./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc 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_1232a.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 2f0e84dafea36c954c87753335c0002922188c68 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_1232a.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 2f0e84dafea36c954c87753335c0002922188c68 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 23:17:09,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:17:09,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:17:09,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:17:09,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:17:09,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:17:09,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:17:09,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:17:09,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:17:09,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:17:09,553 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:17:09,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:17:09,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:17:09,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:17:09,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:17:09,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:17:09,560 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:17:09,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:17:09,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:17:09,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:17:09,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:17:09,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:17:09,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:17:09,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:17:09,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:17:09,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:17:09,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:17:09,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:17:09,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:17:09,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:17:09,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:17:09,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:17:09,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:17:09,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:17:09,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:17:09,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:17:09,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:17:09,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:17:09,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:17:09,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:17:09,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:17:09,590 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:17:09,634 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:17:09,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:17:09,636 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:17:09,636 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:17:09,637 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:17:09,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:17:09,637 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:17:09,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:17:09,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:17:09,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:17:09,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:17:09,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:17:09,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:17:09,639 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:17:09,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:17:09,639 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:17:09,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:17:09,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:17:09,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:17:09,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:17:09,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:17:09,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:17:09,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:17:09,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:17:09,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:17:09,642 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:17:09,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:17:09,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:17:09,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:17:09,643 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f0e84dafea36c954c87753335c0002922188c68 [2020-10-24 23:17:10,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:17:10,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:17:10,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:17:10,095 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:17:10,097 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:17:10,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2020-10-24 23:17:10,203 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78facd3d2/95718196a8c44f63a279584265f1e929/FLAGe3dca2c25 [2020-10-24 23:17:10,813 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:17:10,814 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2020-10-24 23:17:10,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78facd3d2/95718196a8c44f63a279584265f1e929/FLAGe3dca2c25 [2020-10-24 23:17:10,842 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78facd3d2/95718196a8c44f63a279584265f1e929 [2020-10-24 23:17:10,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:17:10,852 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:17:10,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:17:10,875 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:17:10,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:17:10,887 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:17:10" (1/1) ... [2020-10-24 23:17:10,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b3f7781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:10, skipping insertion in model container [2020-10-24 23:17:10,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:17:10" (1/1) ... [2020-10-24 23:17:10,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:17:10,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:17:11,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:17:11,263 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:17:11,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:17:11,368 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:17:11,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:11 WrapperNode [2020-10-24 23:17:11,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:17:11,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:17:11,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:17:11,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:17:11,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:11" (1/1) ... [2020-10-24 23:17:11,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:11" (1/1) ... [2020-10-24 23:17:11,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:17:11,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:17:11,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:17:11,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:17:11,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:11" (1/1) ... [2020-10-24 23:17:11,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:11" (1/1) ... [2020-10-24 23:17:11,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:11" (1/1) ... [2020-10-24 23:17:11,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:11" (1/1) ... [2020-10-24 23:17:11,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:11" (1/1) ... [2020-10-24 23:17:11,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:11" (1/1) ... [2020-10-24 23:17:11,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:11" (1/1) ... [2020-10-24 23:17:11,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:17:11,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:17:11,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:17:11,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:17:11,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:17:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:17:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:17:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:17:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:17:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:17:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:17:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:17:12,281 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:17:12,282 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-24 23:17:12,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:17:12 BoogieIcfgContainer [2020-10-24 23:17:12,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:17:12,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:17:12,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:17:12,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:17:12,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:17:10" (1/3) ... [2020-10-24 23:17:12,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261ac056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:17:12, skipping insertion in model container [2020-10-24 23:17:12,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:11" (2/3) ... [2020-10-24 23:17:12,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@261ac056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:17:12, skipping insertion in model container [2020-10-24 23:17:12,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:17:12" (3/3) ... [2020-10-24 23:17:12,297 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232a.c [2020-10-24 23:17:12,310 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:17:12,316 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:17:12,329 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:17:12,374 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:17:12,374 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:17:12,374 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:17:12,375 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:17:12,375 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:17:12,375 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:17:12,375 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:17:12,375 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:17:12,396 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-24 23:17:12,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:17:12,403 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:17:12,404 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:17:12,404 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:17:12,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:17:12,412 INFO L82 PathProgramCache]: Analyzing trace with hash -958075201, now seen corresponding path program 1 times [2020-10-24 23:17:12,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:17:12,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310989656] [2020-10-24 23:17:12,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:17:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:17:12,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:12,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310989656] [2020-10-24 23:17:12,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:17:12,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:17:12,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235662534] [2020-10-24 23:17:12,617 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:17:12,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:17:12,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:17:12,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:17:12,638 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-10-24 23:17:12,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:17:12,664 INFO L93 Difference]: Finished difference Result 63 states and 99 transitions. [2020-10-24 23:17:12,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:17:12,665 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 23:17:12,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:17:12,680 INFO L225 Difference]: With dead ends: 63 [2020-10-24 23:17:12,681 INFO L226 Difference]: Without dead ends: 29 [2020-10-24 23:17:12,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:17:12,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-24 23:17:12,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-24 23:17:12,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-24 23:17:12,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2020-10-24 23:17:12,730 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 10 [2020-10-24 23:17:12,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:17:12,731 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2020-10-24 23:17:12,731 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:17:12,732 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2020-10-24 23:17:12,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:17:12,733 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:17:12,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:17:12,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:17:12,735 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:17:12,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:17:12,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1001584898, now seen corresponding path program 1 times [2020-10-24 23:17:12,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:17:12,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309597430] [2020-10-24 23:17:12,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:17:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:17:12,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:12,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309597430] [2020-10-24 23:17:12,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:17:12,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 23:17:12,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773471346] [2020-10-24 23:17:12,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 23:17:12,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:17:12,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 23:17:12,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 23:17:12,865 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 4 states. [2020-10-24 23:17:12,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:17:12,960 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2020-10-24 23:17:12,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 23:17:12,961 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-24 23:17:12,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:17:12,962 INFO L225 Difference]: With dead ends: 53 [2020-10-24 23:17:12,962 INFO L226 Difference]: Without dead ends: 44 [2020-10-24 23:17:12,963 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 23:17:12,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-24 23:17:12,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 31. [2020-10-24 23:17:12,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-24 23:17:12,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-10-24 23:17:12,970 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11 [2020-10-24 23:17:12,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:17:12,971 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-10-24 23:17:12,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 23:17:12,971 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-10-24 23:17:12,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-24 23:17:12,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:17:12,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:17:12,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:17:12,973 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:17:12,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:17:12,973 INFO L82 PathProgramCache]: Analyzing trace with hash 502201410, now seen corresponding path program 1 times [2020-10-24 23:17:12,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:17:12,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647895628] [2020-10-24 23:17:12,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:17:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:17:13,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:13,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647895628] [2020-10-24 23:17:13,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:17:13,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 23:17:13,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23155237] [2020-10-24 23:17:13,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 23:17:13,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:17:13,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 23:17:13,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 23:17:13,079 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 4 states. [2020-10-24 23:17:13,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:17:13,168 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2020-10-24 23:17:13,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 23:17:13,169 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-24 23:17:13,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:17:13,170 INFO L225 Difference]: With dead ends: 55 [2020-10-24 23:17:13,170 INFO L226 Difference]: Without dead ends: 46 [2020-10-24 23:17:13,171 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 23:17:13,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-24 23:17:13,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 31. [2020-10-24 23:17:13,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-24 23:17:13,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-10-24 23:17:13,177 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 12 [2020-10-24 23:17:13,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:17:13,177 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-10-24 23:17:13,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 23:17:13,178 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-10-24 23:17:13,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 23:17:13,178 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:17:13,178 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:17:13,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 23:17:13,179 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:17:13,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:17:13,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1951233721, now seen corresponding path program 1 times [2020-10-24 23:17:13,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:17:13,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042167373] [2020-10-24 23:17:13,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:17:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:17:13,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:13,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042167373] [2020-10-24 23:17:13,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:17:13,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 23:17:13,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736295017] [2020-10-24 23:17:13,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 23:17:13,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:17:13,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 23:17:13,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 23:17:13,256 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 4 states. [2020-10-24 23:17:13,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:17:13,340 INFO L93 Difference]: Finished difference Result 57 states and 71 transitions. [2020-10-24 23:17:13,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 23:17:13,342 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-24 23:17:13,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:17:13,343 INFO L225 Difference]: With dead ends: 57 [2020-10-24 23:17:13,343 INFO L226 Difference]: Without dead ends: 48 [2020-10-24 23:17:13,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 23:17:13,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-24 23:17:13,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 31. [2020-10-24 23:17:13,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-24 23:17:13,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-10-24 23:17:13,352 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 13 [2020-10-24 23:17:13,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:17:13,352 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-10-24 23:17:13,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 23:17:13,352 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-10-24 23:17:13,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-24 23:17:13,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:17:13,354 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:17:13,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 23:17:13,354 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:17:13,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:17:13,355 INFO L82 PathProgramCache]: Analyzing trace with hash -555760345, now seen corresponding path program 1 times [2020-10-24 23:17:13,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:17:13,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172207986] [2020-10-24 23:17:13,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:17:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:17:13,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:13,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172207986] [2020-10-24 23:17:13,415 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:17:13,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-24 23:17:13,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836647545] [2020-10-24 23:17:13,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 23:17:13,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:17:13,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 23:17:13,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-24 23:17:13,419 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 4 states. [2020-10-24 23:17:13,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:17:13,496 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2020-10-24 23:17:13,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 23:17:13,497 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-24 23:17:13,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:17:13,499 INFO L225 Difference]: With dead ends: 55 [2020-10-24 23:17:13,499 INFO L226 Difference]: Without dead ends: 46 [2020-10-24 23:17:13,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-24 23:17:13,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-24 23:17:13,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 31. [2020-10-24 23:17:13,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-24 23:17:13,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-10-24 23:17:13,506 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 14 [2020-10-24 23:17:13,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:17:13,506 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-10-24 23:17:13,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 23:17:13,506 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-10-24 23:17:13,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-24 23:17:13,507 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:17:13,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:17:13,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-24 23:17:13,508 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:17:13,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:17:13,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1219247017, now seen corresponding path program 1 times [2020-10-24 23:17:13,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:17:13,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193304222] [2020-10-24 23:17:13,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:17:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:17:13,561 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:17:13,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:17:13,591 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:17:13,619 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:17:13,619 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:17:13,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-24 23:17:13,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:17:13 BoogieIcfgContainer [2020-10-24 23:17:13,656 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:17:13,657 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:17:13,657 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:17:13,657 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:17:13,658 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:17:12" (3/4) ... [2020-10-24 23:17:13,661 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:17:13,661 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:17:13,664 INFO L168 Benchmark]: Toolchain (without parser) took 2816.47 ms. Allocated memory was 44.0 MB in the beginning and 67.1 MB in the end (delta: 23.1 MB). Free memory was 21.2 MB in the beginning and 45.5 MB in the end (delta: -24.3 MB). Peak memory consumption was 384.5 kB. Max. memory is 16.1 GB. [2020-10-24 23:17:13,665 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 44.0 MB. Free memory was 29.1 MB in the beginning and 29.1 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:17:13,666 INFO L168 Benchmark]: CACSL2BoogieTranslator took 495.49 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 29.7 MB in the beginning and 39.2 MB in the end (delta: -9.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:13,667 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.62 ms. Allocated memory is still 54.5 MB. Free memory was 39.2 MB in the beginning and 37.4 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:17:13,668 INFO L168 Benchmark]: Boogie Preprocessor took 74.05 ms. Allocated memory is still 54.5 MB. Free memory was 37.4 MB in the beginning and 35.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:13,668 INFO L168 Benchmark]: RCFGBuilder took 748.32 ms. Allocated memory is still 54.5 MB. Free memory was 35.8 MB in the beginning and 29.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:13,670 INFO L168 Benchmark]: TraceAbstraction took 1367.59 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 28.7 MB in the beginning and 46.0 MB in the end (delta: -17.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:13,670 INFO L168 Benchmark]: Witness Printer took 4.86 ms. Allocated memory is still 67.1 MB. Free memory was 46.0 MB in the beginning and 45.5 MB in the end (delta: 477.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:17:13,676 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 44.0 MB. Free memory was 29.1 MB in the beginning and 29.1 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 495.49 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 29.7 MB in the beginning and 39.2 MB in the end (delta: -9.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.62 ms. Allocated memory is still 54.5 MB. Free memory was 39.2 MB in the beginning and 37.4 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.05 ms. Allocated memory is still 54.5 MB. Free memory was 37.4 MB in the beginning and 35.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 748.32 ms. Allocated memory is still 54.5 MB. Free memory was 35.8 MB in the beginning and 29.0 MB in the end (delta: 6.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1367.59 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 28.7 MB in the beginning and 46.0 MB in the end (delta: -17.2 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.86 ms. Allocated memory is still 67.1 MB. Free memory was 46.0 MB in the beginning and 45.5 MB in the end (delta: 477.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 81, overapproximation of someUnaryDOUBLEoperation at line 77. Possible FailurePath: [L76] double x = 0.0; [L77] double y = -0.0; [L21] __uint32_t msw, lsw; [L24] ieee_double_shape_type ew_u; [L25] ew_u.value = (x) [L26] EXPR ew_u.parts.msw [L26] (msw) = ew_u.parts.msw [L27] EXPR ew_u.parts.lsw [L27] (lsw) = ew_u.parts.lsw [L30-L31] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L33-L34] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L36-L37] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L40-L41] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L44] return 0; [L48] COND TRUE __fpclassify_double(x) == 0 [L49] return y; [L78] double res = fmin_double(x, y); [L81] EXPR res == -0.0 && __signbit_double(res) == 1 [L81] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L3] __assert_fail("0", "double_req_bl_1232a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 251 SDtfs, 64 SDslu, 298 SDs, 0 SdLazy, 84 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 60 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 799 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-10-24 23:17:16,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:17:16,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:17:16,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:17:16,407 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:17:16,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:17:16,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:17:16,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:17:16,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:17:16,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:17:16,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:17:16,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:17:16,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:17:16,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:17:16,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:17:16,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:17:16,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:17:16,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:17:16,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:17:16,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:17:16,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:17:16,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:17:16,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:17:16,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:17:16,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:17:16,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:17:16,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:17:16,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:17:16,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:17:16,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:17:16,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:17:16,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:17:16,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:17:16,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:17:16,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:17:16,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:17:16,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:17:16,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:17:16,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:17:16,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:17:16,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:17:16,459 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:17:16,509 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:17:16,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:17:16,511 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:17:16,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:17:16,512 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:17:16,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:17:16,512 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:17:16,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:17:16,513 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:17:16,513 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:17:16,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:17:16,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:17:16,514 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:17:16,514 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:17:16,514 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:17:16,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:17:16,515 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:17:16,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:17:16,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:17:16,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:17:16,516 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:17:16,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:17:16,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:17:16,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:17:16,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:17:16,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:17:16,518 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:17:16,518 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:17:16,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:17:16,518 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:17:16,519 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:17:16,519 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f0e84dafea36c954c87753335c0002922188c68 [2020-10-24 23:17:16,914 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:17:16,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:17:16,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:17:16,965 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:17:16,967 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:17:16,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2020-10-24 23:17:17,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d32f4ddaf/a597ca335e3f4ca38ca6a268a91b061f/FLAG254480d04 [2020-10-24 23:17:17,668 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:17:17,669 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1232a.c [2020-10-24 23:17:17,681 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d32f4ddaf/a597ca335e3f4ca38ca6a268a91b061f/FLAG254480d04 [2020-10-24 23:17:18,032 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d32f4ddaf/a597ca335e3f4ca38ca6a268a91b061f [2020-10-24 23:17:18,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:17:18,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:17:18,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:17:18,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:17:18,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:17:18,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:17:18" (1/1) ... [2020-10-24 23:17:18,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d2bc700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:18, skipping insertion in model container [2020-10-24 23:17:18,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:17:18" (1/1) ... [2020-10-24 23:17:18,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:17:18,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:17:18,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:17:18,338 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:17:18,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:17:18,388 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:17:18,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:18 WrapperNode [2020-10-24 23:17:18,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:17:18,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:17:18,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:17:18,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:17:18,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:18" (1/1) ... [2020-10-24 23:17:18,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:18" (1/1) ... [2020-10-24 23:17:18,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:17:18,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:17:18,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:17:18,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:17:18,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:18" (1/1) ... [2020-10-24 23:17:18,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:18" (1/1) ... [2020-10-24 23:17:18,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:18" (1/1) ... [2020-10-24 23:17:18,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:18" (1/1) ... [2020-10-24 23:17:18,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:18" (1/1) ... [2020-10-24 23:17:18,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:18" (1/1) ... [2020-10-24 23:17:18,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:18" (1/1) ... [2020-10-24 23:17:18,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:17:18,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:17:18,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:17:18,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:17:18,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:17:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-24 23:17:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:17:18,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:17:18,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:17:18,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:17:18,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:17:18,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:17:19,203 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:17:19,203 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-24 23:17:19,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:17:19 BoogieIcfgContainer [2020-10-24 23:17:19,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:17:19,207 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:17:19,208 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:17:19,212 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:17:19,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:17:18" (1/3) ... [2020-10-24 23:17:19,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec423b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:17:19, skipping insertion in model container [2020-10-24 23:17:19,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:18" (2/3) ... [2020-10-24 23:17:19,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec423b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:17:19, skipping insertion in model container [2020-10-24 23:17:19,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:17:19" (3/3) ... [2020-10-24 23:17:19,215 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1232a.c [2020-10-24 23:17:19,230 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:17:19,237 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:17:19,252 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:17:19,282 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:17:19,282 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:17:19,282 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:17:19,282 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:17:19,283 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:17:19,283 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:17:19,283 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:17:19,283 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:17:19,300 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-10-24 23:17:19,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:17:19,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:17:19,307 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:17:19,307 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:17:19,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:17:19,315 INFO L82 PathProgramCache]: Analyzing trace with hash -958075201, now seen corresponding path program 1 times [2020-10-24 23:17:19,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:17:19,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364072845] [2020-10-24 23:17:19,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 23:17:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:17:19,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:17:19,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:17:19,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:19,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:17:19,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:19,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364072845] [2020-10-24 23:17:19,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:17:19,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:17:19,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976947982] [2020-10-24 23:17:19,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:17:19,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:17:19,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:17:19,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:17:19,531 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-10-24 23:17:19,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:17:19,553 INFO L93 Difference]: Finished difference Result 63 states and 99 transitions. [2020-10-24 23:17:19,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:17:19,555 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 23:17:19,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:17:19,569 INFO L225 Difference]: With dead ends: 63 [2020-10-24 23:17:19,569 INFO L226 Difference]: Without dead ends: 29 [2020-10-24 23:17:19,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:17:19,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-24 23:17:19,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-24 23:17:19,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-24 23:17:19,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2020-10-24 23:17:19,627 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 10 [2020-10-24 23:17:19,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:17:19,627 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2020-10-24 23:17:19,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:17:19,628 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2020-10-24 23:17:19,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:17:19,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:17:19,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:17:19,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:17:19,844 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:17:19,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:17:19,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1001584898, now seen corresponding path program 1 times [2020-10-24 23:17:19,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:17:19,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596460479] [2020-10-24 23:17:19,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-24 23:17:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:17:19,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 23:17:19,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:17:20,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:20,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:17:20,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:20,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [596460479] [2020-10-24 23:17:20,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:17:20,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-24 23:17:20,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282474823] [2020-10-24 23:17:20,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 23:17:20,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:17:20,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 23:17:20,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 23:17:20,049 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 6 states. [2020-10-24 23:17:20,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:17:20,142 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2020-10-24 23:17:20,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 23:17:20,142 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-10-24 23:17:20,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:17:20,144 INFO L225 Difference]: With dead ends: 68 [2020-10-24 23:17:20,144 INFO L226 Difference]: Without dead ends: 59 [2020-10-24 23:17:20,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-24 23:17:20,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-24 23:17:20,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 31. [2020-10-24 23:17:20,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-24 23:17:20,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-10-24 23:17:20,153 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11 [2020-10-24 23:17:20,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:17:20,153 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-10-24 23:17:20,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 23:17:20,154 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-10-24 23:17:20,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-24 23:17:20,155 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:17:20,155 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:17:20,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:17:20,371 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:17:20,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:17:20,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1219247017, now seen corresponding path program 1 times [2020-10-24 23:17:20,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:17:20,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1689179195] [2020-10-24 23:17:20,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-24 23:17:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:17:20,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-24 23:17:20,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:17:20,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:20,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:17:20,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:20,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1689179195] [2020-10-24 23:17:20,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:17:20,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-24 23:17:20,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508682361] [2020-10-24 23:17:20,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 23:17:20,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:17:20,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 23:17:20,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 23:17:20,594 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 6 states. [2020-10-24 23:17:20,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:17:20,752 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2020-10-24 23:17:20,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 23:17:20,754 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-24 23:17:20,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:17:20,755 INFO L225 Difference]: With dead ends: 52 [2020-10-24 23:17:20,755 INFO L226 Difference]: Without dead ends: 28 [2020-10-24 23:17:20,756 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-24 23:17:20,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-24 23:17:20,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-24 23:17:20,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-24 23:17:20,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2020-10-24 23:17:20,766 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 14 [2020-10-24 23:17:20,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:17:20,766 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2020-10-24 23:17:20,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 23:17:20,766 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2020-10-24 23:17:20,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-24 23:17:20,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:17:20,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:17:20,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 23:17:20,983 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:17:20,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:17:20,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1012446717, now seen corresponding path program 1 times [2020-10-24 23:17:20,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:17:20,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110785967] [2020-10-24 23:17:20,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-24 23:17:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:17:21,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-24 23:17:21,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:17:21,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:21,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:17:21,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:21,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110785967] [2020-10-24 23:17:21,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:17:21,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-24 23:17:21,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874535266] [2020-10-24 23:17:21,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 23:17:21,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:17:21,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 23:17:21,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 23:17:21,147 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand 6 states. [2020-10-24 23:17:21,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:17:21,295 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2020-10-24 23:17:21,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 23:17:21,296 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-24 23:17:21,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:17:21,297 INFO L225 Difference]: With dead ends: 65 [2020-10-24 23:17:21,297 INFO L226 Difference]: Without dead ends: 56 [2020-10-24 23:17:21,298 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-24 23:17:21,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-24 23:17:21,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 30. [2020-10-24 23:17:21,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-24 23:17:21,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-10-24 23:17:21,304 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 16 [2020-10-24 23:17:21,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:17:21,304 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-10-24 23:17:21,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 23:17:21,305 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-10-24 23:17:21,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-24 23:17:21,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:17:21,305 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:17:21,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 23:17:21,507 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:17:21,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:17:21,508 INFO L82 PathProgramCache]: Analyzing trace with hash -414082333, now seen corresponding path program 1 times [2020-10-24 23:17:21,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:17:21,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751822269] [2020-10-24 23:17:21,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-24 23:17:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:17:21,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-24 23:17:21,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:17:21,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:21,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:17:21,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:21,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751822269] [2020-10-24 23:17:21,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:17:21,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 23:17:21,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578630592] [2020-10-24 23:17:21,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 23:17:21,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:17:21,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 23:17:21,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 23:17:21,687 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 4 states. [2020-10-24 23:17:21,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:17:21,701 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2020-10-24 23:17:21,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 23:17:21,701 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-24 23:17:21,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:17:21,702 INFO L225 Difference]: With dead ends: 40 [2020-10-24 23:17:21,702 INFO L226 Difference]: Without dead ends: 30 [2020-10-24 23:17:21,703 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 23:17:21,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-24 23:17:21,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-24 23:17:21,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-24 23:17:21,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2020-10-24 23:17:21,708 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 18 [2020-10-24 23:17:21,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:17:21,708 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2020-10-24 23:17:21,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 23:17:21,708 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2020-10-24 23:17:21,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-24 23:17:21,709 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:17:21,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:17:21,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-24 23:17:21,922 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:17:21,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:17:21,923 INFO L82 PathProgramCache]: Analyzing trace with hash -356824031, now seen corresponding path program 1 times [2020-10-24 23:17:21,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:17:21,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [706338070] [2020-10-24 23:17:21,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-24 23:17:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:17:22,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-24 23:17:22,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:17:22,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:22,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:17:22,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:22,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [706338070] [2020-10-24 23:17:22,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:17:22,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-10-24 23:17:22,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967375205] [2020-10-24 23:17:22,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 23:17:22,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:17:22,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 23:17:22,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-24 23:17:22,285 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand 9 states. [2020-10-24 23:17:22,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:17:22,443 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2020-10-24 23:17:22,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 23:17:22,443 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-10-24 23:17:22,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:17:22,444 INFO L225 Difference]: With dead ends: 42 [2020-10-24 23:17:22,444 INFO L226 Difference]: Without dead ends: 39 [2020-10-24 23:17:22,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-10-24 23:17:22,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-24 23:17:22,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2020-10-24 23:17:22,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-24 23:17:22,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2020-10-24 23:17:22,451 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 18 [2020-10-24 23:17:22,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:17:22,451 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2020-10-24 23:17:22,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 23:17:22,451 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2020-10-24 23:17:22,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-24 23:17:22,452 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:17:22,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:17:22,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-24 23:17:22,666 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:17:22,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:17:22,667 INFO L82 PathProgramCache]: Analyzing trace with hash -208358251, now seen corresponding path program 1 times [2020-10-24 23:17:22,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:17:22,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40535828] [2020-10-24 23:17:22,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-24 23:17:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:17:22,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-24 23:17:22,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:17:22,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:22,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:17:22,856 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-24 23:17:22,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:23,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40535828] [2020-10-24 23:17:23,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:17:23,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 23:17:23,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493444336] [2020-10-24 23:17:23,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 23:17:23,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:17:23,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 23:17:23,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-24 23:17:23,002 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 8 states. [2020-10-24 23:17:23,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:17:23,171 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2020-10-24 23:17:23,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 23:17:23,172 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-10-24 23:17:23,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:17:23,173 INFO L225 Difference]: With dead ends: 45 [2020-10-24 23:17:23,173 INFO L226 Difference]: Without dead ends: 27 [2020-10-24 23:17:23,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-24 23:17:23,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-24 23:17:23,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-24 23:17:23,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-24 23:17:23,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-24 23:17:23,179 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 19 [2020-10-24 23:17:23,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:17:23,180 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-24 23:17:23,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 23:17:23,180 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-24 23:17:23,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-24 23:17:23,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:17:23,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:17:23,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-24 23:17:23,397 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:17:23,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:17:23,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1524231306, now seen corresponding path program 1 times [2020-10-24 23:17:23,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:17:23,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944111699] [2020-10-24 23:17:23,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-10-24 23:17:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:17:23,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 15 conjunts are in the unsatisfiable core [2020-10-24 23:17:23,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:17:23,638 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:17:23,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:23,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:17:24,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:24,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944111699] [2020-10-24 23:17:24,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:17:24,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2020-10-24 23:17:24,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243116684] [2020-10-24 23:17:24,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-24 23:17:24,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:17:24,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-24 23:17:24,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-10-24 23:17:24,050 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 16 states. [2020-10-24 23:17:24,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:17:24,365 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-10-24 23:17:24,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-24 23:17:24,367 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 22 [2020-10-24 23:17:24,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:17:24,367 INFO L225 Difference]: With dead ends: 27 [2020-10-24 23:17:24,367 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 23:17:24,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2020-10-24 23:17:24,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 23:17:24,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 23:17:24,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 23:17:24,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 23:17:24,371 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-10-24 23:17:24,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:17:24,371 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 23:17:24,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-24 23:17:24,371 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 23:17:24,371 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 23:17:24,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-24 23:17:24,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 23:17:24,956 INFO L270 CegarLoopResult]: At program point L44(lines 20 45) the Hoare annotation is: (and (= ULTIMATE.start_fmin_double_~y (fp.neg (_ +zero 11 53))) (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53)) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x) (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3))) (= ((_ extract 63 32) v_skolemized_v_prenex_1_3) ULTIMATE.start___fpclassify_double_~msw~0))) (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_double_#res|))) [2020-10-24 23:17:24,956 INFO L270 CegarLoopResult]: At program point L44-1(lines 20 45) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= ULTIMATE.start_fmin_double_~y .cse0) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) (fp.neg (_ +zero 11 53))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0))) (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x .cse0) (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_double_#res|)))) [2020-10-24 23:17:24,956 INFO L274 CegarLoopResult]: For program point L36(lines 36 44) no Hoare annotation was computed. [2020-10-24 23:17:24,956 INFO L274 CegarLoopResult]: For program point L36-1(lines 36 44) no Hoare annotation was computed. [2020-10-24 23:17:24,956 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 23:17:24,956 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 23:17:24,956 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 23:17:24,957 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 23:17:24,957 INFO L277 CegarLoopResult]: At program point L86(lines 68 87) the Hoare annotation is: true [2020-10-24 23:17:24,957 INFO L274 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-10-24 23:17:24,957 INFO L274 CegarLoopResult]: For program point L53-2(line 53) no Hoare annotation was computed. [2020-10-24 23:17:24,958 INFO L270 CegarLoopResult]: At program point L53-3(lines 47 54) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= |ULTIMATE.start_fmin_double_#res| .cse0) (= ULTIMATE.start_fmin_double_~y .cse0) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) (fp.neg (_ +zero 11 53))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0))) (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x .cse0))) [2020-10-24 23:17:24,958 INFO L274 CegarLoopResult]: For program point L23-1(lines 23 28) no Hoare annotation was computed. [2020-10-24 23:17:24,958 INFO L270 CegarLoopResult]: At program point L23-2(lines 23 28) the Hoare annotation is: (and (= ULTIMATE.start_fmin_double_~y (fp.neg (_ +zero 11 53))) (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53)) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x)) [2020-10-24 23:17:24,958 INFO L274 CegarLoopResult]: For program point L23-3(lines 20 45) no Hoare annotation was computed. [2020-10-24 23:17:24,958 INFO L274 CegarLoopResult]: For program point L23-5(lines 23 28) no Hoare annotation was computed. [2020-10-24 23:17:24,958 INFO L270 CegarLoopResult]: At program point L23-6(lines 23 28) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= ULTIMATE.start_fmin_double_~y .cse0) (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x .cse0))) [2020-10-24 23:17:24,958 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-24 23:17:24,958 INFO L274 CegarLoopResult]: For program point L48(lines 48 49) no Hoare annotation was computed. [2020-10-24 23:17:24,959 INFO L274 CegarLoopResult]: For program point L23-7(lines 20 45) no Hoare annotation was computed. [2020-10-24 23:17:24,959 INFO L274 CegarLoopResult]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2020-10-24 23:17:24,959 INFO L274 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-10-24 23:17:24,959 INFO L274 CegarLoopResult]: For program point L40-1(lines 40 44) no Hoare annotation was computed. [2020-10-24 23:17:24,960 INFO L270 CegarLoopResult]: At program point L65(lines 56 66) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (exists ((v_skolemized_v_prenex_5_3 (_ BitVec 64))) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_5_3) ((_ extract 62 52) v_skolemized_v_prenex_5_3) ((_ extract 51 0) v_skolemized_v_prenex_5_3)) (fp.neg (_ +zero 11 53))) (= ULTIMATE.start___signbit_double_~msw~1 ((_ extract 63 32) v_skolemized_v_prenex_5_3)))) |ULTIMATE.start_main_#t~short18| (= .cse0 ULTIMATE.start_main_~res~0) (= |ULTIMATE.start_fmin_double_#res| .cse0) (= ULTIMATE.start_fmin_double_~y .cse0) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) (fp.neg (_ +zero 11 53))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0))) (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x .cse0) (= ULTIMATE.start___signbit_double_~x .cse0) (= (bvadd |ULTIMATE.start___signbit_double_#res| (_ bv4294967295 32)) (_ bv0 32)))) [2020-10-24 23:17:24,960 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 23:17:24,960 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 23:17:24,961 INFO L274 CegarLoopResult]: For program point L33(lines 33 44) no Hoare annotation was computed. [2020-10-24 23:17:24,961 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 23:17:24,961 INFO L274 CegarLoopResult]: For program point L33-1(lines 33 44) no Hoare annotation was computed. [2020-10-24 23:17:24,961 INFO L274 CegarLoopResult]: For program point L50(lines 50 51) no Hoare annotation was computed. [2020-10-24 23:17:24,961 INFO L274 CegarLoopResult]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2020-10-24 23:17:24,962 INFO L270 CegarLoopResult]: At program point L59-2(lines 59 63) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and |ULTIMATE.start_main_#t~short18| (= .cse0 ULTIMATE.start_main_~res~0) (= |ULTIMATE.start_fmin_double_#res| .cse0) (= ULTIMATE.start_fmin_double_~y .cse0) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) (fp.neg (_ +zero 11 53))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0))) (= ULTIMATE.start_fmin_double_~x (_ +zero 11 53)) (= ULTIMATE.start___fpclassify_double_~x .cse0) (= ULTIMATE.start___signbit_double_~x .cse0))) [2020-10-24 23:17:24,962 INFO L274 CegarLoopResult]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2020-10-24 23:17:24,977 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,979 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,979 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,979 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,980 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,981 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,981 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,981 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,982 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-10-24 23:17:24,983 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-10-24 23:17:24,983 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-10-24 23:17:24,983 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-10-24 23:17:24,984 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,984 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,984 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,984 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,985 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-10-24 23:17:24,986 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-10-24 23:17:24,986 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-10-24 23:17:24,986 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-10-24 23:17:24,986 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,987 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,987 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,987 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,989 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-10-24 23:17:24,989 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-10-24 23:17:24,989 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-10-24 23:17:24,989 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-10-24 23:17:24,990 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-10-24 23:17:24,990 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-10-24 23:17:24,990 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-10-24 23:17:24,991 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-10-24 23:17:24,991 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,992 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,992 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,992 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,992 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,993 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,993 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,993 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,994 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,995 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,995 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,996 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,996 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:24,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:17:24 BoogieIcfgContainer [2020-10-24 23:17:24,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:17:24,999 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:17:24,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:17:25,000 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:17:25,000 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:17:19" (3/4) ... [2020-10-24 23:17:25,004 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 23:17:25,018 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-10-24 23:17:25,019 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-24 23:17:25,020 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-24 23:17:25,020 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:17:25,053 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && (\exists v_skolemized_v_prenex_1_3 : bv64 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_v_prenex_1_3[63:63], v_skolemized_v_prenex_1_3[62:52], v_skolemized_v_prenex_1_3[51:0]) && v_skolemized_v_prenex_1_3[63:32] == msw)) && !(0bv32 == \result) [2020-10-24 23:17:25,054 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw)) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2020-10-24 23:17:25,054 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((aux-res == -0.0 && __signbit_double(res) == 1-aux && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw)) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2020-10-24 23:17:25,055 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((\exists v_skolemized_v_prenex_5_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_5_3[63:63], v_skolemized_v_prenex_5_3[62:52], v_skolemized_v_prenex_5_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_v_prenex_5_3[63:32]) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw)) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32 [2020-10-24 23:17:25,055 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw)) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && !(0bv32 == \result) [2020-10-24 23:17:25,096 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:17:25,096 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:17:25,099 INFO L168 Benchmark]: Toolchain (without parser) took 7059.56 ms. Allocated memory was 50.3 MB in the beginning and 73.4 MB in the end (delta: 23.1 MB). Free memory was 27.2 MB in the beginning and 40.2 MB in the end (delta: -12.9 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:25,099 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 37.7 MB. Free memory was 23.6 MB in the beginning and 23.6 MB in the end (delta: 43.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:17:25,100 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.99 ms. Allocated memory is still 50.3 MB. Free memory was 26.6 MB in the beginning and 28.8 MB in the end (delta: -2.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:25,101 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.59 ms. Allocated memory is still 50.3 MB. Free memory was 28.8 MB in the beginning and 26.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:25,101 INFO L168 Benchmark]: Boogie Preprocessor took 41.66 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 25.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:17:25,102 INFO L168 Benchmark]: RCFGBuilder took 721.40 ms. Allocated memory is still 50.3 MB. Free memory was 25.2 MB in the beginning and 26.9 MB in the end (delta: -1.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:25,102 INFO L168 Benchmark]: TraceAbstraction took 5791.19 ms. Allocated memory was 50.3 MB in the beginning and 73.4 MB in the end (delta: 23.1 MB). Free memory was 26.5 MB in the beginning and 44.4 MB in the end (delta: -17.9 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:25,103 INFO L168 Benchmark]: Witness Printer took 97.17 ms. Allocated memory is still 73.4 MB. Free memory was 44.4 MB in the beginning and 40.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:25,106 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 37.7 MB. Free memory was 23.6 MB in the beginning and 23.6 MB in the end (delta: 43.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 343.99 ms. Allocated memory is still 50.3 MB. Free memory was 26.6 MB in the beginning and 28.8 MB in the end (delta: -2.3 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.59 ms. Allocated memory is still 50.3 MB. Free memory was 28.8 MB in the beginning and 26.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.66 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 25.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 721.40 ms. Allocated memory is still 50.3 MB. Free memory was 25.2 MB in the beginning and 26.9 MB in the end (delta: -1.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5791.19 ms. Allocated memory was 50.3 MB in the beginning and 73.4 MB in the end (delta: 23.1 MB). Free memory was 26.5 MB in the beginning and 44.4 MB in the end (delta: -17.9 MB). Peak memory consumption was 26.5 MB. Max. memory is 16.1 GB. * Witness Printer took 97.17 ms. Allocated memory is still 73.4 MB. Free memory was 44.4 MB in the beginning and 40.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x - InvariantResult [Line: 20]: Loop Invariant [2020-10-24 23:17:25,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,124 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,124 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,124 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,125 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: (((y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw)) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && !(0bv32 == \result) - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 56]: Loop Invariant [2020-10-24 23:17:25,125 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-10-24 23:17:25,126 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-10-24 23:17:25,126 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-10-24 23:17:25,126 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-10-24 23:17:25,126 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,127 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,127 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,127 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,128 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-10-24 23:17:25,128 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-10-24 23:17:25,128 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-10-24 23:17:25,128 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-10-24 23:17:25,129 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,129 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,129 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,129 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: (((((((((\exists v_skolemized_v_prenex_5_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_5_3[63:63], v_skolemized_v_prenex_5_3[62:52], v_skolemized_v_prenex_5_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_v_prenex_5_3[63:32]) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw)) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 20]: Loop Invariant [2020-10-24 23:17:25,131 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-10-24 23:17:25,132 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-10-24 23:17:25,132 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-10-24 23:17:25,132 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-10-24 23:17:25,132 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-10-24 23:17:25,133 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-10-24 23:17:25,133 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-10-24 23:17:25,133 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] Derived loop invariant: (((y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && (\exists v_skolemized_v_prenex_1_3 : bv64 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_v_prenex_1_3[63:63], v_skolemized_v_prenex_1_3[62:52], v_skolemized_v_prenex_1_3[51:0]) && v_skolemized_v_prenex_1_3[63:32] == msw)) && !(0bv32 == \result) - InvariantResult [Line: 47]: Loop Invariant [2020-10-24 23:17:25,134 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,135 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,135 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,135 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,137 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,137 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,138 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,138 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: (((\result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw)) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 59]: Loop Invariant [2020-10-24 23:17:25,139 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,139 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,139 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,139 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,140 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,140 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,140 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-10-24 23:17:25,140 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: ((((((aux-res == -0.0 && __signbit_double(res) == 1-aux && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && y == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_7[63:32] == msw)) && x == ~Pluszero~LONGDOUBLE()) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.2s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 252 SDtfs, 287 SDslu, 527 SDs, 0 SdLazy, 183 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 196 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 61 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 16 NumberOfFragments, 221 HoareAnnotationTreeSize, 8 FomulaSimplifications, 51 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 33 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 240 ConstructedInterpolants, 32 QuantifiedInterpolants, 21250 SizeOfPredicates, 38 NumberOfNonLiveVariables, 555 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...