./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092c.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer --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 10b157bbf40e5e7436c6fc32559679f4a195c114 ................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092c.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer --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 10b157bbf40e5e7436c6fc32559679f4a195c114 ........................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:57:37,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:57:37,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:57:37,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:57:37,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:57:37,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:57:37,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:57:37,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:57:37,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:57:37,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:57:37,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:57:37,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:57:37,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:57:37,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:57:37,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:57:37,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:57:37,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:57:37,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:57:37,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:57:37,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:57:37,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:57:37,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:57:37,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:57:37,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:57:37,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:57:37,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:57:37,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:57:37,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:57:37,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:57:37,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:57:37,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:57:37,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:57:37,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:57:37,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:57:37,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:57:37,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:57:37,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:57:37,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:57:37,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:57:37,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:57:37,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:57:37,474 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 23:57:37,510 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:57:37,510 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:57:37,512 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:57:37,512 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:57:37,512 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:57:37,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:57:37,513 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:57:37,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:57:37,513 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:57:37,513 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:57:37,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:57:37,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:57:37,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:57:37,515 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:57:37,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:57:37,515 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:57:37,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:57:37,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:57:37,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:57:37,516 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:57:37,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:57:37,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:57:37,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:57:37,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:57:37,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:57:37,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:57:37,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:57:37,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:57:37,518 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:57:37,518 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:/tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10b157bbf40e5e7436c6fc32559679f4a195c114 [2020-11-29 23:57:37,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:57:37,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:57:37,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:57:37,893 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:57:37,894 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:57:37,895 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092c.c [2020-11-29 23:57:37,975 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/data/2d2f003f7/f7d2d309482549369aea8d8498043aa1/FLAGeb8b8fe69 [2020-11-29 23:57:38,469 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:57:38,470 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/sv-benchmarks/c/float-newlib/double_req_bl_1092c.c [2020-11-29 23:57:38,495 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/data/2d2f003f7/f7d2d309482549369aea8d8498043aa1/FLAGeb8b8fe69 [2020-11-29 23:57:38,808 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/data/2d2f003f7/f7d2d309482549369aea8d8498043aa1 [2020-11-29 23:57:38,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:57:38,812 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:57:38,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:57:38,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:57:38,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:57:38,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:57:38" (1/1) ... [2020-11-29 23:57:38,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2900a95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:38, skipping insertion in model container [2020-11-29 23:57:38,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:57:38" (1/1) ... [2020-11-29 23:57:38,829 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:57:38,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:57:39,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:57:39,070 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:57:39,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:57:39,124 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:57:39,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:39 WrapperNode [2020-11-29 23:57:39,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:57:39,126 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:57:39,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:57:39,126 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:57:39,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:39" (1/1) ... [2020-11-29 23:57:39,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:39" (1/1) ... [2020-11-29 23:57:39,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:57:39,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:57:39,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:57:39,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:57:39,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:39" (1/1) ... [2020-11-29 23:57:39,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:39" (1/1) ... [2020-11-29 23:57:39,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:39" (1/1) ... [2020-11-29 23:57:39,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:39" (1/1) ... [2020-11-29 23:57:39,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:39" (1/1) ... [2020-11-29 23:57:39,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:39" (1/1) ... [2020-11-29 23:57:39,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:39" (1/1) ... [2020-11-29 23:57:39,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:57:39,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:57:39,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:57:39,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:57:39,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/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 23:57:39,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:57:39,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:57:39,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 23:57:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 23:57:39,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 23:57:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:57:39,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:57:39,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 23:57:39,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:57:39,846 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:57:39,846 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 23:57:39,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:57:39 BoogieIcfgContainer [2020-11-29 23:57:39,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:57:39,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:57:39,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:57:39,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:57:39,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:57:38" (1/3) ... [2020-11-29 23:57:39,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a9aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:57:39, skipping insertion in model container [2020-11-29 23:57:39,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:39" (2/3) ... [2020-11-29 23:57:39,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a9aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:57:39, skipping insertion in model container [2020-11-29 23:57:39,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:57:39" (3/3) ... [2020-11-29 23:57:39,856 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092c.c [2020-11-29 23:57:39,867 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:57:39,871 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 23:57:39,891 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 23:57:39,913 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:57:39,913 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:57:39,913 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:57:39,913 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:57:39,913 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:57:39,913 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:57:39,913 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:57:39,914 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:57:39,927 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-29 23:57:39,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 23:57:39,932 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:57:39,933 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:57:39,933 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:57:39,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:39,939 INFO L82 PathProgramCache]: Analyzing trace with hash 658478814, now seen corresponding path program 1 times [2020-11-29 23:57:39,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:39,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642580295] [2020-11-29 23:57:39,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:57:40,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:57:40,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642580295] [2020-11-29 23:57:40,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:57:40,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:57:40,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461080374] [2020-11-29 23:57:40,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 23:57:40,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:57:40,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 23:57:40,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:57:40,097 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-29 23:57:40,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:57:40,139 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2020-11-29 23:57:40,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 23:57:40,141 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-11-29 23:57:40,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:57:40,161 INFO L225 Difference]: With dead ends: 73 [2020-11-29 23:57:40,162 INFO L226 Difference]: Without dead ends: 34 [2020-11-29 23:57:40,164 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 23:57:40,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-29 23:57:40,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-29 23:57:40,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-29 23:57:40,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-11-29 23:57:40,220 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 13 [2020-11-29 23:57:40,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:57:40,220 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-11-29 23:57:40,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 23:57:40,220 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-11-29 23:57:40,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 23:57:40,223 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:57:40,223 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:57:40,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 23:57:40,223 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:57:40,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:40,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1562173395, now seen corresponding path program 1 times [2020-11-29 23:57:40,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:57:40,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857614230] [2020-11-29 23:57:40,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:57:40,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:40,350 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:40,412 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:40,461 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:57:40,461 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 23:57:40,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 23:57:40,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:57:40 BoogieIcfgContainer [2020-11-29 23:57:40,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:57:40,519 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:57:40,520 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:57:40,520 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:57:40,520 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:57:39" (3/4) ... [2020-11-29 23:57:40,524 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 23:57:40,524 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:57:40,529 INFO L168 Benchmark]: Toolchain (without parser) took 1712.99 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 61.4 MB in the beginning and 88.6 MB in the end (delta: -27.3 MB). Peak memory consumption was 801.5 kB. Max. memory is 16.1 GB. [2020-11-29 23:57:40,529 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 96.5 MB. Free memory was 69.3 MB in the beginning and 69.2 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:57:40,531 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.05 ms. Allocated memory is still 96.5 MB. Free memory was 61.1 MB in the beginning and 71.1 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:40,532 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.83 ms. Allocated memory is still 96.5 MB. Free memory was 71.1 MB in the beginning and 69.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:40,532 INFO L168 Benchmark]: Boogie Preprocessor took 61.96 ms. Allocated memory is still 96.5 MB. Free memory was 69.0 MB in the beginning and 67.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:57:40,534 INFO L168 Benchmark]: RCFGBuilder took 594.44 ms. Allocated memory is still 96.5 MB. Free memory was 67.8 MB in the beginning and 45.1 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:40,535 INFO L168 Benchmark]: TraceAbstraction took 670.01 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 44.7 MB in the beginning and 88.6 MB in the end (delta: -43.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:57:40,536 INFO L168 Benchmark]: Witness Printer took 5.10 ms. Allocated memory is still 123.7 MB. Free memory is still 88.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:57:40,546 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 96.5 MB. Free memory was 69.3 MB in the beginning and 69.2 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 310.05 ms. Allocated memory is still 96.5 MB. Free memory was 61.1 MB in the beginning and 71.1 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.83 ms. Allocated memory is still 96.5 MB. Free memory was 71.1 MB in the beginning and 69.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.96 ms. Allocated memory is still 96.5 MB. Free memory was 69.0 MB in the beginning and 67.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 594.44 ms. Allocated memory is still 96.5 MB. Free memory was 67.8 MB in the beginning and 45.1 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 670.01 ms. Allocated memory was 96.5 MB in the beginning and 123.7 MB in the end (delta: 27.3 MB). Free memory was 44.7 MB in the beginning and 88.6 MB in the end (delta: -43.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.10 ms. Allocated memory is still 123.7 MB. Free memory is still 88.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 40, overapproximation of bitwiseOr at line 92, overapproximation of someBinaryArithmeticDOUBLEoperation at line 105, overapproximation of bitwiseAnd at line 91. Possible FailurePath: [L16] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L105] double x = 1.0 / 0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND FALSE !(j0 < 0) [L40] i = (0x000fffff) >> j0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L41] COND TRUE ((i0 & i) | i1) == 0 [L42] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L106] double res = ceil_double(x); [L84] __int32_t hx, lx; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L86] ieee_double_shape_type ew_u; [L87] ew_u.value = (x) [L88] EXPR ew_u.parts.msw [L88] (hx) = ew_u.parts.msw [L89] EXPR ew_u.parts.lsw [L89] (lx) = ew_u.parts.lsw [L91] hx &= 0x7fffffff [L92] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L93] hx = 0x7ff00000 - hx [L94] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L108] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_1092c.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 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: 51 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=38occurred 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, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 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-a4ecdab [2020-11-29 23:57:43,091 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-11-29 23:57:43,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:57:43,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:57:43,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:57:43,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:57:43,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:57:43,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:57:43,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:57:43,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:57:43,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:57:43,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:57:43,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:57:43,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 23:57:43,246 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:57:43,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:57:43,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:57:43,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:57:43,249 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:57:43,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:57:43,250 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:57:43,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:57:43,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:57:43,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:57:43,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:57:43,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:57:43,252 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 23:57:43,252 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 23:57:43,253 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:57:43,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:57:43,253 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:57:43,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:57:43,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:57:43,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:57:43,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:57:43,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:57:43,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:57:43,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:57:43,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:57:43,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:57:43,255 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 23:57:43,256 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 23:57:43,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:57:43,264 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:57:43,264 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 23:57:43,265 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:/tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10b157bbf40e5e7436c6fc32559679f4a195c114 [2020-11-29 23:57:43,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:57:43,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:57:43,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:57:43,751 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:57:43,752 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:57:43,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092c.c [2020-11-29 23:57:43,822 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/data/df22cd2fd/b0945711bd5e46309688fa442f8fef99/FLAG2ebb81492 [2020-11-29 23:57:44,377 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:57:44,377 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/sv-benchmarks/c/float-newlib/double_req_bl_1092c.c [2020-11-29 23:57:44,384 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/data/df22cd2fd/b0945711bd5e46309688fa442f8fef99/FLAG2ebb81492 [2020-11-29 23:57:44,697 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/data/df22cd2fd/b0945711bd5e46309688fa442f8fef99 [2020-11-29 23:57:44,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:57:44,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:57:44,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:57:44,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:57:44,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:57:44,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:57:44" (1/1) ... [2020-11-29 23:57:44,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710feb7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:44, skipping insertion in model container [2020-11-29 23:57:44,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:57:44" (1/1) ... [2020-11-29 23:57:44,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:57:44,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:57:44,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:57:44,903 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:57:44,974 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:57:44,994 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:57:44,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:44 WrapperNode [2020-11-29 23:57:44,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:57:44,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:57:44,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:57:44,996 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:57:45,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:44" (1/1) ... [2020-11-29 23:57:45,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:44" (1/1) ... [2020-11-29 23:57:45,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:57:45,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:57:45,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:57:45,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:57:45,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:44" (1/1) ... [2020-11-29 23:57:45,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:44" (1/1) ... [2020-11-29 23:57:45,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:44" (1/1) ... [2020-11-29 23:57:45,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:44" (1/1) ... [2020-11-29 23:57:45,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:44" (1/1) ... [2020-11-29 23:57:45,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:44" (1/1) ... [2020-11-29 23:57:45,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:44" (1/1) ... [2020-11-29 23:57:45,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:57:45,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:57:45,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:57:45,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:57:45,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/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 23:57:45,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-29 23:57:45,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-29 23:57:45,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 23:57:45,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:57:45,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 23:57:45,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:57:45,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:57:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 23:57:45,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:57:46,774 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:57:46,775 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 23:57:46,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:57:46 BoogieIcfgContainer [2020-11-29 23:57:46,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:57:46,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:57:46,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:57:46,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:57:46,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:57:44" (1/3) ... [2020-11-29 23:57:46,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404d3f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:57:46, skipping insertion in model container [2020-11-29 23:57:46,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:57:44" (2/3) ... [2020-11-29 23:57:46,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@404d3f23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:57:46, skipping insertion in model container [2020-11-29 23:57:46,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:57:46" (3/3) ... [2020-11-29 23:57:46,784 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092c.c [2020-11-29 23:57:46,796 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:57:46,800 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 23:57:46,811 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 23:57:46,832 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:57:46,833 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:57:46,833 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:57:46,833 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:57:46,833 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:57:46,833 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:57:46,833 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:57:46,834 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:57:46,847 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-29 23:57:46,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 23:57:46,852 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:57:46,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:57:46,853 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:57:46,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:46,859 INFO L82 PathProgramCache]: Analyzing trace with hash 658478814, now seen corresponding path program 1 times [2020-11-29 23:57:46,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:57:46,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1138652769] [2020-11-29 23:57:46,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/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 23:57:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:57:47,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 23:57:47,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:57:47,040 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 23:57:47,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:57:47,051 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 23:57:47,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1138652769] [2020-11-29 23:57:47,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:57:47,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 23:57:47,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298341904] [2020-11-29 23:57:47,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 23:57:47,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:57:47,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 23:57:47,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:57:47,083 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-29 23:57:47,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:57:47,113 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2020-11-29 23:57:47,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 23:57:47,119 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-11-29 23:57:47,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:57:47,133 INFO L225 Difference]: With dead ends: 73 [2020-11-29 23:57:47,133 INFO L226 Difference]: Without dead ends: 34 [2020-11-29 23:57:47,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 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 23:57:47,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-29 23:57:47,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-29 23:57:47,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-29 23:57:47,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-11-29 23:57:47,181 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 13 [2020-11-29 23:57:47,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:57:47,181 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-11-29 23:57:47,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 23:57:47,182 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-11-29 23:57:47,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 23:57:47,184 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:57:47,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:57:47,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 23:57:47,404 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:57:47,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:47,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1562173395, now seen corresponding path program 1 times [2020-11-29 23:57:47,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:57:47,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2051286910] [2020-11-29 23:57:47,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/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 23:57:47,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:57:47,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 23:57:47,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:57:47,813 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 23:57:47,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:57:48,018 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 23:57:48,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2051286910] [2020-11-29 23:57:48,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:57:48,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 23:57:48,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318552496] [2020-11-29 23:57:48,021 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 23:57:48,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:57:48,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 23:57:48,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 23:57:48,022 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 8 states. [2020-11-29 23:57:48,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:57:48,343 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2020-11-29 23:57:48,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 23:57:48,345 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-11-29 23:57:48,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:57:48,346 INFO L225 Difference]: With dead ends: 42 [2020-11-29 23:57:48,346 INFO L226 Difference]: Without dead ends: 16 [2020-11-29 23:57:48,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-29 23:57:48,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-29 23:57:48,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-29 23:57:48,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-29 23:57:48,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-11-29 23:57:48,353 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 15 [2020-11-29 23:57:48,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:57:48,353 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-11-29 23:57:48,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 23:57:48,353 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-11-29 23:57:48,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 23:57:48,354 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:57:48,354 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:57:48,572 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 23:57:48,572 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:57:48,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:57:48,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1582346339, now seen corresponding path program 1 times [2020-11-29 23:57:48,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:57:48,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360593284] [2020-11-29 23:57:48,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/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 23:57:48,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:48,907 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:57:49,165 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:57:49,223 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-29 23:57:49,223 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 23:57:49,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 23:57:49,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:57:49 BoogieIcfgContainer [2020-11-29 23:57:49,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:57:49,462 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:57:49,462 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:57:49,462 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:57:49,463 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:57:46" (3/4) ... [2020-11-29 23:57:49,465 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 23:57:49,527 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fb73ab04-f23b-4c44-bae8-7a7eb452cbb2/bin/uautomizer/witness.graphml [2020-11-29 23:57:49,528 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:57:49,530 INFO L168 Benchmark]: Toolchain (without parser) took 4828.19 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 42.8 MB in the beginning and 35.1 MB in the end (delta: 7.7 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:49,531 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 62.9 MB. Free memory is still 44.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:57:49,532 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.89 ms. Allocated memory is still 62.9 MB. Free memory was 42.5 MB in the beginning and 44.2 MB in the end (delta: -1.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:49,533 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.66 ms. Allocated memory is still 62.9 MB. Free memory was 43.9 MB in the beginning and 42.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:49,534 INFO L168 Benchmark]: Boogie Preprocessor took 37.89 ms. Allocated memory is still 62.9 MB. Free memory was 42.3 MB in the beginning and 40.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:49,535 INFO L168 Benchmark]: RCFGBuilder took 1698.68 ms. Allocated memory is still 62.9 MB. Free memory was 40.4 MB in the beginning and 37.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:49,536 INFO L168 Benchmark]: TraceAbstraction took 2683.19 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 36.6 MB in the beginning and 38.1 MB in the end (delta: -1.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:49,536 INFO L168 Benchmark]: Witness Printer took 66.46 ms. Allocated memory is still 81.8 MB. Free memory was 37.7 MB in the beginning and 35.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:57:49,541 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 62.9 MB. Free memory is still 44.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 292.89 ms. Allocated memory is still 62.9 MB. Free memory was 42.5 MB in the beginning and 44.2 MB in the end (delta: -1.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.66 ms. Allocated memory is still 62.9 MB. Free memory was 43.9 MB in the beginning and 42.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.89 ms. Allocated memory is still 62.9 MB. Free memory was 42.3 MB in the beginning and 40.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1698.68 ms. Allocated memory is still 62.9 MB. Free memory was 40.4 MB in the beginning and 37.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2683.19 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 36.6 MB in the beginning and 38.1 MB in the end (delta: -1.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * Witness Printer took 66.46 ms. Allocated memory is still 81.8 MB. Free memory was 37.7 MB in the beginning and 35.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L105] double x = 1.0 / 0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND FALSE !(j0 < 20) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L50] COND TRUE j0 > 51 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L51] COND TRUE j0 == 0x400 [L52] return x + x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L106] double res = ceil_double(x); [L84] __int32_t hx, lx; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L86] ieee_double_shape_type ew_u; [L87] ew_u.value = (x) [L88] EXPR ew_u.parts.msw [L88] (hx) = ew_u.parts.msw [L89] EXPR ew_u.parts.lsw [L89] (lx) = ew_u.parts.lsw [L91] hx &= 0x7fffffff [L92] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L93] hx = 0x7ff00000 - hx [L94] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L108] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_1092c.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 44 SDslu, 6 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 52 ConstructedInterpolants, 5 QuantifiedInterpolants, 2276 SizeOfPredicates, 8 NumberOfNonLiveVariables, 110 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 incorrect! Received shutdown request...