./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 51b19897c11e4f835362356179f819ee4e466264 ................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 51b19897c11e4f835362356179f819ee4e466264 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:15:11,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:15:11,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:15:11,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:15:11,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:15:11,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:15:11,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:15:11,998 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:15:12,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:15:12,003 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:15:12,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:15:12,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:15:12,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:15:12,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:15:12,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:15:12,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:15:12,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:15:12,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:15:12,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:15:12,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:15:12,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:15:12,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:15:12,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:15:12,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:15:12,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:15:12,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:15:12,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:15:12,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:15:12,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:15:12,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:15:12,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:15:12,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:15:12,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:15:12,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:15:12,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:15:12,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:15:12,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:15:12,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:15:12,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:15:12,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:15:12,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:15:12,051 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 23:15:12,078 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:15:12,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:15:12,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:15:12,081 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:15:12,081 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:15:12,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:15:12,082 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:15:12,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:15:12,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:15:12,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:15:12,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:15:12,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:15:12,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:15:12,084 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:15:12,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:15:12,085 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:15:12,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:15:12,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:15:12,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:15:12,086 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:15:12,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:15:12,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:15:12,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:15:12,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:15:12,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:15:12,088 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:15:12,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:15:12,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:15:12,089 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:15:12,089 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51b19897c11e4f835362356179f819ee4e466264 [2020-11-29 23:15:12,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:15:12,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:15:12,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:15:12,403 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:15:12,405 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:15:12,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2020-11-29 23:15:12,471 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/data/9338558b9/6f91cfd6e52c4a4a81ccda4a818d9bb9/FLAG765ccd312 [2020-11-29 23:15:12,972 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:15:12,973 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2020-11-29 23:15:12,987 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/data/9338558b9/6f91cfd6e52c4a4a81ccda4a818d9bb9/FLAG765ccd312 [2020-11-29 23:15:13,370 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/data/9338558b9/6f91cfd6e52c4a4a81ccda4a818d9bb9 [2020-11-29 23:15:13,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:15:13,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:15:13,377 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:15:13,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:15:13,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:15:13,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:15:13" (1/1) ... [2020-11-29 23:15:13,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cef6a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:13, skipping insertion in model container [2020-11-29 23:15:13,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:15:13" (1/1) ... [2020-11-29 23:15:13,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:15:13,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:15:13,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:15:13,622 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:15:13,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:15:13,681 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:15:13,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:13 WrapperNode [2020-11-29 23:15:13,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:15:13,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:15:13,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:15:13,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:15:13,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:13" (1/1) ... [2020-11-29 23:15:13,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:13" (1/1) ... [2020-11-29 23:15:13,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:15:13,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:15:13,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:15:13,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:15:13,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:13" (1/1) ... [2020-11-29 23:15:13,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:13" (1/1) ... [2020-11-29 23:15:13,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:13" (1/1) ... [2020-11-29 23:15:13,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:13" (1/1) ... [2020-11-29 23:15:13,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:13" (1/1) ... [2020-11-29 23:15:13,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:13" (1/1) ... [2020-11-29 23:15:13,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:13" (1/1) ... [2020-11-29 23:15:13,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:15:13,755 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:15:13,755 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:15:13,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:15:13,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:15:13,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:15:13,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:15:13,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 23:15:13,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 23:15:13,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 23:15:13,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:15:13,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:15:13,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 23:15:13,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:15:14,252 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:15:14,252 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 23:15:14,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:15:14 BoogieIcfgContainer [2020-11-29 23:15:14,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:15:14,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:15:14,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:15:14,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:15:14,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:15:13" (1/3) ... [2020-11-29 23:15:14,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@395532a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:15:14, skipping insertion in model container [2020-11-29 23:15:14,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:13" (2/3) ... [2020-11-29 23:15:14,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@395532a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:15:14, skipping insertion in model container [2020-11-29 23:15:14,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:15:14" (3/3) ... [2020-11-29 23:15:14,269 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a.c [2020-11-29 23:15:14,281 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:15:14,286 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 23:15:14,299 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 23:15:14,324 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:15:14,324 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:15:14,324 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:15:14,325 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:15:14,325 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:15:14,325 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:15:14,325 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:15:14,325 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:15:14,339 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-11-29 23:15:14,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 23:15:14,344 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:15:14,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:15:14,346 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:15:14,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:15:14,352 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2020-11-29 23:15:14,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:15:14,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112945869] [2020-11-29 23:15:14,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:15:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:15:14,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:15:14,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112945869] [2020-11-29 23:15:14,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:15:14,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:15:14,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388573947] [2020-11-29 23:15:14,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 23:15:14,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:15:14,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 23:15:14,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:15:14,550 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-11-29 23:15:14,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:15:14,573 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-11-29 23:15:14,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 23:15:14,575 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 23:15:14,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:15:14,588 INFO L225 Difference]: With dead ends: 59 [2020-11-29 23:15:14,589 INFO L226 Difference]: Without dead ends: 27 [2020-11-29 23:15:14,595 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:15:14,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-29 23:15:14,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-29 23:15:14,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-29 23:15:14,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-11-29 23:15:14,643 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2020-11-29 23:15:14,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:15:14,644 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-11-29 23:15:14,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 23:15:14,644 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-11-29 23:15:14,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 23:15:14,645 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:15:14,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:15:14,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 23:15:14,645 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:15:14,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:15:14,646 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2020-11-29 23:15:14,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:15:14,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248584204] [2020-11-29 23:15:14,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:15:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:15:14,764 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:15:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:15:14,797 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:15:14,820 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:15:14,820 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 23:15:14,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 23:15:14,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:15:14 BoogieIcfgContainer [2020-11-29 23:15:14,853 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:15:14,853 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:15:14,854 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:15:14,854 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:15:14,855 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:15:14" (3/4) ... [2020-11-29 23:15:14,858 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 23:15:14,858 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:15:14,862 INFO L168 Benchmark]: Toolchain (without parser) took 1484.45 ms. Allocated memory was 94.4 MB in the beginning and 130.0 MB in the end (delta: 35.7 MB). Free memory was 66.4 MB in the beginning and 60.5 MB in the end (delta: 5.9 MB). Peak memory consumption was 38.7 MB. Max. memory is 16.1 GB. [2020-11-29 23:15:14,862 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory is still 51.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:15:14,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.06 ms. Allocated memory was 94.4 MB in the beginning and 130.0 MB in the end (delta: 35.7 MB). Free memory was 66.4 MB in the beginning and 106.2 MB in the end (delta: -39.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:15:14,865 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.00 ms. Allocated memory is still 130.0 MB. Free memory was 106.2 MB in the beginning and 104.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:15:14,866 INFO L168 Benchmark]: Boogie Preprocessor took 30.74 ms. Allocated memory is still 130.0 MB. Free memory was 104.1 MB in the beginning and 102.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:15:14,867 INFO L168 Benchmark]: RCFGBuilder took 499.84 ms. Allocated memory is still 130.0 MB. Free memory was 102.9 MB in the beginning and 84.1 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:15:14,868 INFO L168 Benchmark]: TraceAbstraction took 591.73 ms. Allocated memory is still 130.0 MB. Free memory was 83.5 MB in the beginning and 60.5 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:15:14,869 INFO L168 Benchmark]: Witness Printer took 4.97 ms. Allocated memory is still 130.0 MB. Free memory is still 60.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:15:14,878 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory is still 51.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 306.06 ms. Allocated memory was 94.4 MB in the beginning and 130.0 MB in the end (delta: 35.7 MB). Free memory was 66.4 MB in the beginning and 106.2 MB in the end (delta: -39.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.00 ms. Allocated memory is still 130.0 MB. Free memory was 106.2 MB in the beginning and 104.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.74 ms. Allocated memory is still 130.0 MB. Free memory was 104.1 MB in the beginning and 102.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 499.84 ms. Allocated memory is still 130.0 MB. Free memory was 102.9 MB in the beginning and 84.1 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 591.73 ms. Allocated memory is still 130.0 MB. Free memory was 83.5 MB in the beginning and 60.5 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.97 ms. Allocated memory is still 130.0 MB. Free memory is still 60.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 82, overapproximation of someUnaryFLOAToperation at line 78, overapproximation of bitwiseAnd at line 23. Possible FailurePath: [L13] static const float huge_ceil = 1.0e30; VAL [huge_ceil=1000000000000000000000000000000] [L78] float x = -0.0f; [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [huge_ceil=1000000000000000000000000000000] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [huge_ceil=1000000000000000000000000000000] [L25] COND FALSE !(j0 < 23) VAL [huge_ceil=1000000000000000000000000000000] [L45] COND FALSE !(!((ix) < 0x7f800000L)) [L48] return x; VAL [huge_ceil=1000000000000000000000000000000] [L79] float res = ceil_float(x); [L82] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_ceil=1000000000000000000000000000000] [L82] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L3] __assert_fail("0", "float_req_bl_1092a.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 39 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=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:15:17,598 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:15:17,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:15:17,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:15:17,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:15:17,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:15:17,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:15:17,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:15:17,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:15:17,675 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:15:17,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:15:17,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:15:17,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:15:17,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:15:17,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:15:17,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:15:17,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:15:17,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:15:17,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:15:17,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:15:17,712 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:15:17,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:15:17,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:15:17,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:15:17,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:15:17,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:15:17,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:15:17,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:15:17,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:15:17,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:15:17,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:15:17,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:15:17,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:15:17,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:15:17,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:15:17,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:15:17,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:15:17,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:15:17,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:15:17,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:15:17,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:15:17,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 23:15:17,757 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:15:17,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:15:17,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:15:17,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:15:17,759 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:15:17,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:15:17,760 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:15:17,760 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:15:17,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:15:17,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:15:17,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:15:17,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:15:17,761 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 23:15:17,761 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 23:15:17,761 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:15:17,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:15:17,762 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:15:17,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:15:17,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:15:17,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:15:17,763 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:15:17,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:15:17,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:15:17,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:15:17,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:15:17,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:15:17,764 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 23:15:17,764 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 23:15:17,764 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:15:17,765 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:15:17,765 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 23:15:17,765 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51b19897c11e4f835362356179f819ee4e466264 [2020-11-29 23:15:18,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:15:18,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:15:18,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:15:18,218 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:15:18,220 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:15:18,221 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2020-11-29 23:15:18,308 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/data/5f84943b2/bfddf625c1df41669b77eb9534b2e306/FLAG055dc715a [2020-11-29 23:15:18,811 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:15:18,816 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/sv-benchmarks/c/float-newlib/float_req_bl_1092a.c [2020-11-29 23:15:18,826 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/data/5f84943b2/bfddf625c1df41669b77eb9534b2e306/FLAG055dc715a [2020-11-29 23:15:19,146 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/data/5f84943b2/bfddf625c1df41669b77eb9534b2e306 [2020-11-29 23:15:19,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:15:19,152 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:15:19,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:15:19,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:15:19,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:15:19,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:15:19" (1/1) ... [2020-11-29 23:15:19,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b50de65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:19, skipping insertion in model container [2020-11-29 23:15:19,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:15:19" (1/1) ... [2020-11-29 23:15:19,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:15:19,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:15:19,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:15:19,468 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:15:19,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:15:19,511 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:15:19,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:19 WrapperNode [2020-11-29 23:15:19,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:15:19,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:15:19,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:15:19,514 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:15:19,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:19" (1/1) ... [2020-11-29 23:15:19,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:19" (1/1) ... [2020-11-29 23:15:19,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:15:19,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:15:19,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:15:19,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:15:19,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:19" (1/1) ... [2020-11-29 23:15:19,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:19" (1/1) ... [2020-11-29 23:15:19,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:19" (1/1) ... [2020-11-29 23:15:19,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:19" (1/1) ... [2020-11-29 23:15:19,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:19" (1/1) ... [2020-11-29 23:15:19,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:19" (1/1) ... [2020-11-29 23:15:19,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:19" (1/1) ... [2020-11-29 23:15:19,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:15:19,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:15:19,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:15:19,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:15:19,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:15:19,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 23:15:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:15:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-29 23:15:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 23:15:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:15:19,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:15:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-29 23:15:19,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 23:15:19,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:15:20,502 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:15:20,503 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 23:15:20,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:15:20 BoogieIcfgContainer [2020-11-29 23:15:20,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:15:20,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:15:20,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:15:20,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:15:20,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:15:19" (1/3) ... [2020-11-29 23:15:20,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab826ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:15:20, skipping insertion in model container [2020-11-29 23:15:20,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:15:19" (2/3) ... [2020-11-29 23:15:20,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab826ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:15:20, skipping insertion in model container [2020-11-29 23:15:20,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:15:20" (3/3) ... [2020-11-29 23:15:20,514 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a.c [2020-11-29 23:15:20,527 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:15:20,532 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 23:15:20,544 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 23:15:20,571 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:15:20,571 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:15:20,571 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:15:20,572 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:15:20,572 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:15:20,572 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:15:20,572 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:15:20,573 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:15:20,589 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-11-29 23:15:20,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 23:15:20,596 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:15:20,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:15:20,597 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:15:20,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:15:20,605 INFO L82 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2020-11-29 23:15:20,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:15:20,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000417995] [2020-11-29 23:15:20,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 23:15:20,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:15:20,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 23:15:20,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:15:20,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:15:20,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:15:20,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:15:20,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000417995] [2020-11-29 23:15:20,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:15:20,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 23:15:20,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826223532] [2020-11-29 23:15:20,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 23:15:20,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:15:20,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 23:15:20,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:15:20,909 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2020-11-29 23:15:20,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:15:20,934 INFO L93 Difference]: Finished difference Result 59 states and 91 transitions. [2020-11-29 23:15:20,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 23:15:20,935 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 23:15:20,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:15:20,946 INFO L225 Difference]: With dead ends: 59 [2020-11-29 23:15:20,946 INFO L226 Difference]: Without dead ends: 27 [2020-11-29 23:15:20,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:15:20,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-29 23:15:20,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-29 23:15:20,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-29 23:15:20,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2020-11-29 23:15:20,989 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2020-11-29 23:15:20,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:15:20,990 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2020-11-29 23:15:20,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 23:15:20,991 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2020-11-29 23:15:20,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 23:15:20,992 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:15:20,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:15:21,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 23:15:21,217 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:15:21,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:15:21,218 INFO L82 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2020-11-29 23:15:21,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:15:21,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395974223] [2020-11-29 23:15:21,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 23:15:21,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:15:21,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 23:15:21,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:15:21,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:15:21,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:15:21,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:15:21,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395974223] [2020-11-29 23:15:21,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:15:21,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 23:15:21,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005482208] [2020-11-29 23:15:21,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 23:15:21,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:15:21,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 23:15:21,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 23:15:21,581 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 8 states. [2020-11-29 23:15:21,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:15:21,810 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2020-11-29 23:15:21,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 23:15:21,811 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-29 23:15:21,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:15:21,813 INFO L225 Difference]: With dead ends: 39 [2020-11-29 23:15:21,813 INFO L226 Difference]: Without dead ends: 21 [2020-11-29 23:15:21,815 INFO L677 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 [2020-11-29 23:15:21,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-29 23:15:21,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-29 23:15:21,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-29 23:15:21,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-11-29 23:15:21,823 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2020-11-29 23:15:21,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:15:21,824 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-29 23:15:21,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 23:15:21,825 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-11-29 23:15:21,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 23:15:21,829 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:15:21,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:15:22,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 23:15:22,044 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:15:22,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:15:22,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2020-11-29 23:15:22,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:15:22,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836739642] [2020-11-29 23:15:22,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 23:15:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:15:22,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 23:15:22,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:15:22,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:15:22,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:15:22,582 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-29 23:15:22,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:15:22,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836739642] [2020-11-29 23:15:22,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:15:22,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-29 23:15:22,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634739098] [2020-11-29 23:15:22,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 23:15:22,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:15:22,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 23:15:22,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:15:22,793 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 6 states. [2020-11-29 23:15:23,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:15:23,052 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2020-11-29 23:15:23,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:15:23,058 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-29 23:15:23,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:15:23,059 INFO L225 Difference]: With dead ends: 33 [2020-11-29 23:15:23,059 INFO L226 Difference]: Without dead ends: 21 [2020-11-29 23:15:23,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 23:15:23,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-29 23:15:23,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-29 23:15:23,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-29 23:15:23,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-11-29 23:15:23,069 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 15 [2020-11-29 23:15:23,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:15:23,069 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-11-29 23:15:23,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 23:15:23,070 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-11-29 23:15:23,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 23:15:23,070 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:15:23,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:15:23,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 23:15:23,287 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:15:23,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:15:23,288 INFO L82 PathProgramCache]: Analyzing trace with hash 879764433, now seen corresponding path program 1 times [2020-11-29 23:15:23,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:15:23,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842802387] [2020-11-29 23:15:23,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/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 [2020-11-29 23:15:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:15:23,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 23:15:23,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:15:23,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:15:23,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:15:23,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:15:23,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842802387] [2020-11-29 23:15:23,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:15:23,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-11-29 23:15:23,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963344670] [2020-11-29 23:15:23,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 23:15:23,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:15:23,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 23:15:23,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-29 23:15:23,533 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 9 states. [2020-11-29 23:15:23,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:15:23,770 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-11-29 23:15:23,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 23:15:23,771 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2020-11-29 23:15:23,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:15:23,772 INFO L225 Difference]: With dead ends: 24 [2020-11-29 23:15:23,772 INFO L226 Difference]: Without dead ends: 21 [2020-11-29 23:15:23,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-11-29 23:15:23,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-29 23:15:23,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-29 23:15:23,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-29 23:15:23,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2020-11-29 23:15:23,777 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 16 [2020-11-29 23:15:23,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:15:23,777 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2020-11-29 23:15:23,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 23:15:23,778 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2020-11-29 23:15:23,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-29 23:15:23,780 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:15:23,780 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:15:23,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 23:15:23,990 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:15:23,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:15:23,991 INFO L82 PathProgramCache]: Analyzing trace with hash -733783834, now seen corresponding path program 1 times [2020-11-29 23:15:23,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:15:23,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600669128] [2020-11-29 23:15:23,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/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 [2020-11-29 23:15:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:15:24,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-29 23:15:24,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:15:24,258 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 23:15:24,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:15:24,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:15:24,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:15:24,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600669128] [2020-11-29 23:15:24,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:15:24,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2020-11-29 23:15:24,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467174126] [2020-11-29 23:15:24,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-29 23:15:24,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:15:24,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-29 23:15:24,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-11-29 23:15:24,730 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 16 states. [2020-11-29 23:15:25,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:15:25,230 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2020-11-29 23:15:25,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 23:15:25,231 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 20 [2020-11-29 23:15:25,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:15:25,231 INFO L225 Difference]: With dead ends: 21 [2020-11-29 23:15:25,232 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 23:15:25,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2020-11-29 23:15:25,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 23:15:25,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 23:15:25,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 23:15:25,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 23:15:25,233 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-29 23:15:25,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:15:25,234 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:15:25,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-29 23:15:25,234 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:15:25,234 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 23:15:25,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-29 23:15:25,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 23:15:25,842 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-11-29 23:15:25,844 INFO L274 CegarLoopResult]: For program point L27(lines 27 33) no Hoare annotation was computed. [2020-11-29 23:15:25,844 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-29 23:15:25,844 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 23:15:25,845 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 23:15:25,845 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 23:15:25,845 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 23:15:25,845 INFO L274 CegarLoopResult]: For program point L28(lines 28 32) no Hoare annotation was computed. [2020-11-29 23:15:25,845 INFO L274 CegarLoopResult]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2020-11-29 23:15:25,845 INFO L270 CegarLoopResult]: At program point L61-2(lines 61 65) the Hoare annotation is: (let ((.cse0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (and (= .cse0 |ULTIMATE.start_ceil_float_#res|) (= ULTIMATE.start_ceil_float_~x .cse0) (= currentRoundingMode roundNearestTiesToEven) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))) (= .cse0 ULTIMATE.start___signbit_float_~x) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))))) |ULTIMATE.start_main_#t~short15| (= .cse0 ULTIMATE.start_main_~res~0))) [2020-11-29 23:15:25,845 INFO L274 CegarLoopResult]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2020-11-29 23:15:25,845 INFO L274 CegarLoopResult]: For program point L45(lines 45 48) no Hoare annotation was computed. [2020-11-29 23:15:25,846 INFO L277 CegarLoopResult]: At program point L87(lines 70 88) the Hoare annotation is: true [2020-11-29 23:15:25,846 INFO L274 CegarLoopResult]: For program point L38(lines 38 42) no Hoare annotation was computed. [2020-11-29 23:15:25,846 INFO L274 CegarLoopResult]: For program point L30(lines 30 32) no Hoare annotation was computed. [2020-11-29 23:15:25,846 INFO L270 CegarLoopResult]: At program point L55(lines 15 56) the Hoare annotation is: (let ((.cse0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (and (= .cse0 |ULTIMATE.start_ceil_float_#res|) (= ULTIMATE.start_ceil_float_~x .cse0) (= currentRoundingMode roundNearestTiesToEven) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))))))) [2020-11-29 23:15:25,846 INFO L274 CegarLoopResult]: For program point L39(lines 39 40) no Hoare annotation was computed. [2020-11-29 23:15:25,846 INFO L274 CegarLoopResult]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2020-11-29 23:15:25,846 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 23:15:25,846 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 23:15:25,847 INFO L274 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-11-29 23:15:25,847 INFO L274 CegarLoopResult]: For program point L82-2(lines 82 85) no Hoare annotation was computed. [2020-11-29 23:15:25,847 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 23:15:25,847 INFO L274 CegarLoopResult]: For program point L25(lines 25 49) no Hoare annotation was computed. [2020-11-29 23:15:25,847 INFO L274 CegarLoopResult]: For program point L50(lines 50 54) no Hoare annotation was computed. [2020-11-29 23:15:25,847 INFO L274 CegarLoopResult]: For program point L50-1(lines 15 56) no Hoare annotation was computed. [2020-11-29 23:15:25,847 INFO L274 CegarLoopResult]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2020-11-29 23:15:25,847 INFO L270 CegarLoopResult]: At program point L67(lines 58 68) the Hoare annotation is: (let ((.cse0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (and (= .cse0 |ULTIMATE.start_ceil_float_#res|) (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= ULTIMATE.start_ceil_float_~x .cse0) (= currentRoundingMode roundNearestTiesToEven) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0))) (= .cse0 ULTIMATE.start___signbit_float_~x) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32))) (and (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.neg (_ +zero 8 24))))) |ULTIMATE.start_main_#t~short15| (= .cse0 ULTIMATE.start_main_~res~0))) [2020-11-29 23:15:25,847 INFO L274 CegarLoopResult]: For program point L26(lines 26 43) no Hoare annotation was computed. [2020-11-29 23:15:25,848 INFO L274 CegarLoopResult]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2020-11-29 23:15:25,848 INFO L270 CegarLoopResult]: At program point L18-2(lines 18 22) the Hoare annotation is: (and (= ULTIMATE.start_ceil_float_~x (fp (_ bv1 1) (_ bv0 8) (_ bv0 23))) (= currentRoundingMode roundNearestTiesToEven) (= ~huge_ceil~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-11-29 23:15:25,848 INFO L274 CegarLoopResult]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2020-11-29 23:15:25,857 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:15:25,859 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,859 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,859 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,862 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:15:25,862 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,862 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,862 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,864 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:15:25,867 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,868 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,868 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,868 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,869 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,870 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,870 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,871 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:15:25,871 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,871 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,871 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,872 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,875 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:15:25,876 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,876 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,876 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,876 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,877 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,877 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,877 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,882 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:15:25,882 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,882 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,882 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,882 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,886 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,895 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:15:25,903 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,903 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,903 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,904 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,904 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,904 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,905 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,906 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:15:25,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,906 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:25,907 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,907 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,907 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:25,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:15:25 BoogieIcfgContainer [2020-11-29 23:15:25,909 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:15:25,910 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:15:25,910 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:15:25,910 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:15:25,911 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:15:20" (3/4) ... [2020-11-29 23:15:25,914 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 23:15:25,929 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-29 23:15:25,930 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 23:15:25,930 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:15:25,930 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:15:25,959 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) [2020-11-29 23:15:25,961 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res [2020-11-29 23:15:25,961 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && ~bvadd64(\result, 4294967295bv32) == 0bv32) && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res [2020-11-29 23:15:25,985 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fb78498b-a4ad-4e6b-9b5a-047a2bdc2963/bin/uautomizer/witness.graphml [2020-11-29 23:15:25,986 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:15:25,987 INFO L168 Benchmark]: Toolchain (without parser) took 6834.29 ms. Allocated memory was 79.7 MB in the beginning and 98.6 MB in the end (delta: 18.9 MB). Free memory was 46.2 MB in the beginning and 67.2 MB in the end (delta: -21.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:15:25,988 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 79.7 MB. Free memory was 62.6 MB in the beginning and 62.5 MB in the end (delta: 65.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:15:25,988 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.88 ms. Allocated memory is still 79.7 MB. Free memory was 46.0 MB in the beginning and 56.0 MB in the end (delta: -10.0 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:15:25,989 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.82 ms. Allocated memory is still 79.7 MB. Free memory was 55.8 MB in the beginning and 63.9 MB in the end (delta: -8.1 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:15:25,989 INFO L168 Benchmark]: Boogie Preprocessor took 34.94 ms. Allocated memory is still 79.7 MB. Free memory was 63.9 MB in the beginning and 62.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:15:25,990 INFO L168 Benchmark]: RCFGBuilder took 908.22 ms. Allocated memory is still 79.7 MB. Free memory was 62.2 MB in the beginning and 43.0 MB in the end (delta: 19.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:15:25,990 INFO L168 Benchmark]: TraceAbstraction took 5403.05 ms. Allocated memory was 79.7 MB in the beginning and 98.6 MB in the end (delta: 18.9 MB). Free memory was 42.6 MB in the beginning and 71.4 MB in the end (delta: -28.8 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:15:25,991 INFO L168 Benchmark]: Witness Printer took 75.73 ms. Allocated memory is still 98.6 MB. Free memory was 71.1 MB in the beginning and 67.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:15:25,994 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 79.7 MB. Free memory was 62.6 MB in the beginning and 62.5 MB in the end (delta: 65.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 357.88 ms. Allocated memory is still 79.7 MB. Free memory was 46.0 MB in the beginning and 56.0 MB in the end (delta: -10.0 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.82 ms. Allocated memory is still 79.7 MB. Free memory was 55.8 MB in the beginning and 63.9 MB in the end (delta: -8.1 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.94 ms. Allocated memory is still 79.7 MB. Free memory was 63.9 MB in the beginning and 62.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 908.22 ms. Allocated memory is still 79.7 MB. Free memory was 62.2 MB in the beginning and 43.0 MB in the end (delta: 19.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5403.05 ms. Allocated memory was 79.7 MB in the beginning and 98.6 MB in the end (delta: 18.9 MB). Free memory was 42.6 MB in the beginning and 71.4 MB in the end (delta: -28.8 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. * Witness Printer took 75.73 ms. Allocated memory is still 98.6 MB. Free memory was 71.1 MB in the beginning and 67.2 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant [2020-11-29 23:15:26,008 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:15:26,008 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:26,008 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:26,009 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:26,009 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:15:26,009 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:26,009 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:26,009 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 61]: Loop Invariant [2020-11-29 23:15:26,010 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:15:26,010 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,010 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,011 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,011 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,011 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:26,011 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:26,011 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:26,012 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:15:26,012 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,012 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,012 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,013 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,013 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:26,013 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:26,013 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res - InvariantResult [Line: 15]: Loop Invariant [2020-11-29 23:15:26,014 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:15:26,014 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,014 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,015 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,015 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,015 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:26,015 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:26,015 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:26,016 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:15:26,016 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,016 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,016 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,017 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,017 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:26,017 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:26,017 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 58]: Loop Invariant [2020-11-29 23:15:26,018 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:15:26,018 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,019 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,019 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,019 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,019 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:26,020 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:26,020 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:26,020 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:15:26,020 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,021 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,021 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,021 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_ceil_float_~i0~0,QUANTIFIED] [2020-11-29 23:15:26,021 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:26,022 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:15:26,022 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((((((((~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == \result && ~bvadd64(\result, 4294967295bv32) == 0bv32) && x == ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == x) && huge_ceil == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && (\exists ULTIMATE.start_ceil_float_~i0~0 : bv32 :: ~bvadd64(~bvlshr32(~bvand32(2147483647bv32, ULTIMATE.start_ceil_float_~i0~0), 23bv32), 4294967169bv32) == j0 && ~fp~LONGDOUBLE(ULTIMATE.start_ceil_float_~i0~0[31:31], ULTIMATE.start_ceil_float_~i0~0[30:23], ULTIMATE.start_ceil_float_~i0~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp~LONGDOUBLE(1bv1, 0bv8, 0bv23) == res - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 90 SDtfs, 197 SDslu, 80 SDs, 0 SdLazy, 113 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 223 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 31 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 134 ConstructedInterpolants, 8 QuantifiedInterpolants, 8650 SizeOfPredicates, 26 NumberOfNonLiveVariables, 272 ConjunctsInSsa, 35 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...