./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0833.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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 ../sv-benchmarks/c/float-newlib/double_req_bl_0833.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 4ed33a95e0245dd5573a2b0fc7749564ab7e52f4 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 ../sv-benchmarks/c/float-newlib/double_req_bl_0833.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 4ed33a95e0245dd5573a2b0fc7749564ab7e52f4 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 08:13:59,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 08:13:59,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 08:13:59,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 08:13:59,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 08:13:59,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 08:13:59,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 08:13:59,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 08:13:59,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 08:13:59,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 08:13:59,482 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 08:13:59,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 08:13:59,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 08:13:59,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 08:13:59,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 08:13:59,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 08:13:59,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 08:13:59,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 08:13:59,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 08:13:59,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 08:13:59,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 08:13:59,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 08:13:59,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 08:13:59,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 08:13:59,516 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 08:13:59,517 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 08:13:59,517 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 08:13:59,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 08:13:59,519 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 08:13:59,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 08:13:59,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 08:13:59,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 08:13:59,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 08:13:59,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 08:13:59,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 08:13:59,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 08:13:59,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 08:13:59,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 08:13:59,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 08:13:59,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 08:13:59,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 08:13:59,531 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 08:13:59,574 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 08:13:59,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 08:13:59,575 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 08:13:59,575 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 08:13:59,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 08:13:59,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 08:13:59,577 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 08:13:59,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 08:13:59,578 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 08:13:59,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 08:13:59,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 08:13:59,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 08:13:59,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 08:13:59,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 08:13:59,580 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 08:13:59,580 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 08:13:59,580 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 08:13:59,580 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 08:13:59,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 08:13:59,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 08:13:59,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 08:13:59,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 08:13:59,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 08:13:59,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 08:13:59,582 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 08:13:59,582 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 08:13:59,582 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 08:13:59,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 08:13:59,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 08:13:59,582 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 08:13:59,583 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ed33a95e0245dd5573a2b0fc7749564ab7e52f4 [2021-08-29 08:14:00,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 08:14:00,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 08:14:00,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 08:14:00,106 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 08:14:00,107 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 08:14:00,108 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0833.c [2021-08-29 08:14:00,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eddb423b5/dc5f930a93f94210970f51bc96246cae/FLAG550a0619d [2021-08-29 08:14:00,954 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 08:14:00,963 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0833.c [2021-08-29 08:14:00,980 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eddb423b5/dc5f930a93f94210970f51bc96246cae/FLAG550a0619d [2021-08-29 08:14:00,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eddb423b5/dc5f930a93f94210970f51bc96246cae [2021-08-29 08:14:01,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 08:14:01,008 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 08:14:01,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 08:14:01,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 08:14:01,027 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 08:14:01,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:14:01" (1/1) ... [2021-08-29 08:14:01,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52688c19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:01, skipping insertion in model container [2021-08-29 08:14:01,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:14:01" (1/1) ... [2021-08-29 08:14:01,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 08:14:01,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 08:14:01,390 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0833.c[4075,4088] [2021-08-29 08:14:01,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 08:14:01,470 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 08:14:01,558 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0833.c[4075,4088] [2021-08-29 08:14:01,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 08:14:01,590 INFO L208 MainTranslator]: Completed translation [2021-08-29 08:14:01,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:01 WrapperNode [2021-08-29 08:14:01,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 08:14:01,608 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 08:14:01,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 08:14:01,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 08:14:01,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:01" (1/1) ... [2021-08-29 08:14:01,646 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:01" (1/1) ... [2021-08-29 08:14:01,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 08:14:01,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 08:14:01,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 08:14:01,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 08:14:01,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:01" (1/1) ... [2021-08-29 08:14:01,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:01" (1/1) ... [2021-08-29 08:14:01,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:01" (1/1) ... [2021-08-29 08:14:01,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:01" (1/1) ... [2021-08-29 08:14:01,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:01" (1/1) ... [2021-08-29 08:14:01,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:01" (1/1) ... [2021-08-29 08:14:01,736 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:01" (1/1) ... [2021-08-29 08:14:01,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 08:14:01,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 08:14:01,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 08:14:01,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 08:14:01,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:01" (1/1) ... [2021-08-29 08:14:01,757 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 08:14:01,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 08:14:01,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 08:14:01,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 08:14:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 08:14:01,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 08:14:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 08:14:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-08-29 08:14:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-08-29 08:14:01,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 08:14:01,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 08:14:01,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-29 08:14:01,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-08-29 08:14:01,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 08:14:02,167 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 08:14:02,167 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-08-29 08:14:02,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:14:02 BoogieIcfgContainer [2021-08-29 08:14:02,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 08:14:02,171 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 08:14:02,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 08:14:02,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 08:14:02,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 08:14:01" (1/3) ... [2021-08-29 08:14:02,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e143c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:14:02, skipping insertion in model container [2021-08-29 08:14:02,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:01" (2/3) ... [2021-08-29 08:14:02,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e143c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:14:02, skipping insertion in model container [2021-08-29 08:14:02,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:14:02" (3/3) ... [2021-08-29 08:14:02,176 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0833.c [2021-08-29 08:14:02,183 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 08:14:02,184 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 08:14:02,241 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 08:14:02,250 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 08:14:02,250 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 08:14:02,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:14:02,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-29 08:14:02,281 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:14:02,282 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:14:02,283 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:14:02,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:14:02,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1722268475, now seen corresponding path program 1 times [2021-08-29 08:14:02,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 08:14:02,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98766742] [2021-08-29 08:14:02,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:14:02,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 08:14:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:14:02,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:14:02,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 08:14:02,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98766742] [2021-08-29 08:14:02,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98766742] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 08:14:02,510 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:14:02,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 08:14:02,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461634536] [2021-08-29 08:14:02,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 08:14:02,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 08:14:02,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 08:14:02,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 08:14:02,546 INFO L87 Difference]: Start difference. First operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:14:02,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:14:02,748 INFO L93 Difference]: Finished difference Result 86 states and 140 transitions. [2021-08-29 08:14:02,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 08:14:02,752 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-29 08:14:02,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:14:02,777 INFO L225 Difference]: With dead ends: 86 [2021-08-29 08:14:02,777 INFO L226 Difference]: Without dead ends: 41 [2021-08-29 08:14:02,781 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 08:14:02,785 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 134.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.71ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 179.55ms IncrementalHoareTripleChecker+Time [2021-08-29 08:14:02,786 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 56 Unknown, 0 Unchecked, 0.71ms Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 179.55ms Time] [2021-08-29 08:14:02,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-08-29 08:14:02,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-08-29 08:14:02,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.325) internal successors, (53), 40 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:14:02,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2021-08-29 08:14:02,860 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 11 [2021-08-29 08:14:02,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:14:02,861 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2021-08-29 08:14:02,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:14:02,862 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2021-08-29 08:14:02,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 08:14:02,864 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:14:02,864 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:14:02,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 08:14:02,866 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:14:02,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:14:02,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1102347550, now seen corresponding path program 1 times [2021-08-29 08:14:02,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 08:14:02,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12208921] [2021-08-29 08:14:02,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:14:02,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 08:14:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 08:14:03,003 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 08:14:03,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 08:14:03,139 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 08:14:03,140 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 08:14:03,155 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 08:14:03,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 08:14:03,163 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 08:14:03,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 08:14:03 BoogieIcfgContainer [2021-08-29 08:14:03,221 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 08:14:03,223 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 08:14:03,223 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 08:14:03,224 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 08:14:03,224 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:14:02" (3/4) ... [2021-08-29 08:14:03,228 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-29 08:14:03,228 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 08:14:03,230 INFO L158 Benchmark]: Toolchain (without parser) took 2225.14ms. Allocated memory was 56.6MB in the beginning and 113.2MB in the end (delta: 56.6MB). Free memory was 35.1MB in the beginning and 58.0MB in the end (delta: -22.9MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2021-08-29 08:14:03,231 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 56.6MB. Free memory was 38.6MB in the beginning and 38.5MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:14:03,235 INFO L158 Benchmark]: CACSL2BoogieTranslator took 582.96ms. Allocated memory is still 56.6MB. Free memory was 34.8MB in the beginning and 38.0MB in the end (delta: -3.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 08:14:03,236 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.06ms. Allocated memory is still 56.6MB. Free memory was 38.0MB in the beginning and 35.8MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:14:03,237 INFO L158 Benchmark]: Boogie Preprocessor took 62.14ms. Allocated memory is still 56.6MB. Free memory was 35.8MB in the beginning and 34.1MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 08:14:03,237 INFO L158 Benchmark]: RCFGBuilder took 421.89ms. Allocated memory was 56.6MB in the beginning and 113.2MB in the end (delta: 56.6MB). Free memory was 33.9MB in the beginning and 91.6MB in the end (delta: -57.7MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2021-08-29 08:14:03,238 INFO L158 Benchmark]: TraceAbstraction took 1051.08ms. Allocated memory is still 113.2MB. Free memory was 90.8MB in the beginning and 58.7MB in the end (delta: 32.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-08-29 08:14:03,238 INFO L158 Benchmark]: Witness Printer took 4.74ms. Allocated memory is still 113.2MB. Free memory is still 58.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:14:03,247 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 56.6MB. Free memory was 38.6MB in the beginning and 38.5MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 582.96ms. Allocated memory is still 56.6MB. Free memory was 34.8MB in the beginning and 38.0MB in the end (delta: -3.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.06ms. Allocated memory is still 56.6MB. Free memory was 38.0MB in the beginning and 35.8MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 62.14ms. Allocated memory is still 56.6MB. Free memory was 35.8MB in the beginning and 34.1MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 421.89ms. Allocated memory was 56.6MB in the beginning and 113.2MB in the end (delta: 56.6MB). Free memory was 33.9MB in the beginning and 91.6MB in the end (delta: -57.7MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1051.08ms. Allocated memory is still 113.2MB. Free memory was 90.8MB in the beginning and 58.7MB in the end (delta: 32.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 4.74ms. Allocated memory is still 113.2MB. Free memory is still 58.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 155]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 23, overapproximation of someBinaryArithmeticDOUBLEoperation at line 73, overapproximation of bitwiseAnd at line 56, overapproximation of someBinaryDOUBLEComparisonOperation at line 154. Possible FailurePath: [L19-L44] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L151] double x = -1.0 / 0.0; [L47] double y, hi, lo, c, t; [L48] __int32_t k = 0, xsb; [L49] __uint32_t hx; VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L52] ieee_double_shape_type gh_u; [L53] gh_u.value = (x) [L54] EXPR gh_u.parts.msw [L54] (hx) = gh_u.parts.msw [L56] xsb = (hx >> 31) & 1 [L57] hx &= 0x7fffffff VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L59] COND TRUE hx >= 0x40862E42 VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L60] COND FALSE !(hx >= 0x7ff00000) VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L72] COND TRUE x > o_threshold_exp [L73] return huge_exp * huge_exp; VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L152] double res = __ieee754_exp(x); [L154] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L154] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L155] reach_error() VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 922.27ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 20.61ms, AutomataDifference: 270.27ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 12.40ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 179.55ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 134.90ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 56 mSolverCounterSat, 0.71ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 53.66ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 16.53ms SsaConstructionTime, 150.56ms SatisfiabilityAnalysisTime, 89.77ms InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 [2021-08-29 08:14:03,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 08:14:05,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 08:14:05,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 08:14:05,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 08:14:05,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 08:14:05,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 08:14:05,766 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 08:14:05,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 08:14:05,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 08:14:05,774 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 08:14:05,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 08:14:05,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 08:14:05,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 08:14:05,781 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 08:14:05,784 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 08:14:05,785 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 08:14:05,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 08:14:05,794 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 08:14:05,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 08:14:05,800 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 08:14:05,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 08:14:05,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 08:14:05,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 08:14:05,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 08:14:05,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 08:14:05,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 08:14:05,822 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 08:14:05,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 08:14:05,824 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 08:14:05,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 08:14:05,825 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 08:14:05,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 08:14:05,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 08:14:05,827 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 08:14:05,828 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 08:14:05,828 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 08:14:05,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 08:14:05,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 08:14:05,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 08:14:05,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 08:14:05,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 08:14:05,831 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 08:14:05,868 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 08:14:05,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 08:14:05,870 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 08:14:05,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 08:14:05,872 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 08:14:05,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 08:14:05,873 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 08:14:05,873 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 08:14:05,873 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 08:14:05,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 08:14:05,874 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 08:14:05,874 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 08:14:05,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 08:14:05,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 08:14:05,875 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 08:14:05,875 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 08:14:05,875 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 08:14:05,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 08:14:05,876 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 08:14:05,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 08:14:05,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 08:14:05,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 08:14:05,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 08:14:05,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 08:14:05,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 08:14:05,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 08:14:05,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 08:14:05,877 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 08:14:05,877 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 08:14:05,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 08:14:05,878 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 08:14:05,878 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 08:14:05,879 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ed33a95e0245dd5573a2b0fc7749564ab7e52f4 [2021-08-29 08:14:06,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 08:14:06,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 08:14:06,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 08:14:06,303 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 08:14:06,304 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 08:14:06,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0833.c [2021-08-29 08:14:06,381 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07080854f/62f42e82b51442a1b0ed48b76bd2ea77/FLAG51ff71e2c [2021-08-29 08:14:06,901 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 08:14:06,902 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0833.c [2021-08-29 08:14:06,932 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07080854f/62f42e82b51442a1b0ed48b76bd2ea77/FLAG51ff71e2c [2021-08-29 08:14:07,279 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07080854f/62f42e82b51442a1b0ed48b76bd2ea77 [2021-08-29 08:14:07,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 08:14:07,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 08:14:07,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 08:14:07,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 08:14:07,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 08:14:07,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:14:07" (1/1) ... [2021-08-29 08:14:07,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4efdacba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:07, skipping insertion in model container [2021-08-29 08:14:07,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:14:07" (1/1) ... [2021-08-29 08:14:07,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 08:14:07,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 08:14:07,589 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0833.c[4075,4088] [2021-08-29 08:14:07,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 08:14:07,644 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 08:14:07,700 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0833.c[4075,4088] [2021-08-29 08:14:07,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 08:14:07,730 INFO L208 MainTranslator]: Completed translation [2021-08-29 08:14:07,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:07 WrapperNode [2021-08-29 08:14:07,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 08:14:07,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 08:14:07,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 08:14:07,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 08:14:07,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:07" (1/1) ... [2021-08-29 08:14:07,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:07" (1/1) ... [2021-08-29 08:14:07,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 08:14:07,800 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 08:14:07,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 08:14:07,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 08:14:07,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:07" (1/1) ... [2021-08-29 08:14:07,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:07" (1/1) ... [2021-08-29 08:14:07,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:07" (1/1) ... [2021-08-29 08:14:07,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:07" (1/1) ... [2021-08-29 08:14:07,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:07" (1/1) ... [2021-08-29 08:14:07,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:07" (1/1) ... [2021-08-29 08:14:07,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:07" (1/1) ... [2021-08-29 08:14:07,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 08:14:07,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 08:14:07,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 08:14:07,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 08:14:07,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:07" (1/1) ... [2021-08-29 08:14:07,883 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 08:14:07,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 08:14:07,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 08:14:07,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 08:14:07,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-08-29 08:14:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-08-29 08:14:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 08:14:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 08:14:07,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-08-29 08:14:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-29 08:14:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 08:14:07,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 08:14:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-29 08:14:07,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 08:14:08,406 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 08:14:08,407 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-08-29 08:14:08,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:14:08 BoogieIcfgContainer [2021-08-29 08:14:08,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 08:14:08,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 08:14:08,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 08:14:08,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 08:14:08,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 08:14:07" (1/3) ... [2021-08-29 08:14:08,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf946be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:14:08, skipping insertion in model container [2021-08-29 08:14:08,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:14:07" (2/3) ... [2021-08-29 08:14:08,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf946be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:14:08, skipping insertion in model container [2021-08-29 08:14:08,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:14:08" (3/3) ... [2021-08-29 08:14:08,418 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0833.c [2021-08-29 08:14:08,422 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 08:14:08,422 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 08:14:08,472 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 08:14:08,480 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 08:14:08,480 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 08:14:08,498 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:14:08,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-29 08:14:08,504 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:14:08,505 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:14:08,506 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:14:08,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:14:08,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1722268475, now seen corresponding path program 1 times [2021-08-29 08:14:08,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:14:08,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554858643] [2021-08-29 08:14:08,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:14:08,525 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:14:08,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:14:08,530 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:14:08,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-29 08:14:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:14:08,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-29 08:14:08,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:14:09,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:14:09,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:14:09,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:14:09,111 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:14:09,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554858643] [2021-08-29 08:14:09,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554858643] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:14:09,112 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:14:09,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-29 08:14:09,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036640440] [2021-08-29 08:14:09,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 08:14:09,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:14:09,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 08:14:09,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 08:14:09,182 INFO L87 Difference]: Start difference. First operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:14:10,759 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 08:14:13,589 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-08-29 08:14:15,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 08:14:18,541 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 08:14:24,020 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 08:14:28,242 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 08:14:31,441 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 08:14:31,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:14:31,502 INFO L93 Difference]: Finished difference Result 86 states and 140 transitions. [2021-08-29 08:14:31,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 08:14:31,505 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-29 08:14:31,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:14:31,512 INFO L225 Difference]: With dead ends: 86 [2021-08-29 08:14:31,512 INFO L226 Difference]: Without dead ends: 41 [2021-08-29 08:14:31,531 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.17ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 08:14:31,548 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20462.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.12ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22286.90ms IncrementalHoareTripleChecker+Time [2021-08-29 08:14:31,550 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 56 Unknown, 0 Unchecked, 1.12ms Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 5 Unknown, 0 Unchecked, 22286.90ms Time] [2021-08-29 08:14:31,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-08-29 08:14:31,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-08-29 08:14:31,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.325) internal successors, (53), 40 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:14:31,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2021-08-29 08:14:31,602 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 11 [2021-08-29 08:14:31,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:14:31,602 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2021-08-29 08:14:31,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:14:31,603 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2021-08-29 08:14:31,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 08:14:31,605 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:14:31,605 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:14:31,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-29 08:14:31,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:14:31,825 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:14:31,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:14:31,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1102347550, now seen corresponding path program 1 times [2021-08-29 08:14:31,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:14:31,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537857159] [2021-08-29 08:14:31,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:14:31,828 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:14:31,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:14:31,838 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:14:31,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-29 08:14:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:14:32,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-29 08:14:32,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:14:33,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:14:33,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:14:34,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:14:34,883 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:14:34,883 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537857159] [2021-08-29 08:14:34,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537857159] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:14:34,883 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:14:34,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-29 08:14:34,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958868463] [2021-08-29 08:14:34,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 08:14:34,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:14:34,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 08:14:34,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:14:34,886 INFO L87 Difference]: Start difference. First operand 41 states and 53 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:14:37,587 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-08-29 08:14:40,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 08:14:46,540 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.64s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 08:14:50,753 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 08:14:53,892 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-08-29 08:14:54,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:14:54,026 INFO L93 Difference]: Finished difference Result 68 states and 86 transitions. [2021-08-29 08:14:54,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 08:14:54,027 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-29 08:14:54,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:14:54,028 INFO L225 Difference]: With dead ends: 68 [2021-08-29 08:14:54,028 INFO L226 Difference]: Without dead ends: 39 [2021-08-29 08:14:54,029 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1236.55ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:14:54,030 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17300.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.03ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 116 IncrementalHoareTripleChecker+Unchecked, 19117.19ms IncrementalHoareTripleChecker+Time [2021-08-29 08:14:54,030 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 158 Unknown, 0 Unchecked, 2.03ms Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 5 Unknown, 116 Unchecked, 19117.19ms Time] [2021-08-29 08:14:54,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-08-29 08:14:54,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-08-29 08:14:54,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.263157894736842) internal successors, (48), 38 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:14:54,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2021-08-29 08:14:54,037 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 12 [2021-08-29 08:14:54,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:14:54,037 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2021-08-29 08:14:54,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:14:54,038 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2021-08-29 08:14:54,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-29 08:14:54,038 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:14:54,039 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:14:54,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-08-29 08:14:54,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:14:54,244 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:14:54,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:14:54,244 INFO L82 PathProgramCache]: Analyzing trace with hash -5323571, now seen corresponding path program 1 times [2021-08-29 08:14:54,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:14:54,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1112312556] [2021-08-29 08:14:54,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:14:54,245 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:14:54,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:14:54,247 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:14:54,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-29 08:14:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:14:54,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-29 08:14:54,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:14:55,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:14:55,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:14:56,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:14:56,841 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:14:56,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1112312556] [2021-08-29 08:14:56,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1112312556] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:14:56,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:14:56,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-29 08:14:56,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767666447] [2021-08-29 08:14:56,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 08:14:56,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:14:56,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 08:14:56,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:14:56,842 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:14:58,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:14:58,146 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2021-08-29 08:14:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 08:14:58,147 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-08-29 08:14:58,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:14:58,147 INFO L225 Difference]: With dead ends: 48 [2021-08-29 08:14:58,147 INFO L226 Difference]: Without dead ends: 21 [2021-08-29 08:14:58,148 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1214.78ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:14:58,149 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1264.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.92ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 1295.53ms IncrementalHoareTripleChecker+Time [2021-08-29 08:14:58,149 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 79 Unknown, 0 Unchecked, 0.92ms Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 60 Unchecked, 1295.53ms Time] [2021-08-29 08:14:58,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-08-29 08:14:58,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-08-29 08:14:58,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:14:58,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2021-08-29 08:14:58,151 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 13 [2021-08-29 08:14:58,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:14:58,152 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2021-08-29 08:14:58,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:14:58,152 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2021-08-29 08:14:58,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-29 08:14:58,156 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:14:58,156 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:14:58,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-29 08:14:58,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:14:58,373 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:14:58,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:14:58,374 INFO L82 PathProgramCache]: Analyzing trace with hash -691534902, now seen corresponding path program 1 times [2021-08-29 08:14:58,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:14:58,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059259977] [2021-08-29 08:14:58,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:14:58,374 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:14:58,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:14:58,379 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:14:58,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-29 08:14:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:14:58,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-29 08:14:58,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:14:59,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-08-29 08:15:03,354 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-29 08:15:03,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 71 treesize of output 71 [2021-08-29 08:15:03,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-08-29 08:15:05,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:15:05,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:15:07,189 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-29 08:15:07,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 59 [2021-08-29 08:15:07,380 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-29 08:15:07,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 61 [2021-08-29 08:15:07,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-08-29 08:15:08,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:15:08,591 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:15:08,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059259977] [2021-08-29 08:15:08,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059259977] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:15:08,592 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:15:08,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2021-08-29 08:15:08,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535693126] [2021-08-29 08:15:08,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-29 08:15:08,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:15:08,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-29 08:15:08,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-08-29 08:15:08,593 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:15:09,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:15:09,437 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2021-08-29 08:15:09,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-29 08:15:09,438 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-08-29 08:15:09,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:15:09,438 INFO L225 Difference]: With dead ends: 30 [2021-08-29 08:15:09,438 INFO L226 Difference]: Without dead ends: 21 [2021-08-29 08:15:09,438 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2039.97ms TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-08-29 08:15:09,439 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 816.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.99ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 836.61ms IncrementalHoareTripleChecker+Time [2021-08-29 08:15:09,439 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 90 Unknown, 0 Unchecked, 0.99ms Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 62 Unchecked, 836.61ms Time] [2021-08-29 08:15:09,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-08-29 08:15:09,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-08-29 08:15:09,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.1) internal successors, (22), 20 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:15:09,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-08-29 08:15:09,450 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 14 [2021-08-29 08:15:09,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:15:09,451 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-08-29 08:15:09,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:15:09,451 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-08-29 08:15:09,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-29 08:15:09,453 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:15:09,453 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:15:09,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-29 08:15:09,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:15:09,654 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:15:09,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:15:09,655 INFO L82 PathProgramCache]: Analyzing trace with hash -129518544, now seen corresponding path program 1 times [2021-08-29 08:15:09,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:15:09,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1777419522] [2021-08-29 08:15:09,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:15:09,656 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:15:09,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:15:09,659 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:15:09,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-29 08:15:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:15:09,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-29 08:15:09,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:15:11,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:15:11,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:15:13,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:15:13,610 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:15:13,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1777419522] [2021-08-29 08:15:13,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1777419522] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:15:13,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:15:13,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-29 08:15:13,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126311741] [2021-08-29 08:15:13,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 08:15:13,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:15:13,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 08:15:13,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:15:13,612 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:15:14,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:15:14,055 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2021-08-29 08:15:14,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 08:15:14,056 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-08-29 08:15:14,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:15:14,057 INFO L225 Difference]: With dead ends: 31 [2021-08-29 08:15:14,057 INFO L226 Difference]: Without dead ends: 21 [2021-08-29 08:15:14,057 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1453.99ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:15:14,058 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 415.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.80ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 437.44ms IncrementalHoareTripleChecker+Time [2021-08-29 08:15:14,058 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 56 Unknown, 0 Unchecked, 0.80ms Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 44 Unchecked, 437.44ms Time] [2021-08-29 08:15:14,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-08-29 08:15:14,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-08-29 08:15:14,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:15:14,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-08-29 08:15:14,061 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 16 [2021-08-29 08:15:14,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:15:14,061 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-08-29 08:15:14,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:15:14,061 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-08-29 08:15:14,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-29 08:15:14,061 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:15:14,062 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:15:14,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-29 08:15:14,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:15:14,289 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:15:14,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:15:14,289 INFO L82 PathProgramCache]: Analyzing trace with hash -72260242, now seen corresponding path program 1 times [2021-08-29 08:15:14,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:15:14,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130838181] [2021-08-29 08:15:14,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:15:14,290 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:15:14,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:15:14,293 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:15:14,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-29 08:15:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:15:14,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-29 08:15:14,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:15:15,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:15:15,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:15:15,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:15:15,984 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:15:15,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130838181] [2021-08-29 08:15:15,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130838181] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:15:15,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:15:15,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-08-29 08:15:15,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614038734] [2021-08-29 08:15:15,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-29 08:15:15,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:15:15,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-29 08:15:15,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-08-29 08:15:15,985 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:15:17,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:15:17,654 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2021-08-29 08:15:17,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 08:15:17,654 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-08-29 08:15:17,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:15:17,655 INFO L225 Difference]: With dead ends: 24 [2021-08-29 08:15:17,655 INFO L226 Difference]: Without dead ends: 21 [2021-08-29 08:15:17,655 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1062.56ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:15:17,656 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 20 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1400.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.98ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1450.80ms IncrementalHoareTripleChecker+Time [2021-08-29 08:15:17,656 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 0 Invalid, 65 Unknown, 0 Unchecked, 1.98ms Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 1450.80ms Time] [2021-08-29 08:15:17,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-08-29 08:15:17,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-08-29 08:15:17,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.0) internal successors, (20), 20 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:15:17,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2021-08-29 08:15:17,659 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 16 [2021-08-29 08:15:17,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:15:17,659 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2021-08-29 08:15:17,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:15:17,659 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2021-08-29 08:15:17,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-29 08:15:17,659 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:15:17,659 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:15:17,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-29 08:15:17,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:15:17,873 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:15:17,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:15:17,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1346464765, now seen corresponding path program 1 times [2021-08-29 08:15:17,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:15:17,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361908738] [2021-08-29 08:15:17,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:15:17,874 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:15:17,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:15:17,876 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:15:17,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-29 08:15:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:15:18,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-29 08:15:18,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:15:20,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:15:20,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:15:24,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:15:24,312 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:15:24,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361908738] [2021-08-29 08:15:24,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361908738] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:15:24,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:15:24,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2021-08-29 08:15:24,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509892669] [2021-08-29 08:15:24,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-29 08:15:24,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:15:24,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-29 08:15:24,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-08-29 08:15:24,314 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:15:28,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:15:28,041 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2021-08-29 08:15:28,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-29 08:15:28,041 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-08-29 08:15:28,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:15:28,041 INFO L225 Difference]: With dead ends: 21 [2021-08-29 08:15:28,041 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 08:15:28,042 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 5710.55ms TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2021-08-29 08:15:28,042 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2157.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.98ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 71 IncrementalHoareTripleChecker+Unchecked, 2212.58ms IncrementalHoareTripleChecker+Time [2021-08-29 08:15:28,043 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 169 Unknown, 0 Unchecked, 1.98ms Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 71 Unchecked, 2212.58ms Time] [2021-08-29 08:15:28,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 08:15:28,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 08:15:28,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:15:28,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 08:15:28,044 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2021-08-29 08:15:28,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:15:28,044 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 08:15:28,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 14 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:15:28,044 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 08:15:28,044 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 08:15:28,046 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 08:15:28,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-29 08:15:28,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:15:28,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 08:15:28,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:15:28,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:15:28,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:15:28,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:15:28,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:15:28,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:15:28,325 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:15:28,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:15:29,032 INFO L861 garLoopResultBuilder]: At program point L159(lines 145 160) the Hoare annotation is: true [2021-08-29 08:15:29,033 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 71) no Hoare annotation was computed. [2021-08-29 08:15:29,033 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 118 122) no Hoare annotation was computed. [2021-08-29 08:15:29,033 INFO L854 garLoopResultBuilder]: At program point L118-2(lines 118 122) the Hoare annotation is: false [2021-08-29 08:15:29,033 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 130) no Hoare annotation was computed. [2021-08-29 08:15:29,033 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 08:15:29,033 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 08:15:29,033 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2021-08-29 08:15:29,033 INFO L858 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-08-29 08:15:29,033 INFO L854 garLoopResultBuilder]: At program point L136-2(lines 136 140) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short22| (= (_ +zero 11 53) ULTIMATE.start___signbit_double_~x) (= (_ +zero 11 53) ULTIMATE.start_main_~res~0) (= (_ +zero 11 53) |ULTIMATE.start___ieee754_exp_#res|)) [2021-08-29 08:15:29,033 INFO L858 garLoopResultBuilder]: For program point L136-3(lines 136 140) no Hoare annotation was computed. [2021-08-29 08:15:29,033 INFO L858 garLoopResultBuilder]: For program point L70-2(line 70) no Hoare annotation was computed. [2021-08-29 08:15:29,033 INFO L858 garLoopResultBuilder]: For program point L62-1(lines 62 66) no Hoare annotation was computed. [2021-08-29 08:15:29,034 INFO L854 garLoopResultBuilder]: At program point L62-2(lines 62 66) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start___ieee754_exp_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)))) (exists ((|v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_19| (_ BitVec 64))) (let ((.cse1 (select |#memory_int| |v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11|))) (let ((.cse0 (select .cse1 (_ bv4 32)))) (and (= (bvand (_ bv2147483647 32) .cse0) ULTIMATE.start___ieee754_exp_~hx~0) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_19|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_19|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_19|)) ULTIMATE.start___ieee754_exp_~x) (= ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_19|) (select .cse1 (_ bv0 32))) (= .cse0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_19|)))))) (exists ((|v_skolemized_q#valueAsBitvector_21| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= ULTIMATE.start___ieee754_exp_~xsb~0 (bvand (_ bv1 32) (bvlshr ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_21|) (_ bv31 32)))) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_21|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_21|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_21|)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)))))) [2021-08-29 08:15:29,034 INFO L858 garLoopResultBuilder]: For program point L62-3(lines 60 71) no Hoare annotation was computed. [2021-08-29 08:15:29,034 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 88) no Hoare annotation was computed. [2021-08-29 08:15:29,034 INFO L858 garLoopResultBuilder]: For program point L79-2(lines 79 88) no Hoare annotation was computed. [2021-08-29 08:15:29,034 INFO L858 garLoopResultBuilder]: For program point L104-1(lines 104 108) no Hoare annotation was computed. [2021-08-29 08:15:29,034 INFO L854 garLoopResultBuilder]: At program point L104-2(lines 104 108) the Hoare annotation is: false [2021-08-29 08:15:29,034 INFO L854 garLoopResultBuilder]: At program point L129(lines 46 131) the Hoare annotation is: (= (_ +zero 11 53) |ULTIMATE.start___ieee754_exp_#res|) [2021-08-29 08:15:29,034 INFO L858 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-08-29 08:15:29,034 INFO L858 garLoopResultBuilder]: For program point L154-2(lines 154 157) no Hoare annotation was computed. [2021-08-29 08:15:29,034 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2021-08-29 08:15:29,034 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-08-29 08:15:29,034 INFO L858 garLoopResultBuilder]: For program point L98(lines 98 101) no Hoare annotation was computed. [2021-08-29 08:15:29,034 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 08:15:29,034 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 128) no Hoare annotation was computed. [2021-08-29 08:15:29,034 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 93) no Hoare annotation was computed. [2021-08-29 08:15:29,034 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 116 130) no Hoare annotation was computed. [2021-08-29 08:15:29,034 INFO L858 garLoopResultBuilder]: For program point L123-2(lines 123 128) no Hoare annotation was computed. [2021-08-29 08:15:29,035 INFO L858 garLoopResultBuilder]: For program point L90-2(lines 78 93) no Hoare annotation was computed. [2021-08-29 08:15:29,035 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2021-08-29 08:15:29,035 INFO L858 garLoopResultBuilder]: For program point L74(lines 74 75) no Hoare annotation was computed. [2021-08-29 08:15:29,035 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 08:15:29,035 INFO L858 garLoopResultBuilder]: For program point L91(lines 91 92) no Hoare annotation was computed. [2021-08-29 08:15:29,035 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 76) no Hoare annotation was computed. [2021-08-29 08:15:29,035 INFO L858 garLoopResultBuilder]: For program point L59-2(lines 46 131) no Hoare annotation was computed. [2021-08-29 08:15:29,035 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2021-08-29 08:15:29,035 INFO L854 garLoopResultBuilder]: At program point L51-2(lines 51 55) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start___ieee754_exp_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)))) [2021-08-29 08:15:29,035 INFO L858 garLoopResultBuilder]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2021-08-29 08:15:29,035 INFO L854 garLoopResultBuilder]: At program point L142(lines 133 143) the Hoare annotation is: (and (= |ULTIMATE.start___signbit_double_#res| (_ bv0 32)) |ULTIMATE.start_main_#t~short22| (= (_ +zero 11 53) |ULTIMATE.start___ieee754_exp_#res|)) [2021-08-29 08:15:29,035 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2021-08-29 08:15:29,035 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 102 116) no Hoare annotation was computed. [2021-08-29 08:15:29,035 INFO L858 garLoopResultBuilder]: For program point L109-2(lines 109 114) no Hoare annotation was computed. [2021-08-29 08:15:29,040 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 08:15:29,045 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,045 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,051 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,052 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,055 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,068 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,069 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11,QUANTIFIED] [2021-08-29 08:15:29,069 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-08-29 08:15:29,069 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-08-29 08:15:29,069 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-08-29 08:15:29,070 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-08-29 08:15:29,070 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11,QUANTIFIED] [2021-08-29 08:15:29,070 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11,QUANTIFIED] [2021-08-29 08:15:29,070 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-08-29 08:15:29,070 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-08-29 08:15:29,070 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-08-29 08:15:29,070 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-08-29 08:15:29,071 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-08-29 08:15:29,071 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,071 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,072 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,072 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,072 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11,QUANTIFIED] [2021-08-29 08:15:29,072 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-08-29 08:15:29,072 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-08-29 08:15:29,072 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-08-29 08:15:29,073 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-08-29 08:15:29,073 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11,QUANTIFIED] [2021-08-29 08:15:29,073 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11,QUANTIFIED] [2021-08-29 08:15:29,073 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-08-29 08:15:29,073 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-08-29 08:15:29,073 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-08-29 08:15:29,073 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-08-29 08:15:29,073 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-08-29 08:15:29,074 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,074 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 08:15:29 BoogieIcfgContainer [2021-08-29 08:15:29,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 08:15:29,076 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 08:15:29,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 08:15:29,077 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 08:15:29,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:14:08" (3/4) ... [2021-08-29 08:15:29,091 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 08:15:29,117 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-08-29 08:15:29,117 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-08-29 08:15:29,118 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 08:15:29,118 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 08:15:29,142 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) [2021-08-29 08:15:29,142 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && (\exists v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11 : bv32, v_skolemized_q#valueAsBitvector_19 : bv64 :: ((~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11][4bv32]) == hx && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_19[63:63], v_skolemized_q#valueAsBitvector_19[62:52], v_skolemized_q#valueAsBitvector_19[51:0]) == x) && v_skolemized_q#valueAsBitvector_19[31:0] == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11][0bv32]) && unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11][4bv32] == v_skolemized_q#valueAsBitvector_19[63:32])) && (\exists v_skolemized_q#valueAsBitvector_21 : bv64, currentRoundingMode : FloatRoundingMode :: xsb == ~bvand32(1bv32, ~bvlshr32(v_skolemized_q#valueAsBitvector_21[63:32], 31bv32)) && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_21[63:63], v_skolemized_q#valueAsBitvector_21[62:52], v_skolemized_q#valueAsBitvector_21[51:0]) == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) [2021-08-29 08:15:29,142 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ~Pluszero~LONGDOUBLE() == \result [2021-08-29 08:15:29,143 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((aux-res == 0.0 && __signbit_double(res) == 0-aux && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == \result [2021-08-29 08:15:29,144 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == 0bv32 && aux-res == 0.0 && __signbit_double(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == \result [2021-08-29 08:15:29,194 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 08:15:29,195 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 08:15:29,196 INFO L158 Benchmark]: Toolchain (without parser) took 81900.31ms. Allocated memory was 50.3MB in the beginning and 71.3MB in the end (delta: 21.0MB). Free memory was 25.6MB in the beginning and 28.3MB in the end (delta: -2.7MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2021-08-29 08:15:29,196 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 50.3MB. Free memory was 31.5MB in the beginning and 31.5MB in the end (delta: 30.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:15:29,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.34ms. Allocated memory was 50.3MB in the beginning and 71.3MB in the end (delta: 21.0MB). Free memory was 25.3MB in the beginning and 51.6MB in the end (delta: -26.2MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2021-08-29 08:15:29,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.24ms. Allocated memory is still 71.3MB. Free memory was 51.6MB in the beginning and 49.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 08:15:29,197 INFO L158 Benchmark]: Boogie Preprocessor took 71.53ms. Allocated memory is still 71.3MB. Free memory was 49.2MB in the beginning and 47.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 08:15:29,197 INFO L158 Benchmark]: RCFGBuilder took 537.47ms. Allocated memory is still 71.3MB. Free memory was 47.1MB in the beginning and 51.3MB in the end (delta: -4.2MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2021-08-29 08:15:29,198 INFO L158 Benchmark]: TraceAbstraction took 80663.97ms. Allocated memory is still 71.3MB. Free memory was 51.0MB in the beginning and 37.2MB in the end (delta: 13.8MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2021-08-29 08:15:29,198 INFO L158 Benchmark]: Witness Printer took 118.52ms. Allocated memory is still 71.3MB. Free memory was 36.7MB in the beginning and 28.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 08:15:29,200 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 50.3MB. Free memory was 31.5MB in the beginning and 31.5MB in the end (delta: 30.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 434.34ms. Allocated memory was 50.3MB in the beginning and 71.3MB in the end (delta: 21.0MB). Free memory was 25.3MB in the beginning and 51.6MB in the end (delta: -26.2MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.24ms. Allocated memory is still 71.3MB. Free memory was 51.6MB in the beginning and 49.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.53ms. Allocated memory is still 71.3MB. Free memory was 49.2MB in the beginning and 47.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 537.47ms. Allocated memory is still 71.3MB. Free memory was 47.1MB in the beginning and 51.3MB in the end (delta: -4.2MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * TraceAbstraction took 80663.97ms. Allocated memory is still 71.3MB. Free memory was 51.0MB in the beginning and 37.2MB in the end (delta: 13.8MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Witness Printer took 118.52ms. Allocated memory is still 71.3MB. Free memory was 36.7MB in the beginning and 28.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 155]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 80569.75ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 15.10ms, AutomataDifference: 49582.88ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 773.38ms, InitialAbstractionConstructionTime: 13.70ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 47637.05ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 43817.48ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 353 IncrementalHoareTripleChecker+Unchecked, 375 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 309 IncrementalHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 0 mSDtfsCounter, 309 mSolverCounterSat, 9.83ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 195 GetRequests, 147 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 12718.57ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 63.09ms AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 14 NumberOfFragments, 107 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 65.58ms HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 700.31ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 195.44ms SsaConstructionTime, 1685.10ms SatisfiabilityAnalysisTime, 26319.58ms InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 190 ConstructedInterpolants, 41 QuantifiedInterpolants, 1288 SizeOfPredicates, 40 NumberOfNonLiveVariables, 658 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 51]: Loop Invariant [2021-08-29 08:15:29,222 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,222 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,223 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,223 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ~Pluszero~LONGDOUBLE() == \result - InvariantResult [Line: 62]: Loop Invariant [2021-08-29 08:15:29,226 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,226 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,226 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11,QUANTIFIED] [2021-08-29 08:15:29,226 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-08-29 08:15:29,226 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-08-29 08:15:29,227 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-08-29 08:15:29,227 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-08-29 08:15:29,228 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11,QUANTIFIED] [2021-08-29 08:15:29,228 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11,QUANTIFIED] [2021-08-29 08:15:29,228 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-08-29 08:15:29,228 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-08-29 08:15:29,229 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-08-29 08:15:29,229 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-08-29 08:15:29,229 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-08-29 08:15:29,229 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,229 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,237 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,238 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,238 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11,QUANTIFIED] [2021-08-29 08:15:29,238 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-08-29 08:15:29,238 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-08-29 08:15:29,238 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-08-29 08:15:29,238 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-08-29 08:15:29,238 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11,QUANTIFIED] [2021-08-29 08:15:29,239 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11,QUANTIFIED] [2021-08-29 08:15:29,239 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_19,QUANTIFIED] [2021-08-29 08:15:29,239 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-08-29 08:15:29,239 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-08-29 08:15:29,239 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-08-29 08:15:29,239 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_21,QUANTIFIED] [2021-08-29 08:15:29,239 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-29 08:15:29,239 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && (\exists v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11 : bv32, v_skolemized_q#valueAsBitvector_19 : bv64 :: ((~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11][4bv32]) == hx && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_19[63:63], v_skolemized_q#valueAsBitvector_19[62:52], v_skolemized_q#valueAsBitvector_19[51:0]) == x) && v_skolemized_q#valueAsBitvector_19[31:0] == unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11][0bv32]) && unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_exp_~#gh_u~0.base_11][4bv32] == v_skolemized_q#valueAsBitvector_19[63:32])) && (\exists v_skolemized_q#valueAsBitvector_21 : bv64, currentRoundingMode : FloatRoundingMode :: xsb == ~bvand32(1bv32, ~bvlshr32(v_skolemized_q#valueAsBitvector_21[63:32], 31bv32)) && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_21[63:63], v_skolemized_q#valueAsBitvector_21[62:52], v_skolemized_q#valueAsBitvector_21[51:0]) == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: ((aux-res == 0.0 && __signbit_double(res) == 0-aux && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == \result - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 145]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: (\result == 0bv32 && aux-res == 0.0 && __signbit_double(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == \result RESULT: Ultimate proved your program to be correct! [2021-08-29 08:15:29,452 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-08-29 08:15:29,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...