./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc7b929d20445456da87d92c4566355380c50982 ......................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bc7b929d20445456da87d92c4566355380c50982 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 00:10:13,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:10:13,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:10:13,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:10:13,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:10:13,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:10:13,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:10:13,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:10:13,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:10:13,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:10:13,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:10:13,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:10:13,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:10:13,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:10:13,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:10:13,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:10:13,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:10:13,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:10:13,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:10:13,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:10:13,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:10:13,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:10:13,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:10:13,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:10:13,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:10:13,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:10:13,261 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:10:13,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:10:13,262 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:10:13,263 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:10:13,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:10:13,264 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:10:13,265 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:10:13,266 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:10:13,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:10:13,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:10:13,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:10:13,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:10:13,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:10:13,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:10:13,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:10:13,271 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 00:10:13,296 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:10:13,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:10:13,298 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:10:13,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:10:13,298 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:10:13,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:10:13,299 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 00:10:13,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 00:10:13,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 00:10:13,300 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:10:13,300 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 00:10:13,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 00:10:13,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 00:10:13,301 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 00:10:13,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:10:13,301 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:10:13,302 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 00:10:13,302 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:10:13,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:10:13,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 00:10:13,303 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 00:10:13,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:10:13,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:10:13,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 00:10:13,304 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 00:10:13,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 00:10:13,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 00:10:13,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 00:10:13,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f18de8dd-3e35-4e5b-8d36-353043b39e42/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(__VERIFIER_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 -> bc7b929d20445456da87d92c4566355380c50982 [2019-11-20 00:10:13,525 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:10:13,536 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:10:13,540 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:10:13,542 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:10:13,542 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:10:13,543 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2019-11-20 00:10:13,616 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/data/373893096/55dc585e517a47feb0d8efff73f8e5b3/FLAGc1b628e6d [2019-11-20 00:10:14,088 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:10:14,089 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2019-11-20 00:10:14,097 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/data/373893096/55dc585e517a47feb0d8efff73f8e5b3/FLAGc1b628e6d [2019-11-20 00:10:14,438 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/data/373893096/55dc585e517a47feb0d8efff73f8e5b3 [2019-11-20 00:10:14,446 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:10:14,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:10:14,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:10:14,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:10:14,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:10:14,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:10:14" (1/1) ... [2019-11-20 00:10:14,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69e92947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:14, skipping insertion in model container [2019-11-20 00:10:14,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:10:14" (1/1) ... [2019-11-20 00:10:14,470 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:10:14,492 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:10:14,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:10:14,827 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:10:14,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:10:14,939 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:10:14,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:14 WrapperNode [2019-11-20 00:10:14,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:10:14,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:10:14,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:10:14,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:10:14,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:14" (1/1) ... [2019-11-20 00:10:14,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:14" (1/1) ... [2019-11-20 00:10:14,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:10:15,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:10:15,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:10:15,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:10:15,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:14" (1/1) ... [2019-11-20 00:10:15,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:14" (1/1) ... [2019-11-20 00:10:15,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:14" (1/1) ... [2019-11-20 00:10:15,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:14" (1/1) ... [2019-11-20 00:10:15,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:14" (1/1) ... [2019-11-20 00:10:15,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:14" (1/1) ... [2019-11-20 00:10:15,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:14" (1/1) ... [2019-11-20 00:10:15,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:10:15,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:10:15,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:10:15,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:10:15,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/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 [2019-11-20 00:10:15,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 00:10:15,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 00:10:15,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 00:10:15,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 00:10:15,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:10:15,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:10:15,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 00:10:15,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-20 00:10:15,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 00:10:15,620 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:10:15,620 INFO L285 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-20 00:10:15,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:10:15 BoogieIcfgContainer [2019-11-20 00:10:15,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:10:15,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 00:10:15,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 00:10:15,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 00:10:15,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:10:14" (1/3) ... [2019-11-20 00:10:15,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@684e5102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:10:15, skipping insertion in model container [2019-11-20 00:10:15,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:14" (2/3) ... [2019-11-20 00:10:15,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@684e5102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:10:15, skipping insertion in model container [2019-11-20 00:10:15,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:10:15" (3/3) ... [2019-11-20 00:10:15,629 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620a.c [2019-11-20 00:10:15,639 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 00:10:15,646 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 00:10:15,658 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 00:10:15,682 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 00:10:15,683 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 00:10:15,683 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 00:10:15,683 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:10:15,683 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:10:15,683 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 00:10:15,684 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:10:15,684 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 00:10:15,699 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-20 00:10:15,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 00:10:15,705 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:10:15,706 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:10:15,707 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:10:15,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:10:15,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2019-11-20 00:10:15,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:10:15,721 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647712319] [2019-11-20 00:10:15,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:10:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:10:15,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:10:15,863 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647712319] [2019-11-20 00:10:15,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:10:15,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 00:10:15,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231843964] [2019-11-20 00:10:15,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 00:10:15,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 00:10:15,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 00:10:15,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 00:10:15,887 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-20 00:10:15,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:10:15,909 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2019-11-20 00:10:15,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 00:10:15,911 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 00:10:15,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:10:15,920 INFO L225 Difference]: With dead ends: 72 [2019-11-20 00:10:15,921 INFO L226 Difference]: Without dead ends: 34 [2019-11-20 00:10:15,924 INFO L630 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 [2019-11-20 00:10:15,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-20 00:10:15,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-20 00:10:15,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-20 00:10:15,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2019-11-20 00:10:15,964 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2019-11-20 00:10:15,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:10:15,964 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2019-11-20 00:10:15,965 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 00:10:15,965 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2019-11-20 00:10:15,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 00:10:15,966 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:10:15,966 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:10:15,966 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:10:15,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:10:15,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2019-11-20 00:10:15,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 00:10:15,967 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41274598] [2019-11-20 00:10:15,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 00:10:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:10:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 00:10:16,108 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 00:10:16,108 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 00:10:16,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:10:16 BoogieIcfgContainer [2019-11-20 00:10:16,150 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 00:10:16,150 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:10:16,150 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:10:16,151 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:10:16,151 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:10:15" (3/4) ... [2019-11-20 00:10:16,155 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 00:10:16,155 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:10:16,158 INFO L168 Benchmark]: Toolchain (without parser) took 1709.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -127.2 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2019-11-20 00:10:16,159 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:10:16,159 INFO L168 Benchmark]: CACSL2BoogieTranslator took 487.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -187.2 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2019-11-20 00:10:16,160 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:10:16,160 INFO L168 Benchmark]: Boogie Preprocessor took 70.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:10:16,161 INFO L168 Benchmark]: RCFGBuilder took 551.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2019-11-20 00:10:16,162 INFO L168 Benchmark]: TraceAbstraction took 527.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2019-11-20 00:10:16,162 INFO L168 Benchmark]: Witness Printer took 5.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:10:16,166 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 487.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -187.2 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 70.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 551.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 527.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 142]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 141, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 62, overapproximation of someBinaryArithmeticFLOAToperation at line 65. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L137] float x = 0.0f; [L54] float w, s1, s2, z; [L55] __int32_t ix, hx, id; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L58] ieee_float_shape_type gf_u; [L59] gf_u.value = (x) [L60] EXPR gf_u.word [L60] (hx) = gf_u.word [L62] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L63] COND TRUE ix >= 0x50800000 VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L64] COND TRUE ((ix) > 0x7f800000L) [L65] return x + x; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L138] float res = atan_float(x); [L141] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L141] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L142] __VERIFIER_error() VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 48 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 0.1.24-678e011 [2019-11-20 00:10:18,246 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:10:18,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:10:18,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-20 00:10:18,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:10:18,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:10:18,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:10:18,288 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:10:18,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:10:18,290 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:10:18,292 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:10:18,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:10:18,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:10:18,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:10:18,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:10:18,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:10:18,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-20 00:10:18,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:10:18,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:10:18,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:10:18,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:10:18,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:10:18,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:10:18,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:10:18,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:10:18,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:10:18,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:10:18,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:10:18,311 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 00:10:18,330 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:10:18,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:10:18,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:10:18,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:10:18,334 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 00:10:18,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:10:18,335 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 00:10:18,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 00:10:18,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:10:18,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 00:10:18,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 00:10:18,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 00:10:18,336 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 00:10:18,336 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 00:10:18,336 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 00:10:18,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:10:18,337 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:10:18,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 00:10:18,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:10:18,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 00:10:18,337 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 00:10:18,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 00:10:18,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 00:10:18,348 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:10:18,349 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 00:10:18,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 00:10:18,350 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 00:10:18,350 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 00:10:18,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 00:10:18,351 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 00:10:18,351 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_f18de8dd-3e35-4e5b-8d36-353043b39e42/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(__VERIFIER_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 -> bc7b929d20445456da87d92c4566355380c50982 [2019-11-20 00:10:18,626 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:10:18,636 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:10:18,639 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:10:18,641 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:10:18,641 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:10:18,642 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2019-11-20 00:10:18,694 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/data/eb7096867/931ebfd0eade48b5889969df9c3cff96/FLAGd520e1705 [2019-11-20 00:10:19,176 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:10:19,177 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2019-11-20 00:10:19,187 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/data/eb7096867/931ebfd0eade48b5889969df9c3cff96/FLAGd520e1705 [2019-11-20 00:10:19,526 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/data/eb7096867/931ebfd0eade48b5889969df9c3cff96 [2019-11-20 00:10:19,529 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:10:19,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:10:19,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:10:19,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:10:19,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:10:19,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:10:19" (1/1) ... [2019-11-20 00:10:19,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53b95e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:19, skipping insertion in model container [2019-11-20 00:10:19,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:10:19" (1/1) ... [2019-11-20 00:10:19,547 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:10:19,587 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:10:19,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:10:19,884 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:10:19,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:10:20,029 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:10:20,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:20 WrapperNode [2019-11-20 00:10:20,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:10:20,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:10:20,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:10:20,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:10:20,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:20" (1/1) ... [2019-11-20 00:10:20,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:20" (1/1) ... [2019-11-20 00:10:20,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:10:20,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:10:20,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:10:20,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:10:20,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:20" (1/1) ... [2019-11-20 00:10:20,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:20" (1/1) ... [2019-11-20 00:10:20,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:20" (1/1) ... [2019-11-20 00:10:20,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:20" (1/1) ... [2019-11-20 00:10:20,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:20" (1/1) ... [2019-11-20 00:10:20,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:20" (1/1) ... [2019-11-20 00:10:20,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:20" (1/1) ... [2019-11-20 00:10:20,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:10:20,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:10:20,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:10:20,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:10:20,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/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 [2019-11-20 00:10:20,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-11-20 00:10:20,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 00:10:20,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-20 00:10:20,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 00:10:20,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:10:20,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:10:20,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-20 00:10:20,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 00:10:20,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 00:10:31,299 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:10:31,299 INFO L285 CfgBuilder]: Removed 18 assume(true) statements. [2019-11-20 00:10:31,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:10:31 BoogieIcfgContainer [2019-11-20 00:10:31,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:10:31,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 00:10:31,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 00:10:31,305 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 00:10:31,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:10:19" (1/3) ... [2019-11-20 00:10:31,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4e8be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:10:31, skipping insertion in model container [2019-11-20 00:10:31,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:10:20" (2/3) ... [2019-11-20 00:10:31,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a4e8be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:10:31, skipping insertion in model container [2019-11-20 00:10:31,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:10:31" (3/3) ... [2019-11-20 00:10:31,310 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620a.c [2019-11-20 00:10:31,318 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 00:10:31,324 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 00:10:31,334 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 00:10:31,360 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 00:10:31,360 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 00:10:31,361 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 00:10:31,361 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 00:10:31,361 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 00:10:31,361 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 00:10:31,362 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 00:10:31,362 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 00:10:31,378 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-11-20 00:10:31,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 00:10:31,385 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:10:31,386 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:10:31,387 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:10:31,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:10:31,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2019-11-20 00:10:31,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:10:31,407 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [592754479] [2019-11-20 00:10:31,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/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 [2019-11-20 00:10:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:10:31,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 00:10:31,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:10:31,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:10:31,627 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:10:31,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:10:31,632 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [592754479] [2019-11-20 00:10:31,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:10:31,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 00:10:31,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580123008] [2019-11-20 00:10:31,639 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 00:10:31,639 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:10:31,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 00:10:31,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 00:10:31,655 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-11-20 00:10:31,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:10:31,681 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2019-11-20 00:10:31,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 00:10:31,683 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-20 00:10:31,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:10:31,700 INFO L225 Difference]: With dead ends: 72 [2019-11-20 00:10:31,700 INFO L226 Difference]: Without dead ends: 34 [2019-11-20 00:10:31,704 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 00:10:31,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-20 00:10:31,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-20 00:10:31,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-20 00:10:31,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2019-11-20 00:10:31,741 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2019-11-20 00:10:31,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:10:31,742 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2019-11-20 00:10:31,742 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 00:10:31,742 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2019-11-20 00:10:31,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 00:10:31,744 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:10:31,744 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:10:31,953 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 00:10:31,953 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:10:31,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:10:31,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2019-11-20 00:10:31,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:10:31,955 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58016701] [2019-11-20 00:10:31,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/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 [2019-11-20 00:10:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:10:32,175 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 00:10:32,178 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:10:32,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:10:32,265 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:10:32,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:10:32,356 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58016701] [2019-11-20 00:10:32,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:10:32,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 00:10:32,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851463177] [2019-11-20 00:10:32,358 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 00:10:32,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:10:32,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 00:10:32,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-20 00:10:32,359 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2019-11-20 00:10:36,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:10:36,185 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2019-11-20 00:10:36,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 00:10:36,186 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-20 00:10:36,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:10:36,187 INFO L225 Difference]: With dead ends: 57 [2019-11-20 00:10:36,187 INFO L226 Difference]: Without dead ends: 32 [2019-11-20 00:10:36,189 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-20 00:10:36,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-20 00:10:36,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2019-11-20 00:10:36,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-20 00:10:36,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-11-20 00:10:36,193 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 11 [2019-11-20 00:10:36,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:10:36,194 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-11-20 00:10:36,194 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 00:10:36,194 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-11-20 00:10:36,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 00:10:36,195 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:10:36,196 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:10:36,417 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 00:10:36,418 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:10:36,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:10:36,418 INFO L82 PathProgramCache]: Analyzing trace with hash -413875709, now seen corresponding path program 1 times [2019-11-20 00:10:36,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:10:36,419 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494060753] [2019-11-20 00:10:36,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/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 [2019-11-20 00:10:36,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:10:36,645 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 00:10:36,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:10:36,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:10:36,697 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:10:36,699 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 00:10:36,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:10:36,741 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494060753] [2019-11-20 00:10:36,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:10:36,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-20 00:10:36,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102708012] [2019-11-20 00:10:36,742 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 00:10:36,742 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:10:36,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 00:10:36,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-20 00:10:36,743 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2019-11-20 00:10:41,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:10:41,695 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-20 00:10:41,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 00:10:41,696 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-20 00:10:41,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:10:41,697 INFO L225 Difference]: With dead ends: 35 [2019-11-20 00:10:41,697 INFO L226 Difference]: Without dead ends: 32 [2019-11-20 00:10:41,698 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-20 00:10:41,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-20 00:10:41,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2019-11-20 00:10:41,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-20 00:10:41,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-11-20 00:10:41,701 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2019-11-20 00:10:41,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:10:41,701 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-11-20 00:10:41,701 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 00:10:41,701 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-11-20 00:10:41,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 00:10:41,702 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:10:41,702 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:10:41,905 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 00:10:41,905 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:10:41,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:10:41,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1848532469, now seen corresponding path program 1 times [2019-11-20 00:10:41,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:10:41,906 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313678229] [2019-11-20 00:10:41,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/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 [2019-11-20 00:10:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:10:43,125 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 00:10:43,126 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:10:43,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:10:43,159 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:10:43,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:10:43,502 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313678229] [2019-11-20 00:10:43,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:10:43,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-20 00:10:43,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556242838] [2019-11-20 00:10:43,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 00:10:43,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:10:43,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 00:10:43,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 00:10:43,504 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2019-11-20 00:10:43,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:10:43,587 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-11-20 00:10:43,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 00:10:43,592 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-20 00:10:43,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:10:43,593 INFO L225 Difference]: With dead ends: 32 [2019-11-20 00:10:43,593 INFO L226 Difference]: Without dead ends: 18 [2019-11-20 00:10:43,593 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 00:10:43,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-20 00:10:43,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-20 00:10:43,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 00:10:43,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-11-20 00:10:43,596 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2019-11-20 00:10:43,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:10:43,597 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-11-20 00:10:43,597 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 00:10:43,597 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-11-20 00:10:43,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 00:10:43,597 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 00:10:43,597 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 00:10:43,798 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-20 00:10:43,798 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 00:10:43,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:10:43,798 INFO L82 PathProgramCache]: Analyzing trace with hash 712330328, now seen corresponding path program 1 times [2019-11-20 00:10:43,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 00:10:43,799 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [36988810] [2019-11-20 00:10:43,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-20 00:10:43,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:10:43,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-20 00:10:43,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 00:10:44,060 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 00:10:44,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:10:44,116 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 00:10:44,118 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 00:10:44,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 00:10:44,319 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [36988810] [2019-11-20 00:10:44,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 00:10:44,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2019-11-20 00:10:44,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68604408] [2019-11-20 00:10:44,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-20 00:10:44,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 00:10:44,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-20 00:10:44,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-11-20 00:10:44,321 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 14 states. [2019-11-20 00:10:44,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 00:10:44,541 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-11-20 00:10:44,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 00:10:44,541 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2019-11-20 00:10:44,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 00:10:44,542 INFO L225 Difference]: With dead ends: 18 [2019-11-20 00:10:44,542 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 00:10:44,542 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2019-11-20 00:10:44,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 00:10:44,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 00:10:44,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 00:10:44,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 00:10:44,543 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-20 00:10:44,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 00:10:44,544 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 00:10:44,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-20 00:10:44,544 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 00:10:44,544 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 00:10:44,744 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-20 00:10:44,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 00:10:44,927 INFO L440 ceAbstractionStarter]: At program point L126(lines 117 127) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short29| (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (= (_ +zero 8 24) |ULTIMATE.start_atan_float_#res|) (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1))) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) [2019-11-20 00:10:44,927 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 00:10:44,927 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 00:10:44,928 INFO L444 ceAbstractionStarter]: For program point L120-1(lines 120 124) no Hoare annotation was computed. [2019-11-20 00:10:44,928 INFO L440 ceAbstractionStarter]: At program point L120-2(lines 120 124) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short29| (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= (_ +zero 8 24) |ULTIMATE.start_atan_float_#res|) (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) [2019-11-20 00:10:44,928 INFO L444 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2019-11-20 00:10:44,928 INFO L444 ceAbstractionStarter]: For program point L120-3(lines 120 124) no Hoare annotation was computed. [2019-11-20 00:10:44,928 INFO L444 ceAbstractionStarter]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2019-11-20 00:10:44,928 INFO L444 ceAbstractionStarter]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2019-11-20 00:10:44,929 INFO L444 ceAbstractionStarter]: For program point L79(lines 79 95) no Hoare annotation was computed. [2019-11-20 00:10:44,929 INFO L444 ceAbstractionStarter]: For program point L71(lines 71 96) no Hoare annotation was computed. [2019-11-20 00:10:44,929 INFO L444 ceAbstractionStarter]: For program point L63(lines 63 70) no Hoare annotation was computed. [2019-11-20 00:10:44,929 INFO L444 ceAbstractionStarter]: For program point L88(lines 88 94) no Hoare annotation was computed. [2019-11-20 00:10:44,929 INFO L444 ceAbstractionStarter]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2019-11-20 00:10:44,929 INFO L447 ceAbstractionStarter]: At program point L146(lines 129 147) the Hoare annotation is: true [2019-11-20 00:10:44,929 INFO L444 ceAbstractionStarter]: For program point L113(line 113) no Hoare annotation was computed. [2019-11-20 00:10:44,930 INFO L444 ceAbstractionStarter]: For program point L80(lines 80 86) no Hoare annotation was computed. [2019-11-20 00:10:44,930 INFO L444 ceAbstractionStarter]: For program point L113-2(line 113) no Hoare annotation was computed. [2019-11-20 00:10:44,930 INFO L440 ceAbstractionStarter]: At program point L113-3(lines 53 115) the Hoare annotation is: (and (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_atan_float_#res|) (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) [2019-11-20 00:10:44,930 INFO L444 ceAbstractionStarter]: For program point L72(lines 72 75) no Hoare annotation was computed. [2019-11-20 00:10:44,930 INFO L444 ceAbstractionStarter]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2019-11-20 00:10:44,930 INFO L444 ceAbstractionStarter]: For program point L64(lines 64 65) no Hoare annotation was computed. [2019-11-20 00:10:44,931 INFO L444 ceAbstractionStarter]: For program point L73(lines 73 74) no Hoare annotation was computed. [2019-11-20 00:10:44,931 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 00:10:44,931 INFO L444 ceAbstractionStarter]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2019-11-20 00:10:44,931 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2019-11-20 00:10:44,931 INFO L440 ceAbstractionStarter]: At program point L57-2(lines 57 61) the Hoare annotation is: (and (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) [2019-11-20 00:10:44,931 INFO L444 ceAbstractionStarter]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2019-11-20 00:10:44,932 INFO L444 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2019-11-20 00:10:44,932 INFO L440 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: false [2019-11-20 00:10:44,932 INFO L444 ceAbstractionStarter]: For program point L66(lines 66 69) no Hoare annotation was computed. [2019-11-20 00:10:44,932 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 00:10:44,932 INFO L444 ceAbstractionStarter]: For program point L141(line 141) no Hoare annotation was computed. [2019-11-20 00:10:44,932 INFO L444 ceAbstractionStarter]: For program point L141-2(lines 141 144) no Hoare annotation was computed. [2019-11-20 00:10:44,932 INFO L440 ceAbstractionStarter]: At program point L26(lines 14 27) the Hoare annotation is: false [2019-11-20 00:10:44,933 INFO L444 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2019-11-20 00:10:44,933 INFO L444 ceAbstractionStarter]: For program point L109(lines 109 114) no Hoare annotation was computed. [2019-11-20 00:10:44,943 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,944 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,944 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,944 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,947 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,948 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,948 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,948 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,951 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,951 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,951 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,952 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,952 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,953 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,953 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,953 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,954 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,954 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,954 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,955 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,955 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,955 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,956 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,956 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,959 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,959 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,959 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,960 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,961 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,961 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,962 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,962 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:44,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:10:44 BoogieIcfgContainer [2019-11-20 00:10:44,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 00:10:44,974 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:10:44,974 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:10:44,974 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:10:44,975 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:10:31" (3/4) ... [2019-11-20 00:10:44,977 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 00:10:44,987 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-20 00:10:44,988 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-20 00:10:44,988 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 00:10:45,011 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == \result) && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan [2019-11-20 00:10:45,012 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((aux-res == 0.0f && __signbit_float(res) == 0-aux && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == \result) && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan [2019-11-20 00:10:45,012 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((aux-res == 0.0f && __signbit_float(res) == 0-aux && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == \result) && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan [2019-11-20 00:10:45,073 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f18de8dd-3e35-4e5b-8d36-353043b39e42/bin/uautomizer/witness.graphml [2019-11-20 00:10:45,073 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:10:45,075 INFO L168 Benchmark]: Toolchain (without parser) took 25544.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 956.4 MB in the beginning and 907.9 MB in the end (delta: 48.5 MB). Peak memory consumption was 211.5 MB. Max. memory is 11.5 GB. [2019-11-20 00:10:45,076 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:10:45,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 499.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -196.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-11-20 00:10:45,076 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:10:45,077 INFO L168 Benchmark]: Boogie Preprocessor took 63.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-20 00:10:45,077 INFO L168 Benchmark]: RCFGBuilder took 11138.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. [2019-11-20 00:10:45,078 INFO L168 Benchmark]: TraceAbstraction took 13671.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 914.4 MB in the end (delta: 193.3 MB). Peak memory consumption was 193.3 MB. Max. memory is 11.5 GB. [2019-11-20 00:10:45,078 INFO L168 Benchmark]: Witness Printer took 99.90 ms. Allocated memory is still 1.2 GB. Free memory was 914.4 MB in the beginning and 907.9 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-20 00:10:45,080 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 499.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.1 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -196.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 66.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 11138.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13671.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 914.4 MB in the end (delta: 193.3 MB). Peak memory consumption was 193.3 MB. Max. memory is 11.5 GB. * Witness Printer took 99.90 ms. Allocated memory is still 1.2 GB. Free memory was 914.4 MB in the beginning and 907.9 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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.traceabstraction: - PositiveResult [Line: 142]: 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: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 120]: Loop Invariant [2019-11-20 00:10:45,089 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,089 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,089 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,089 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,090 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,090 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,091 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,091 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((aux-res == 0.0f && __signbit_float(res) == 0-aux && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == \result) && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan - InvariantResult [Line: 57]: Loop Invariant [2019-11-20 00:10:45,091 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,092 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,092 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,092 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,092 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,093 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,093 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,093 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~Pluszero~LONGDOUBLE() && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant [2019-11-20 00:10:45,094 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,094 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,094 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,095 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,095 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,095 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,096 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,096 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((x == ~Pluszero~LONGDOUBLE() && ~Pluszero~LONGDOUBLE() == \result) && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan - InvariantResult [Line: 117]: Loop Invariant [2019-11-20 00:10:45,096 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,097 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,097 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,097 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,098 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,098 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,098 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 00:10:45,098 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((((aux-res == 0.0f && __signbit_float(res) == 0-aux && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == \result) && one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Result: SAFE, OverallTime: 13.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 111 SDtfs, 161 SDslu, 202 SDs, 0 SdLazy, 85 SolverSat, 12 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 8.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s 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, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 110 HoareAnnotationTreeSize, 7 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 124 ConstructedInterpolants, 12 QuantifiedInterpolants, 8549 SizeOfPredicates, 27 NumberOfNonLiveVariables, 448 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...