:55,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:33:55,715 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2020-12-02 15:33:55,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:33:55,717 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-02 15:33:55,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:33:55,727 INFO L225 Difference]: With dead ends: 108 [2020-12-02 15:33:55,728 INFO L226 Difference]: Without dead ends: 52 [2020-12-02 15:33:55,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:33:55,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-02 15:33:55,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-02 15:33:55,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-02 15:33:55,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2020-12-02 15:33:55,776 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2020-12-02 15:33:55,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:33:55,777 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2020-12-02 15:33:55,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:33:55,777 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2020-12-02 15:33:55,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 15:33:55,778 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:33:55,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:33:55,980 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 15:33:55,980 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:33:55,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:33:55,982 INFO L82 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2020-12-02 15:33:55,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:33:55,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864038014] [2020-12-02 15:33:55,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-02 15:33:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:33:58,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-02 15:33:58,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:34:05,261 WARN L197 SmtUtils]: Spent 5.46 s on a formula simplification that was a NOOP. DAG size: 35 [2020-12-02 15:34:07,804 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_#t~nondet33_6| (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#t~nondet20_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_6| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet31_6| (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#t~nondet19_6| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~y (_ BitVec 64))) (let ((.cse4 (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) ULTIMATE.start_fmod_double_~x)))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_6|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_6|))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_6|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|))) (.cse6 (fp.mul roundNearestTiesToEven .cse4 (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~y) ((_ extract 62 52) ULTIMATE.start_fmod_double_~y) ((_ extract 51 0) ULTIMATE.start_fmod_double_~y)))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|)))) (and (= (fp.neg .cse0) .cse1) (= (fp ((_ extract 63 63) |c_ULTIMATE.start_fmod_double_#res|) ((_ extract 62 52) |c_ULTIMATE.start_fmod_double_#res|) ((_ extract 51 0) |c_ULTIMATE.start_fmod_double_#res|)) (fp.div roundNearestTiesToEven .cse2 .cse3)) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) (= .cse4 (fp.div roundNearestTiesToEven .cse1 .cse5)) (= (_ +zero 11 53) .cse5) (= .cse6 .cse3) (= .cse6 .cse2))))) is different from false [2020-12-02 15:34:08,781 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 15:34:08,785 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-02 15:34:15,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:34:15,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:34:24,676 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_fmod_double_#t~nondet20_6| (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#t~nondet19_6| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~y (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#res_10| (_ BitVec 64))) (let ((.cse1 (fp.mul c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) c_ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) c_ULTIMATE.start_fmod_double_~x)) (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~y) ((_ extract 62 52) ULTIMATE.start_fmod_double_~y) ((_ extract 51 0) ULTIMATE.start_fmod_double_~y)))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#res_10|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#res_10|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#res_10|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|)))) (or (not (fp.eq .cse0 .cse0)) (not (= .cse1 .cse2)) (not (= .cse3 .cse1)) (not (= .cse0 (fp.div c_~CRM .cse2 .cse3)))))) is different from true [2020-12-02 15:34:28,112 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet33_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_6| (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#t~nondet20_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~x~0_4 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet31_6| (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#t~nondet19_6| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~y (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#res_10| (_ BitVec 64))) (let ((.cse6 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x~0_4) ((_ extract 62 52) v_ULTIMATE.start_main_~x~0_4) ((_ extract 51 0) v_ULTIMATE.start_main_~x~0_4)))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_6|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_6|))) (.cse2 (fp.mul c_~CRM .cse6 (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~y) ((_ extract 62 52) ULTIMATE.start_fmod_double_~y) ((_ extract 51 0) ULTIMATE.start_fmod_double_~y)))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_6|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#res_10|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#res_10|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#res_10|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|)))) (or (not (= (fp.neg .cse0) .cse1)) (not (= .cse2 .cse3)) (not (fp.eq .cse4 .cse4)) (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0)) (not (= (fp.div c_~CRM .cse1 .cse5) .cse6)) (not (= .cse2 .cse7)) (not (= (_ +zero 11 53) .cse5)) (not (= .cse4 (fp.div c_~CRM .cse3 .cse7))))))) is different from true [2020-12-02 15:34:28,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:34:28,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864038014] [2020-12-02 15:34:28,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:34:28,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-12-02 15:34:28,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279974202] [2020-12-02 15:34:28,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-02 15:34:28,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:34:28,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-02 15:34:28,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=55, Unknown=5, NotChecked=48, Total=132 [2020-12-02 15:34:28,133 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand 12 states. [2020-12-02 15:34:34,214 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (forall ((|v_ULTIMATE.start_fmod_double_#t~nondet20_6| (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#t~nondet19_6| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~y (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#res_10| (_ BitVec 64))) (let ((.cse1 (fp.mul c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) c_ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) c_ULTIMATE.start_fmod_double_~x)) (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~y) ((_ extract 62 52) ULTIMATE.start_fmod_double_~y) ((_ extract 51 0) ULTIMATE.start_fmod_double_~y)))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#res_10|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#res_10|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#res_10|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|)))) (or (not (fp.eq .cse0 .cse0)) (not (= .cse1 .cse2)) (not (= .cse3 .cse1)) (not (= .cse0 (fp.div c_~CRM .cse2 .cse3)))))) (exists ((|v_ULTIMATE.start_main_#t~nondet33_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet31_6| (_ BitVec 64))) (let ((.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_6|))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_6|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_6|)))) (and (= (fp.neg .cse4) .cse5) (= (_ +zero 11 53) .cse6) (= (fp.div c_~CRM .cse5 .cse6) (fp ((_ extract 63 63) c_ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) c_ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) c_ULTIMATE.start_fmod_double_~x))) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse4))))) is different from false [2020-12-02 15:34:36,458 WARN L860 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (forall ((|v_ULTIMATE.start_fmod_double_#t~nondet20_6| (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#t~nondet19_6| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~y (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#res_10| (_ BitVec 64))) (let ((.cse1 (fp.mul c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) c_ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) c_ULTIMATE.start_fmod_double_~x)) (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~y) ((_ extract 62 52) ULTIMATE.start_fmod_double_~y) ((_ extract 51 0) ULTIMATE.start_fmod_double_~y)))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#res_10|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#res_10|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#res_10|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|)))) (or (not (fp.eq .cse0 .cse0)) (not (= .cse1 .cse2)) (not (= .cse3 .cse1)) (not (= .cse0 (fp.div c_~CRM .cse2 .cse3)))))) (exists ((|v_ULTIMATE.start_main_#t~nondet33_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet31_6| (_ BitVec 64))) (let ((.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_6|))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_6|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_6|)))) (and (= (fp.neg .cse4) .cse5) (= (_ +zero 11 53) .cse6) (= (fp.div c_~CRM .cse5 .cse6) (fp ((_ extract 63 63) c_ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) c_ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) c_ULTIMATE.start_fmod_double_~x))) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse4))))) is different from true [2020-12-02 15:34:39,008 WARN L838 $PredicateComparison]: unable to prove that (and (not (let ((.cse0 (fp ((_ extract 63 63) |c_ULTIMATE.start_fmod_double_#res|) ((_ extract 62 52) |c_ULTIMATE.start_fmod_double_#res|) ((_ extract 51 0) |c_ULTIMATE.start_fmod_double_#res|)))) (fp.eq .cse0 .cse0))) (exists ((|v_ULTIMATE.start_main_#t~nondet33_6| (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#t~nondet20_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_6| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet31_6| (_ BitVec 64)) (|v_ULTIMATE.start_fmod_double_#t~nondet19_6| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~y (_ BitVec 64))) (let ((.cse5 (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) ULTIMATE.start_fmod_double_~x)))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_6|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_6|))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_6|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet20_6|))) (.cse7 (fp.mul roundNearestTiesToEven .cse5 (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~y) ((_ extract 62 52) ULTIMATE.start_fmod_double_~y) ((_ extract 51 0) ULTIMATE.start_fmod_double_~y)))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 62 52) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|) ((_ extract 51 0) |v_ULTIMATE.start_fmod_double_#t~nondet19_6|)))) (and (= (fp.neg .cse1) .cse2) (= (fp ((_ extract 63 63) |c_ULTIMATE.start_fmod_double_#res|) ((_ extract 62 52) |c_ULTIMATE.start_fmod_double_#res|) ((_ extract 51 0) |c_ULTIMATE.start_fmod_double_#res|)) (fp.div roundNearestTiesToEven .cse3 .cse4)) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse1) (= .cse5 (fp.div roundNearestTiesToEven .cse2 .cse6)) (= (_ +zero 11 53) .cse6) (= .cse7 .cse4) (= .cse7 .cse3)))))) is different from false [2020-12-02 15:34:39,298 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-02 15:34:41,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:34:41,676 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2020-12-02 15:34:41,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 15:34:41,716 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 12 [2020-12-02 15:34:41,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:34:41,718 INFO L225 Difference]: With dead ends: 57 [2020-12-02 15:34:41,718 INFO L226 Difference]: Without dead ends: 52 [2020-12-02 15:34:41,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 38.3s TimeCoverageRelationStatistics Valid=34, Invalid=68, Unknown=8, NotChecked=100, Total=210 [2020-12-02 15:34:41,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-12-02 15:34:41,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-12-02 15:34:41,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-02 15:34:41,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2020-12-02 15:34:41,728 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2020-12-02 15:34:41,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:34:41,729 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-12-02 15:34:41,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-02 15:34:41,729 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2020-12-02 15:34:41,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-02 15:34:41,730 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:34:41,730 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:34:41,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 15:34:41,932 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:34:41,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:34:41,934 INFO L82 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2020-12-02 15:34:41,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:34:41,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [245146755] [2020-12-02 15:34:41,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-02 15:34:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:34:42,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-02 15:34:42,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:34:49,242 WARN L197 SmtUtils]: Spent 2.22 s on a formula simplification that was a NOOP. DAG size: 32 [2020-12-02 15:34:59,803 WARN L197 SmtUtils]: Spent 2.19 s on a formula simplification that was a NOOP. DAG size: 35 [2020-12-02 15:35:02,004 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_#t~nondet31_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet33_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_8| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~x (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_8|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_8|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_8|)))) (and (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) (= .cse1 (_ +zero 11 53)) (= (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) ULTIMATE.start_fmod_double_~x)) (fp.div roundNearestTiesToEven .cse2 .cse1)) (= (let ((.cse3 ((_ extract 63 32) ULTIMATE.start_fmod_double_~x))) (bvxor .cse3 (bvand (_ bv2147483648 32) .cse3))) c_ULTIMATE.start_fmod_double_~hx~0) (= .cse2 (fp.neg .cse0))))) is different from false [2020-12-02 15:35:02,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:35:02,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:35:16,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:35:16,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [245146755] [2020-12-02 15:35:16,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:35:16,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-12-02 15:35:16,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254259635] [2020-12-02 15:35:16,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-02 15:35:16,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:35:16,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-02 15:35:16,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=36, Unknown=7, NotChecked=12, Total=72 [2020-12-02 15:35:16,451 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand 9 states. [2020-12-02 15:35:18,673 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet31_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet33_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_8| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_8|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_8|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_8|)))) (and (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) (= .cse1 (_ +zero 11 53)) (= (fp ((_ extract 63 63) c_ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) c_ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) c_ULTIMATE.start_fmod_double_~x)) (fp.div roundNearestTiesToEven .cse2 .cse1)) (= .cse2 (fp.neg .cse0)))))) is different from false [2020-12-02 15:35:20,831 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet31_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet33_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_8| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~x (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_8|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_8|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_8|)))) (and (= ((_ extract 63 32) ULTIMATE.start_fmod_double_~x) c_ULTIMATE.start_fmod_double_~hx~0) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) (= .cse1 (_ +zero 11 53)) (= (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) ULTIMATE.start_fmod_double_~x)) (fp.div roundNearestTiesToEven .cse2 .cse1)) (= .cse2 (fp.neg .cse0))))) (bvsge (bvxor c_ULTIMATE.start_fmod_double_~hx~0 (bvand (_ bv2147483648 32) c_ULTIMATE.start_fmod_double_~hx~0)) (_ bv2146435072 32))) is different from false [2020-12-02 15:35:22,984 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet31_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet33_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet32_8| (_ BitVec 64)) (ULTIMATE.start_fmod_double_~x (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet33_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet33_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet33_8|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet32_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet32_8|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet31_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet31_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet31_8|)))) (and (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) (= .cse1 (_ +zero 11 53)) (= (fp ((_ extract 63 63) ULTIMATE.start_fmod_double_~x) ((_ extract 62 52) ULTIMATE.start_fmod_double_~x) ((_ extract 51 0) ULTIMATE.start_fmod_double_~x)) (fp.div roundNearestTiesToEven .cse2 .cse1)) (= (let ((.cse3 ((_ extract 63 32) ULTIMATE.start_fmod_double_~x))) (bvxor .cse3 (bvand (_ bv2147483648 32) .cse3))) c_ULTIMATE.start_fmod_double_~hx~0) (= .cse2 (fp.neg .cse0))))) (bvsge c_ULTIMATE.start_fmod_double_~hx~0 (_ bv2146435072 32))) is different from false [2020-12-02 15:35:23,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:35:23,010 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2020-12-02 15:35:23,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 15:35:23,011 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2020-12-02 15:35:23,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:35:23,011 INFO L225 Difference]: With dead ends: 52 [2020-12-02 15:35:23,012 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 15:35:23,013 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 39.7s TimeCoverageRelationStatistics Valid=23, Invalid=39, Unknown=10, NotChecked=60, Total=132 [2020-12-02 15:35:23,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 15:35:23,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 15:35:23,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 15:35:23,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 15:35:23,014 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-12-02 15:35:23,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:35:23,014 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 15:35:23,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-02 15:35:23,015 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 15:35:23,015 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 15:35:23,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-02 15:35:23,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-02 15:35:30,526 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-02 15:35:30,527 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:165) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:135) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:225) 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:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 34 more [2020-12-02 15:35:30,534 INFO L168 Benchmark]: Toolchain (without parser) took 103475.33 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 19.3 MB in the beginning and 29.6 MB in the end (delta: -10.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2020-12-02 15:35:30,535 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 41.9 MB. Free memory was 22.4 MB in the beginning and 22.4 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:35:30,536 INFO L168 Benchmark]: CACSL2BoogieTranslator took 460.76 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 28.1 MB in the beginning and 33.1 MB in the end (delta: -5.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-12-02 15:35:30,538 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.82 ms. Allocated memory is still 50.3 MB. Free memory was 33.1 MB in the beginning and 30.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-02 15:35:30,540 INFO L168 Benchmark]: Boogie Preprocessor took 103.59 ms. Allocated memory is still 50.3 MB. Free memory was 30.6 MB in the beginning and 28.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:35:30,541 INFO L168 Benchmark]: RCFGBuilder took 5573.92 ms. Allocated memory is still 50.3 MB. Free memory was 28.2 MB in the beginning and 23.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2020-12-02 15:35:30,542 INFO L168 Benchmark]: TraceAbstraction took 97250.55 ms. Allocated memory is still 50.3 MB. Free memory was 22.8 MB in the beginning and 29.6 MB in the end (delta: -6.8 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2020-12-02 15:35:30,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 41.9 MB. Free memory was 22.4 MB in the beginning and 22.4 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 460.76 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 28.1 MB in the beginning and 33.1 MB in the end (delta: -5.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.82 ms. Allocated memory is still 50.3 MB. Free memory was 33.1 MB in the beginning and 30.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 103.59 ms. Allocated memory is still 50.3 MB. Free memory was 30.6 MB in the beginning and 28.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5573.92 ms. Allocated memory is still 50.3 MB. Free memory was 28.2 MB in the beginning and 23.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 97250.55 ms. Allocated memory is still 50.3 MB. Free memory was 22.8 MB in the beginning and 29.6 MB in the end (delta: -6.8 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...