./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0832b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e1a00cf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0832b.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 712005727f62c46a009e5aa995b5d1c386dc6cd1 ................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0832b.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 712005727f62c46a009e5aa995b5d1c386dc6cd1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-0e1a00c [2020-11-29 15:07:03,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 15:07:03,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 15:07:03,500 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 15:07:03,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 15:07:03,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 15:07:03,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 15:07:03,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 15:07:03,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 15:07:03,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 15:07:03,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 15:07:03,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 15:07:03,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 15:07:03,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 15:07:03,544 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 15:07:03,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 15:07:03,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 15:07:03,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 15:07:03,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 15:07:03,556 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 15:07:03,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 15:07:03,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 15:07:03,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 15:07:03,568 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 15:07:03,574 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 15:07:03,574 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 15:07:03,575 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 15:07:03,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 15:07:03,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 15:07:03,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 15:07:03,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 15:07:03,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 15:07:03,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 15:07:03,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 15:07:03,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 15:07:03,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 15:07:03,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 15:07:03,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 15:07:03,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 15:07:03,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 15:07:03,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 15:07:03,593 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 15:07:03,637 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 15:07:03,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 15:07:03,639 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 15:07:03,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 15:07:03,640 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 15:07:03,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 15:07:03,640 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 15:07:03,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 15:07:03,641 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 15:07:03,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 15:07:03,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 15:07:03,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 15:07:03,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 15:07:03,642 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 15:07:03,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 15:07:03,642 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 15:07:03,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 15:07:03,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 15:07:03,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 15:07:03,643 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 15:07:03,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 15:07:03,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 15:07:03,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 15:07:03,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 15:07:03,645 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 15:07:03,645 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 15:07:03,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 15:07:03,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 15:07:03,645 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 15:07:03,646 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 712005727f62c46a009e5aa995b5d1c386dc6cd1 [2020-11-29 15:07:04,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 15:07:04,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 15:07:04,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 15:07:04,089 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 15:07:04,091 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 15:07:04,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0832b.c [2020-11-29 15:07:04,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/780b466a2/e06c955d6bd84bf49036105465bdcff0/FLAGae8430d71 [2020-11-29 15:07:04,738 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 15:07:04,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0832b.c [2020-11-29 15:07:04,755 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/780b466a2/e06c955d6bd84bf49036105465bdcff0/FLAGae8430d71 [2020-11-29 15:07:05,097 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/780b466a2/e06c955d6bd84bf49036105465bdcff0 [2020-11-29 15:07:05,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 15:07:05,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 15:07:05,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 15:07:05,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 15:07:05,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 15:07:05,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:07:05" (1/1) ... [2020-11-29 15:07:05,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b39da66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:05, skipping insertion in model container [2020-11-29 15:07:05,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:07:05" (1/1) ... [2020-11-29 15:07:05,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 15:07:05,170 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 15:07:05,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 15:07:05,407 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 15:07:05,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 15:07:05,476 INFO L208 MainTranslator]: Completed translation [2020-11-29 15:07:05,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:05 WrapperNode [2020-11-29 15:07:05,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 15:07:05,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 15:07:05,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 15:07:05,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 15:07:05,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:05" (1/1) ... [2020-11-29 15:07:05,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:05" (1/1) ... [2020-11-29 15:07:05,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 15:07:05,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 15:07:05,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 15:07:05,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 15:07:05,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:05" (1/1) ... [2020-11-29 15:07:05,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:05" (1/1) ... [2020-11-29 15:07:05,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:05" (1/1) ... [2020-11-29 15:07:05,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:05" (1/1) ... [2020-11-29 15:07:05,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:05" (1/1) ... [2020-11-29 15:07:05,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:05" (1/1) ... [2020-11-29 15:07:05,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:05" (1/1) ... [2020-11-29 15:07:05,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 15:07:05,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 15:07:05,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 15:07:05,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 15:07:05,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:05" (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 [2020-11-29 15:07:05,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 15:07:05,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 15:07:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 15:07:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 15:07:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 15:07:05,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 15:07:05,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 15:07:05,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 15:07:05,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-29 15:07:05,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 15:07:06,153 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 15:07:06,153 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-29 15:07:06,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:07:06 BoogieIcfgContainer [2020-11-29 15:07:06,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 15:07:06,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 15:07:06,157 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 15:07:06,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 15:07:06,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:07:05" (1/3) ... [2020-11-29 15:07:06,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d6f2028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:07:06, skipping insertion in model container [2020-11-29 15:07:06,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:05" (2/3) ... [2020-11-29 15:07:06,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d6f2028 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:07:06, skipping insertion in model container [2020-11-29 15:07:06,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:07:06" (3/3) ... [2020-11-29 15:07:06,164 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2020-11-29 15:07:06,180 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 15:07:06,184 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 15:07:06,197 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 15:07:06,225 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 15:07:06,225 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 15:07:06,225 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 15:07:06,225 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 15:07:06,225 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 15:07:06,226 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 15:07:06,226 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 15:07:06,226 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 15:07:06,241 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-11-29 15:07:06,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 15:07:06,245 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:07:06,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:07:06,246 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:07:06,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:07:06,253 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2020-11-29 15:07:06,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 15:07:06,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037051459] [2020-11-29 15:07:06,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 15:07:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:07:06,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:07:06,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037051459] [2020-11-29 15:07:06,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:07:06,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 15:07:06,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988664515] [2020-11-29 15:07:06,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 15:07:06,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 15:07:06,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 15:07:06,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 15:07:06,476 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-11-29 15:07:06,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:07:06,505 INFO L93 Difference]: Finished difference Result 71 states and 113 transitions. [2020-11-29 15:07:06,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 15:07:06,507 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-29 15:07:06,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:07:06,533 INFO L225 Difference]: With dead ends: 71 [2020-11-29 15:07:06,533 INFO L226 Difference]: Without dead ends: 33 [2020-11-29 15:07:06,543 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 [2020-11-29 15:07:06,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-29 15:07:06,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-11-29 15:07:06,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-29 15:07:06,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2020-11-29 15:07:06,591 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2020-11-29 15:07:06,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:07:06,592 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2020-11-29 15:07:06,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 15:07:06,592 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2020-11-29 15:07:06,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 15:07:06,593 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:07:06,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:07:06,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 15:07:06,594 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:07:06,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:07:06,595 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2020-11-29 15:07:06,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 15:07:06,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513299772] [2020-11-29 15:07:06,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 15:07:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 15:07:06,713 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 15:07:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 15:07:06,756 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 15:07:06,786 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 15:07:06,787 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 15:07:06,788 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 15:07:06,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:07:06 BoogieIcfgContainer [2020-11-29 15:07:06,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 15:07:06,830 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 15:07:06,830 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 15:07:06,831 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 15:07:06,831 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:07:06" (3/4) ... [2020-11-29 15:07:06,835 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 15:07:06,835 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 15:07:06,837 INFO L168 Benchmark]: Toolchain (without parser) took 1734.68 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 27.0 MB in the beginning and 34.5 MB in the end (delta: -7.5 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2020-11-29 15:07:06,838 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 50.3 MB. Free memory was 32.1 MB in the beginning and 32.1 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 15:07:06,839 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.95 ms. Allocated memory is still 50.3 MB. Free memory was 26.4 MB in the beginning and 25.9 MB in the end (delta: 449.3 kB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-11-29 15:07:06,840 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.67 ms. Allocated memory is still 50.3 MB. Free memory was 25.9 MB in the beginning and 24.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 15:07:06,841 INFO L168 Benchmark]: Boogie Preprocessor took 37.52 ms. Allocated memory is still 50.3 MB. Free memory was 24.0 MB in the beginning and 22.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 15:07:06,842 INFO L168 Benchmark]: RCFGBuilder took 585.88 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 22.2 MB in the beginning and 42.5 MB in the end (delta: -20.3 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2020-11-29 15:07:06,843 INFO L168 Benchmark]: TraceAbstraction took 672.52 ms. Allocated memory is still 62.9 MB. Free memory was 42.2 MB in the beginning and 34.9 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-11-29 15:07:06,843 INFO L168 Benchmark]: Witness Printer took 4.85 ms. Allocated memory is still 62.9 MB. Free memory was 34.9 MB in the beginning and 34.5 MB in the end (delta: 315.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 15:07:06,848 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 50.3 MB. Free memory was 32.1 MB in the beginning and 32.1 MB in the end (delta: 39.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 366.95 ms. Allocated memory is still 50.3 MB. Free memory was 26.4 MB in the beginning and 25.9 MB in the end (delta: 449.3 kB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.67 ms. Allocated memory is still 50.3 MB. Free memory was 25.9 MB in the beginning and 24.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.52 ms. Allocated memory is still 50.3 MB. Free memory was 24.0 MB in the beginning and 22.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 585.88 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 22.2 MB in the beginning and 42.5 MB in the end (delta: -20.3 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 672.52 ms. Allocated memory is still 62.9 MB. Free memory was 42.2 MB in the beginning and 34.9 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.85 ms. Allocated memory is still 62.9 MB. Free memory was 34.9 MB in the beginning and 34.5 MB in the end (delta: 315.9 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 someBinaryFLOATComparisonOperation at line 123, overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of bitwiseAnd at line 48, overapproximation of someUnaryFLOAToperation at line 119, overapproximation of someBinaryArithmeticFLOAToperation at line 52. Possible FailurePath: [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L119] float x = -0.0f; [L39] float y, hi, lo, c, t; [L40] __int32_t k = 0, xsb, sx; [L41] __uint32_t hx; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L44] ieee_float_shape_type gf_u; [L45] gf_u.value = (x) [L46] EXPR gf_u.word [L46] (sx) = gf_u.word [L48] xsb = (sx >> 31) & 1 [L49] hx = sx & 0x7fffffff VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L51] COND TRUE ((hx) > 0x7f800000L) [L52] return x + x; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L120] float res = __ieee754_expf(x); [L123] COND TRUE res != 1.0f VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L3] __assert_fail("0", "float_req_bl_0832b.c", 3, "reach_error") VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={6:0}, ln2LO_exp={10:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-0e1a00c [2020-11-29 15:07:09,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 15:07:09,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 15:07:09,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 15:07:09,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 15:07:09,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 15:07:09,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 15:07:09,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 15:07:09,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 15:07:09,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 15:07:09,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 15:07:09,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 15:07:09,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 15:07:09,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 15:07:09,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 15:07:09,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 15:07:09,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 15:07:09,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 15:07:09,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 15:07:09,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 15:07:09,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 15:07:09,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 15:07:09,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 15:07:09,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 15:07:09,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 15:07:09,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 15:07:09,594 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 15:07:09,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 15:07:09,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 15:07:09,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 15:07:09,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 15:07:09,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 15:07:09,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 15:07:09,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 15:07:09,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 15:07:09,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 15:07:09,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 15:07:09,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 15:07:09,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 15:07:09,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 15:07:09,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 15:07:09,606 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 15:07:09,632 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 15:07:09,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 15:07:09,635 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 15:07:09,635 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 15:07:09,635 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 15:07:09,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 15:07:09,636 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 15:07:09,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 15:07:09,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 15:07:09,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 15:07:09,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 15:07:09,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 15:07:09,638 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 15:07:09,638 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 15:07:09,639 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 15:07:09,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 15:07:09,639 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 15:07:09,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 15:07:09,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 15:07:09,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 15:07:09,641 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 15:07:09,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 15:07:09,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 15:07:09,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 15:07:09,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 15:07:09,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 15:07:09,642 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 15:07:09,642 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 15:07:09,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 15:07:09,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 15:07:09,643 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 15:07:09,643 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 712005727f62c46a009e5aa995b5d1c386dc6cd1 [2020-11-29 15:07:10,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 15:07:10,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 15:07:10,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 15:07:10,135 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 15:07:10,136 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 15:07:10,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0832b.c [2020-11-29 15:07:10,237 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd94f92a4/93f9509494e946c1afe9b12b397e2751/FLAG0e5ec3313 [2020-11-29 15:07:10,865 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 15:07:10,866 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0832b.c [2020-11-29 15:07:10,883 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd94f92a4/93f9509494e946c1afe9b12b397e2751/FLAG0e5ec3313 [2020-11-29 15:07:11,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd94f92a4/93f9509494e946c1afe9b12b397e2751 [2020-11-29 15:07:11,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 15:07:11,251 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 15:07:11,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 15:07:11,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 15:07:11,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 15:07:11,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:07:11" (1/1) ... [2020-11-29 15:07:11,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77f71df9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:11, skipping insertion in model container [2020-11-29 15:07:11,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:07:11" (1/1) ... [2020-11-29 15:07:11,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 15:07:11,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 15:07:11,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 15:07:11,607 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 15:07:11,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 15:07:11,731 INFO L208 MainTranslator]: Completed translation [2020-11-29 15:07:11,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:11 WrapperNode [2020-11-29 15:07:11,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 15:07:11,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 15:07:11,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 15:07:11,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 15:07:11,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:11" (1/1) ... [2020-11-29 15:07:11,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:11" (1/1) ... [2020-11-29 15:07:11,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 15:07:11,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 15:07:11,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 15:07:11,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 15:07:11,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:11" (1/1) ... [2020-11-29 15:07:11,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:11" (1/1) ... [2020-11-29 15:07:11,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:11" (1/1) ... [2020-11-29 15:07:11,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:11" (1/1) ... [2020-11-29 15:07:11,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:11" (1/1) ... [2020-11-29 15:07:11,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:11" (1/1) ... [2020-11-29 15:07:11,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:11" (1/1) ... [2020-11-29 15:07:11,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 15:07:11,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 15:07:11,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 15:07:11,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 15:07:11,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:11" (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 [2020-11-29 15:07:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-11-29 15:07:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 15:07:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 15:07:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-29 15:07:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 15:07:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 15:07:11,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 15:07:11,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-29 15:07:11,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 15:07:11,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 15:07:22,808 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 15:07:22,811 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-29 15:07:22,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:07:22 BoogieIcfgContainer [2020-11-29 15:07:22,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 15:07:22,820 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 15:07:22,820 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 15:07:22,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 15:07:22,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:07:11" (1/3) ... [2020-11-29 15:07:22,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b957727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:07:22, skipping insertion in model container [2020-11-29 15:07:22,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:11" (2/3) ... [2020-11-29 15:07:22,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b957727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:07:22, skipping insertion in model container [2020-11-29 15:07:22,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:07:22" (3/3) ... [2020-11-29 15:07:22,828 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2020-11-29 15:07:22,845 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 15:07:22,850 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 15:07:22,862 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 15:07:22,906 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 15:07:22,907 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 15:07:22,907 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 15:07:22,907 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 15:07:22,907 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 15:07:22,907 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 15:07:22,908 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 15:07:22,908 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 15:07:22,927 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-11-29 15:07:22,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 15:07:22,942 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:07:22,943 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:07:22,943 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:07:22,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:07:22,950 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2020-11-29 15:07:22,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 15:07:22,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1768638549] [2020-11-29 15:07:22,976 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 [2020-11-29 15:07:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:07:23,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 15:07:23,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 15:07:23,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:07:23,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 15:07:23,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:07:23,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1768638549] [2020-11-29 15:07:23,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:07:23,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 15:07:23,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954629019] [2020-11-29 15:07:23,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 15:07:23,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 15:07:23,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 15:07:23,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 15:07:23,602 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-11-29 15:07:23,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:07:23,632 INFO L93 Difference]: Finished difference Result 71 states and 113 transitions. [2020-11-29 15:07:23,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 15:07:23,633 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-29 15:07:23,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:07:23,646 INFO L225 Difference]: With dead ends: 71 [2020-11-29 15:07:23,646 INFO L226 Difference]: Without dead ends: 33 [2020-11-29 15:07:23,649 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 15:07:23,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-29 15:07:23,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-11-29 15:07:23,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-29 15:07:23,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2020-11-29 15:07:23,688 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2020-11-29 15:07:23,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:07:23,688 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2020-11-29 15:07:23,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 15:07:23,688 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2020-11-29 15:07:23,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 15:07:23,689 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:07:23,689 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:07:23,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 15:07:23,903 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:07:23,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:07:23,905 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2020-11-29 15:07:23,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 15:07:23,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197030141] [2020-11-29 15:07:23,906 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 [2020-11-29 15:07:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:07:24,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 15:07:24,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 15:07:24,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:07:24,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 15:07:24,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:07:24,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197030141] [2020-11-29 15:07:24,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:07:24,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 15:07:24,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504224072] [2020-11-29 15:07:24,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 15:07:24,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 15:07:24,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 15:07:24,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 15:07:24,869 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand 8 states. [2020-11-29 15:07:36,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:07:36,350 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2020-11-29 15:07:36,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 15:07:36,441 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2020-11-29 15:07:36,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:07:36,443 INFO L225 Difference]: With dead ends: 54 [2020-11-29 15:07:36,443 INFO L226 Difference]: Without dead ends: 33 [2020-11-29 15:07:36,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-29 15:07:36,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-29 15:07:36,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 29. [2020-11-29 15:07:36,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-29 15:07:36,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2020-11-29 15:07:36,450 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 9 [2020-11-29 15:07:36,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:07:36,451 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2020-11-29 15:07:36,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 15:07:36,451 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2020-11-29 15:07:36,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 15:07:36,452 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:07:36,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:07:36,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 15:07:36,657 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:07:36,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:07:36,660 INFO L82 PathProgramCache]: Analyzing trace with hash -239562945, now seen corresponding path program 1 times [2020-11-29 15:07:36,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 15:07:36,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [821139083] [2020-11-29 15:07:36,661 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 [2020-11-29 15:07:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:07:37,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 15:07:37,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 15:07:37,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:07:37,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 15:07:39,063 WARN L197 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-29 15:07:39,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:07:39,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [821139083] [2020-11-29 15:07:39,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:07:39,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-11-29 15:07:39,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961370455] [2020-11-29 15:07:39,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 15:07:39,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 15:07:39,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 15:07:39,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-29 15:07:39,275 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 10 states. [2020-11-29 15:08:04,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:08:04,121 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-11-29 15:08:04,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 15:08:04,122 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-11-29 15:08:04,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:08:04,123 INFO L225 Difference]: With dead ends: 33 [2020-11-29 15:08:04,123 INFO L226 Difference]: Without dead ends: 29 [2020-11-29 15:08:04,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-11-29 15:08:04,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-29 15:08:04,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-29 15:08:04,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-29 15:08:04,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-11-29 15:08:04,130 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 15 [2020-11-29 15:08:04,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:08:04,130 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-11-29 15:08:04,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 15:08:04,131 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-11-29 15:08:04,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 15:08:04,132 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 15:08:04,132 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 15:08:04,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 15:08:04,346 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 15:08:04,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 15:08:04,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1708303706, now seen corresponding path program 1 times [2020-11-29 15:08:04,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 15:08:04,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291629656] [2020-11-29 15:08:04,350 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 [2020-11-29 15:08:05,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 15:08:05,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 15:08:05,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 15:08:05,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:08:05,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 15:08:06,248 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-11-29 15:08:06,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 15:08:06,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291629656] [2020-11-29 15:08:06,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 15:08:06,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-29 15:08:06,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106657373] [2020-11-29 15:08:06,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 15:08:06,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 15:08:06,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 15:08:06,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 15:08:06,769 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2020-11-29 15:08:06,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 15:08:06,939 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2020-11-29 15:08:06,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 15:08:06,941 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-11-29 15:08:06,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 15:08:06,941 INFO L225 Difference]: With dead ends: 29 [2020-11-29 15:08:06,941 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 15:08:06,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 15:08:06,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 15:08:06,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 15:08:06,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 15:08:06,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 15:08:06,943 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-29 15:08:06,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 15:08:06,943 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 15:08:06,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 15:08:06,943 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 15:08:06,943 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 15:08:07,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 15:08:07,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 15:08:07,362 INFO L262 CegarLoopResult]: For program point L60(lines 60 75) no Hoare annotation was computed. [2020-11-29 15:08:07,362 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 15:08:07,362 INFO L262 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 15:08:07,362 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 15:08:07,362 INFO L262 CegarLoopResult]: For program point L61(lines 61 70) no Hoare annotation was computed. [2020-11-29 15:08:07,362 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 15:08:07,362 INFO L262 CegarLoopResult]: For program point L61-2(lines 61 70) no Hoare annotation was computed. [2020-11-29 15:08:07,363 INFO L262 CegarLoopResult]: For program point L53(lines 53 54) no Hoare annotation was computed. [2020-11-29 15:08:07,363 INFO L262 CegarLoopResult]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2020-11-29 15:08:07,363 INFO L258 CegarLoopResult]: At program point L86-2(lines 86 90) the Hoare annotation is: false [2020-11-29 15:08:07,363 INFO L265 CegarLoopResult]: At program point L128(lines 113 129) the Hoare annotation is: true [2020-11-29 15:08:07,363 INFO L262 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-11-29 15:08:07,363 INFO L262 CegarLoopResult]: For program point L54-2(line 54) no Hoare annotation was computed. [2020-11-29 15:08:07,363 INFO L262 CegarLoopResult]: For program point L104(lines 104 108) no Hoare annotation was computed. [2020-11-29 15:08:07,364 INFO L262 CegarLoopResult]: For program point L104-1(lines 97 110) no Hoare annotation was computed. [2020-11-29 15:08:07,364 INFO L262 CegarLoopResult]: For program point L104-2(lines 104 108) no Hoare annotation was computed. [2020-11-29 15:08:07,364 INFO L262 CegarLoopResult]: For program point L55(lines 55 56) no Hoare annotation was computed. [2020-11-29 15:08:07,364 INFO L262 CegarLoopResult]: For program point L80(lines 80 83) no Hoare annotation was computed. [2020-11-29 15:08:07,364 INFO L262 CegarLoopResult]: For program point L72(lines 72 75) no Hoare annotation was computed. [2020-11-29 15:08:07,364 INFO L262 CegarLoopResult]: For program point L72-2(lines 60 75) no Hoare annotation was computed. [2020-11-29 15:08:07,364 INFO L262 CegarLoopResult]: For program point L73(lines 73 74) no Hoare annotation was computed. [2020-11-29 15:08:07,364 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 15:08:07,365 INFO L262 CegarLoopResult]: For program point L123(lines 123 126) no Hoare annotation was computed. [2020-11-29 15:08:07,365 INFO L262 CegarLoopResult]: For program point L57(lines 57 58) no Hoare annotation was computed. [2020-11-29 15:08:07,365 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 15:08:07,365 INFO L262 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2020-11-29 15:08:07,365 INFO L258 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2020-11-29 15:08:07,365 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 15:08:07,365 INFO L262 CegarLoopResult]: For program point L91(lines 91 95) no Hoare annotation was computed. [2020-11-29 15:08:07,366 INFO L262 CegarLoopResult]: For program point L91-1(lines 84 97) no Hoare annotation was computed. [2020-11-29 15:08:07,366 INFO L262 CegarLoopResult]: For program point L91-2(lines 91 95) no Hoare annotation was computed. [2020-11-29 15:08:07,366 INFO L262 CegarLoopResult]: For program point L84(lines 84 110) no Hoare annotation was computed. [2020-11-29 15:08:07,366 INFO L262 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2020-11-29 15:08:07,366 INFO L258 CegarLoopResult]: At program point L109(lines 38 111) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0))) (.cse0 (fp.neg (_ +zero 8 24)))) (and (= ULTIMATE.start___ieee754_expf_~x .cse0) (= currentRoundingMode roundNearestTiesToEven) (= ~one_exp~0 .cse1) (= (fp.add currentRoundingMode .cse1 .cse0) |ULTIMATE.start___ieee754_expf_#res|))) [2020-11-29 15:08:07,366 INFO L262 CegarLoopResult]: For program point L43-1(lines 43 47) no Hoare annotation was computed. [2020-11-29 15:08:07,366 INFO L258 CegarLoopResult]: At program point L43-2(lines 43 47) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_expf_~x (fp.neg (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven) (= ~one_exp~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0))) (= ~huge_exp~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-11-29 15:08:07,367 INFO L262 CegarLoopResult]: For program point L43-3(lines 43 47) no Hoare annotation was computed. [2020-11-29 15:08:07,381 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:08:07,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,384 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,385 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,385 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,385 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,389 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:08:07,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,390 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,391 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,391 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,393 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:08:07,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,395 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,402 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,403 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:08:07,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:08:07 BoogieIcfgContainer [2020-11-29 15:08:07,409 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 15:08:07,410 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 15:08:07,410 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 15:08:07,411 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 15:08:07,411 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:07:22" (3/4) ... [2020-11-29 15:08:07,415 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 15:08:07,436 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-29 15:08:07,437 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 15:08:07,437 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 15:08:07,438 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 15:08:07,472 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) == \result [2020-11-29 15:08:07,557 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-11-29 15:08:07,558 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 15:08:07,559 INFO L168 Benchmark]: Toolchain (without parser) took 56313.91 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 23.2 MB in the beginning and 26.7 MB in the end (delta: -3.5 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2020-11-29 15:08:07,560 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 37.7 MB. Free memory was 24.2 MB in the beginning and 24.2 MB in the end (delta: 24.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 15:08:07,561 INFO L168 Benchmark]: CACSL2BoogieTranslator took 485.23 ms. Allocated memory is still 46.1 MB. Free memory was 22.6 MB in the beginning and 30.2 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2020-11-29 15:08:07,561 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.16 ms. Allocated memory is still 46.1 MB. Free memory was 30.2 MB in the beginning and 28.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 15:08:07,562 INFO L168 Benchmark]: Boogie Preprocessor took 63.15 ms. Allocated memory is still 46.1 MB. Free memory was 28.1 MB in the beginning and 26.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 15:08:07,562 INFO L168 Benchmark]: RCFGBuilder took 10944.20 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 26.0 MB in the beginning and 28.6 MB in the end (delta: -2.6 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. [2020-11-29 15:08:07,563 INFO L168 Benchmark]: TraceAbstraction took 44589.86 ms. Allocated memory is still 56.6 MB. Free memory was 28.4 MB in the beginning and 33.4 MB in the end (delta: -5.1 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2020-11-29 15:08:07,563 INFO L168 Benchmark]: Witness Printer took 147.85 ms. Allocated memory is still 56.6 MB. Free memory was 33.4 MB in the beginning and 26.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 15:08:07,567 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 37.7 MB. Free memory was 24.2 MB in the beginning and 24.2 MB in the end (delta: 24.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 485.23 ms. Allocated memory is still 46.1 MB. Free memory was 22.6 MB in the beginning and 30.2 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.16 ms. Allocated memory is still 46.1 MB. Free memory was 30.2 MB in the beginning and 28.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.15 ms. Allocated memory is still 46.1 MB. Free memory was 28.1 MB in the beginning and 26.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10944.20 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 26.0 MB in the beginning and 28.6 MB in the end (delta: -2.6 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 44589.86 ms. Allocated memory is still 56.6 MB. Free memory was 28.4 MB in the beginning and 33.4 MB in the end (delta: -5.1 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. * Witness Printer took 147.85 ms. Allocated memory is still 56.6 MB. Free memory was 33.4 MB in the beginning and 26.7 MB in the end (delta: 6.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * 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: 113]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant [2020-11-29 15:08:07,580 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:08:07,580 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,580 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,581 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,581 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,581 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,585 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:08:07,585 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,586 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,586 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,588 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,588 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,588 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) == \result - InvariantResult [Line: 43]: Loop Invariant [2020-11-29 15:08:07,589 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:08:07,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,590 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,591 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,591 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 15:08:07,592 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,592 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,592 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,592 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 15:08:07,593 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0))) && huge_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 44.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 36.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 102 SDtfs, 91 SDslu, 191 SDs, 0 SdLazy, 57 SolverSat, 5 SolverUnsat, 16 SolverUnknown, 0 SolverNotchecked, 35.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 70 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 51 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 90 ConstructedInterpolants, 2 QuantifiedInterpolants, 9890 SizeOfPredicates, 19 NumberOfNonLiveVariables, 313 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...