./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0480.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_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c -s /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/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 bd6800513a0c85eb15605681f4c7c21ff95d3a8c ........................................................................................................................................................................................................................................................................................................ 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_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c -s /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/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 bd6800513a0c85eb15605681f4c7c21ff95d3a8c ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:49:29,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:49:29,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:49:29,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:49:29,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:49:29,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:49:29,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:49:29,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:49:29,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:49:29,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:49:29,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:49:29,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:49:29,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:49:29,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:49:29,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:49:29,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:49:29,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:49:29,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:49:29,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:49:29,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:49:29,834 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:49:29,836 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:49:29,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:49:29,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:49:29,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:49:29,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:49:29,853 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:49:29,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:49:29,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:49:29,857 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:49:29,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:49:29,858 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:49:29,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:49:29,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:49:29,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:49:29,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:49:29,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:49:29,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:49:29,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:49:29,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:49:29,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:49:29,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 22:49:29,895 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:49:29,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:49:29,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:49:29,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:49:29,897 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:49:29,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:49:29,897 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:49:29,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:49:29,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:49:29,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:49:29,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:49:29,899 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:49:29,899 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:49:29,899 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:49:29,899 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:49:29,900 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:49:29,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:49:29,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:49:29,900 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:49:29,901 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:49:29,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:49:29,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:49:29,901 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:49:29,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:49:29,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:49:29,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:49:29,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:49:29,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:49:29,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:49:29,909 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_94017ae9-36dc-4893-8075-498cbd79a6f3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd6800513a0c85eb15605681f4c7c21ff95d3a8c [2020-11-29 22:49:30,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:49:30,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:49:30,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:49:30,245 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:49:30,248 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:49:30,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2020-11-29 22:49:30,325 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/data/f72110e15/b0bfa9fb907b482d915deff37f2f4d36/FLAGc1350f629 [2020-11-29 22:49:30,872 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:49:30,872 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2020-11-29 22:49:30,880 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/data/f72110e15/b0bfa9fb907b482d915deff37f2f4d36/FLAGc1350f629 [2020-11-29 22:49:31,208 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/data/f72110e15/b0bfa9fb907b482d915deff37f2f4d36 [2020-11-29 22:49:31,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:49:31,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:49:31,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:49:31,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:49:31,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:49:31,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:49:31" (1/1) ... [2020-11-29 22:49:31,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5722c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:31, skipping insertion in model container [2020-11-29 22:49:31,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:49:31" (1/1) ... [2020-11-29 22:49:31,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:49:31,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:49:31,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:49:31,494 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:49:31,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:49:31,601 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:49:31,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:31 WrapperNode [2020-11-29 22:49:31,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:49:31,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:49:31,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:49:31,605 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:49:31,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:31" (1/1) ... [2020-11-29 22:49:31,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:31" (1/1) ... [2020-11-29 22:49:31,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:49:31,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:49:31,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:49:31,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:49:31,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:31" (1/1) ... [2020-11-29 22:49:31,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:31" (1/1) ... [2020-11-29 22:49:31,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:31" (1/1) ... [2020-11-29 22:49:31,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:31" (1/1) ... [2020-11-29 22:49:31,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:31" (1/1) ... [2020-11-29 22:49:31,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:31" (1/1) ... [2020-11-29 22:49:31,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:31" (1/1) ... [2020-11-29 22:49:31,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:49:31,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:49:31,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:49:31,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:49:31,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/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 22:49:31,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:49:31,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:49:31,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 22:49:31,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 22:49:31,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 22:49:31,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:49:31,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:49:31,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 22:49:31,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 22:49:32,746 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:49:32,746 INFO L298 CfgBuilder]: Removed 34 assume(true) statements. [2020-11-29 22:49:32,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:49:32 BoogieIcfgContainer [2020-11-29 22:49:32,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:49:32,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:49:32,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:49:32,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:49:32,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:49:31" (1/3) ... [2020-11-29 22:49:32,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b28e87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:49:32, skipping insertion in model container [2020-11-29 22:49:32,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:31" (2/3) ... [2020-11-29 22:49:32,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b28e87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:49:32, skipping insertion in model container [2020-11-29 22:49:32,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:49:32" (3/3) ... [2020-11-29 22:49:32,760 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480.c [2020-11-29 22:49:32,770 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:49:32,774 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 22:49:32,790 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 22:49:32,826 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:49:32,826 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:49:32,826 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:49:32,827 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:49:32,827 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:49:32,827 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:49:32,827 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:49:32,827 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:49:32,844 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-11-29 22:49:32,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 22:49:32,850 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:49:32,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:49:32,851 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:49:32,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:49:32,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1036093437, now seen corresponding path program 1 times [2020-11-29 22:49:32,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:49:32,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166343921] [2020-11-29 22:49:32,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:49:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:49:33,033 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 22:49:33,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166343921] [2020-11-29 22:49:33,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:49:33,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:49:33,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073114670] [2020-11-29 22:49:33,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 22:49:33,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:49:33,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 22:49:33,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:49:33,058 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2020-11-29 22:49:33,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:49:33,085 INFO L93 Difference]: Finished difference Result 151 states and 249 transitions. [2020-11-29 22:49:33,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:49:33,086 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 22:49:33,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:49:33,095 INFO L225 Difference]: With dead ends: 151 [2020-11-29 22:49:33,096 INFO L226 Difference]: Without dead ends: 73 [2020-11-29 22:49:33,105 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 22:49:33,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-11-29 22:49:33,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-11-29 22:49:33,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-29 22:49:33,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2020-11-29 22:49:33,145 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 10 [2020-11-29 22:49:33,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:49:33,147 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2020-11-29 22:49:33,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 22:49:33,148 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2020-11-29 22:49:33,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 22:49:33,149 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:49:33,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:49:33,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:49:33,151 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:49:33,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:49:33,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1299213760, now seen corresponding path program 1 times [2020-11-29 22:49:33,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:49:33,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481914185] [2020-11-29 22:49:33,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:49:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:49:33,211 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:49:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:49:33,273 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:49:33,308 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:49:33,308 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 22:49:33,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 22:49:33,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:49:33 BoogieIcfgContainer [2020-11-29 22:49:33,349 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:49:33,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:49:33,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:49:33,350 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:49:33,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:49:32" (3/4) ... [2020-11-29 22:49:33,353 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 22:49:33,353 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:49:33,355 INFO L168 Benchmark]: Toolchain (without parser) took 2141.89 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 64.3 MB in the beginning and 40.6 MB in the end (delta: 23.7 MB). Peak memory consumption was 49.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:49:33,356 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 86.0 MB. Free memory is still 61.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:49:33,357 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.91 ms. Allocated memory is still 86.0 MB. Free memory was 64.1 MB in the beginning and 50.9 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 22:49:33,358 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.46 ms. Allocated memory is still 86.0 MB. Free memory was 50.9 MB in the beginning and 48.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:49:33,358 INFO L168 Benchmark]: Boogie Preprocessor took 84.31 ms. Allocated memory is still 86.0 MB. Free memory was 48.2 MB in the beginning and 45.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:49:33,359 INFO L168 Benchmark]: RCFGBuilder took 980.16 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 45.8 MB in the beginning and 65.8 MB in the end (delta: -20.0 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:49:33,360 INFO L168 Benchmark]: TraceAbstraction took 596.52 ms. Allocated memory is still 111.1 MB. Free memory was 65.2 MB in the beginning and 40.6 MB in the end (delta: 24.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:49:33,361 INFO L168 Benchmark]: Witness Printer took 4.15 ms. Allocated memory is still 111.1 MB. Free memory is still 40.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:49:33,365 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 86.0 MB. Free memory is still 61.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 389.91 ms. Allocated memory is still 86.0 MB. Free memory was 64.1 MB in the beginning and 50.9 MB in the end (delta: 13.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.46 ms. Allocated memory is still 86.0 MB. Free memory was 50.9 MB in the beginning and 48.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 84.31 ms. Allocated memory is still 86.0 MB. Free memory was 48.2 MB in the beginning and 45.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 980.16 ms. Allocated memory was 86.0 MB in the beginning and 111.1 MB in the end (delta: 25.2 MB). Free memory was 45.8 MB in the beginning and 65.8 MB in the end (delta: -20.0 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 596.52 ms. Allocated memory is still 111.1 MB. Free memory was 65.2 MB in the beginning and 40.6 MB in the end (delta: 24.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.15 ms. Allocated memory is still 111.1 MB. Free memory is still 40.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 183, overapproximation of someUnaryDOUBLEoperation at line 86, overapproximation of bitwiseAnd at line 100. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L83-L90] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L179] float x = 1.0f; [L93] float z, p, q, r, w, s, c, df; [L94] __int32_t hx, ix; VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L96] ieee_float_shape_type gf_u; [L97] gf_u.value = (x) [L98] EXPR gf_u.word [L98] (hx) = gf_u.word [L100] ix = hx & 0x7fffffff VAL [one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L101] COND TRUE ix == 0x3f800000 VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L102] COND TRUE hx > 0 [L103] return 0.0; VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L180] float res = __ieee754_acosf(x); [L183] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L183] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L3] __assert_fail("0", "float_req_bl_0480.c", 3, "reach_error") VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 104 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=77occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, 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 22:49:35,822 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-11-29 22:49:35,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:49:35,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:49:35,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:49:35,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:49:35,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:49:35,966 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:49:35,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:49:35,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:49:35,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:49:35,969 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:49:35,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:49:35,971 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 22:49:36,014 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:49:36,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:49:36,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:49:36,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:49:36,018 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:49:36,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:49:36,019 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:49:36,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:49:36,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:49:36,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:49:36,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:49:36,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:49:36,021 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 22:49:36,021 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 22:49:36,021 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:49:36,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:49:36,022 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:49:36,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:49:36,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:49:36,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:49:36,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:49:36,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:49:36,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:49:36,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:49:36,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:49:36,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:49:36,025 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 22:49:36,025 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 22:49:36,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:49:36,025 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:49:36,026 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 22:49:36,026 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_94017ae9-36dc-4893-8075-498cbd79a6f3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd6800513a0c85eb15605681f4c7c21ff95d3a8c [2020-11-29 22:49:36,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:49:36,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:49:36,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:49:36,455 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:49:36,456 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:49:36,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2020-11-29 22:49:36,541 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/data/c6ae9cefb/53e635061eae41f5a3c61d33feeb48c1/FLAG911bc89d3 [2020-11-29 22:49:37,039 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:49:37,053 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/sv-benchmarks/c/float-newlib/float_req_bl_0480.c [2020-11-29 22:49:37,060 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/data/c6ae9cefb/53e635061eae41f5a3c61d33feeb48c1/FLAG911bc89d3 [2020-11-29 22:49:37,382 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/data/c6ae9cefb/53e635061eae41f5a3c61d33feeb48c1 [2020-11-29 22:49:37,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:49:37,405 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:49:37,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:49:37,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:49:37,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:49:37,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:49:37" (1/1) ... [2020-11-29 22:49:37,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6387e1c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:37, skipping insertion in model container [2020-11-29 22:49:37,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:49:37" (1/1) ... [2020-11-29 22:49:37,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:49:37,468 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:49:37,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:49:37,722 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:49:37,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:49:37,823 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:49:37,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:37 WrapperNode [2020-11-29 22:49:37,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:49:37,825 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:49:37,825 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:49:37,825 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:49:37,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:37" (1/1) ... [2020-11-29 22:49:37,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:37" (1/1) ... [2020-11-29 22:49:37,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:49:37,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:49:37,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:49:37,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:49:37,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:37" (1/1) ... [2020-11-29 22:49:37,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:37" (1/1) ... [2020-11-29 22:49:37,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:37" (1/1) ... [2020-11-29 22:49:37,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:37" (1/1) ... [2020-11-29 22:49:37,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:37" (1/1) ... [2020-11-29 22:49:37,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:37" (1/1) ... [2020-11-29 22:49:37,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:37" (1/1) ... [2020-11-29 22:49:37,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:49:37,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:49:37,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:49:37,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:49:37,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/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 22:49:38,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 22:49:38,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:49:38,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-29 22:49:38,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 22:49:38,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:49:38,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:49:38,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-29 22:49:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 22:49:38,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 22:49:49,158 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:49:49,158 INFO L298 CfgBuilder]: Removed 34 assume(true) statements. [2020-11-29 22:49:49,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:49:49 BoogieIcfgContainer [2020-11-29 22:49:49,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:49:49,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:49:49,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:49:49,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:49:49,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:49:37" (1/3) ... [2020-11-29 22:49:49,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108010a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:49:49, skipping insertion in model container [2020-11-29 22:49:49,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:49:37" (2/3) ... [2020-11-29 22:49:49,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108010a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:49:49, skipping insertion in model container [2020-11-29 22:49:49,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:49:49" (3/3) ... [2020-11-29 22:49:49,169 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0480.c [2020-11-29 22:49:49,179 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:49:49,184 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 22:49:49,195 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 22:49:49,219 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:49:49,220 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:49:49,220 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:49:49,220 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:49:49,220 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:49:49,220 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:49:49,221 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:49:49,221 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:49:49,234 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2020-11-29 22:49:49,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 22:49:49,240 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:49:49,240 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:49:49,241 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:49:49,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:49:49,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1036093437, now seen corresponding path program 1 times [2020-11-29 22:49:49,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:49:49,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018395850] [2020-11-29 22:49:49,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/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 22:49:49,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:49:49,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 22:49:49,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:49:49,825 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 22:49:49,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 22:49:49,829 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 22:49:49,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1018395850] [2020-11-29 22:49:49,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:49:49,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 22:49:49,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478585536] [2020-11-29 22:49:49,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 22:49:49,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 22:49:49,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 22:49:49,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:49:49,858 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2020-11-29 22:49:49,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:49:49,900 INFO L93 Difference]: Finished difference Result 151 states and 249 transitions. [2020-11-29 22:49:49,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:49:49,902 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 22:49:49,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:49:49,914 INFO L225 Difference]: With dead ends: 151 [2020-11-29 22:49:49,914 INFO L226 Difference]: Without dead ends: 73 [2020-11-29 22:49:49,918 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 22:49:49,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-11-29 22:49:49,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-11-29 22:49:49,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-11-29 22:49:49,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions. [2020-11-29 22:49:49,972 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 10 [2020-11-29 22:49:49,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:49:49,973 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions. [2020-11-29 22:49:49,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 22:49:49,973 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions. [2020-11-29 22:49:49,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 22:49:49,975 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:49:49,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:49:50,197 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 22:49:50,197 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:49:50,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:49:50,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1299213760, now seen corresponding path program 1 times [2020-11-29 22:49:50,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:49:50,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725431303] [2020-11-29 22:49:50,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/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 22:49:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:49:50,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:49:50,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:49:50,836 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 22:49:50,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 22:49:50,859 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 22:49:50,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725431303] [2020-11-29 22:49:50,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:49:50,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2020-11-29 22:49:50,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885961409] [2020-11-29 22:49:50,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:49:50,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 22:49:50,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:49:50,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:49:50,863 INFO L87 Difference]: Start difference. First operand 73 states and 101 transitions. Second operand 5 states. [2020-11-29 22:49:58,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:49:58,902 INFO L93 Difference]: Finished difference Result 85 states and 112 transitions. [2020-11-29 22:49:59,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 22:49:59,119 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-29 22:49:59,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:49:59,120 INFO L225 Difference]: With dead ends: 85 [2020-11-29 22:49:59,120 INFO L226 Difference]: Without dead ends: 82 [2020-11-29 22:49:59,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:49:59,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-11-29 22:49:59,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 75. [2020-11-29 22:49:59,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-11-29 22:49:59,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 103 transitions. [2020-11-29 22:49:59,134 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 103 transitions. Word has length 11 [2020-11-29 22:49:59,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:49:59,134 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 103 transitions. [2020-11-29 22:49:59,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:49:59,151 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 103 transitions. [2020-11-29 22:49:59,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 22:49:59,152 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:49:59,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:49:59,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 22:49:59,353 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:49:59,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:49:59,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1297366718, now seen corresponding path program 1 times [2020-11-29 22:49:59,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:49:59,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11557031] [2020-11-29 22:49:59,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/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 22:49:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:49:59,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 22:49:59,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:50:00,043 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 22:50:00,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 22:50:00,107 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 22:50:00,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11557031] [2020-11-29 22:50:00,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:50:00,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-29 22:50:00,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728826963] [2020-11-29 22:50:00,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 22:50:00,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 22:50:00,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 22:50:00,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:50:00,109 INFO L87 Difference]: Start difference. First operand 75 states and 103 transitions. Second operand 6 states. [2020-11-29 22:50:03,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:50:03,427 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2020-11-29 22:50:03,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:50:03,549 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-11-29 22:50:03,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:50:03,550 INFO L225 Difference]: With dead ends: 93 [2020-11-29 22:50:03,550 INFO L226 Difference]: Without dead ends: 60 [2020-11-29 22:50:03,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:50:03,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-11-29 22:50:03,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 51. [2020-11-29 22:50:03,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-29 22:50:03,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 66 transitions. [2020-11-29 22:50:03,557 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 66 transitions. Word has length 11 [2020-11-29 22:50:03,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:50:03,558 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 66 transitions. [2020-11-29 22:50:03,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 22:50:03,558 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 66 transitions. [2020-11-29 22:50:03,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 22:50:03,558 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:50:03,558 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:50:03,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 22:50:03,760 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:50:03,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:50:03,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1092345056, now seen corresponding path program 1 times [2020-11-29 22:50:03,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:50:03,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174616883] [2020-11-29 22:50:03,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/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 22:50:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:50:04,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 22:50:04,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:50:04,546 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 22:50:04,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 22:50:04,652 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 22:50:04,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1174616883] [2020-11-29 22:50:04,652 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:50:04,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 22:50:04,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133103636] [2020-11-29 22:50:04,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 22:50:04,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 22:50:04,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 22:50:04,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-29 22:50:04,654 INFO L87 Difference]: Start difference. First operand 51 states and 66 transitions. Second operand 8 states. [2020-11-29 22:50:04,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:50:04,777 INFO L93 Difference]: Finished difference Result 58 states and 72 transitions. [2020-11-29 22:50:04,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 22:50:04,782 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-29 22:50:04,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:50:04,783 INFO L225 Difference]: With dead ends: 58 [2020-11-29 22:50:04,783 INFO L226 Difference]: Without dead ends: 16 [2020-11-29 22:50:04,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-11-29 22:50:04,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-29 22:50:04,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-29 22:50:04,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-29 22:50:04,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-11-29 22:50:04,786 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2020-11-29 22:50:04,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:50:04,788 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-11-29 22:50:04,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 22:50:04,789 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-11-29 22:50:04,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 22:50:04,790 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:50:04,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:50:05,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 22:50:05,011 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:50:05,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:50:05,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1064969237, now seen corresponding path program 1 times [2020-11-29 22:50:05,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 22:50:05,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146983277] [2020-11-29 22:50:05,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/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 22:50:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:50:05,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 22:50:05,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:50:05,733 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 22:50:05,819 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 22:50:05,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 22:50:06,039 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 22:50:06,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146983277] [2020-11-29 22:50:06,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:50:06,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2020-11-29 22:50:06,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781225417] [2020-11-29 22:50:06,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-29 22:50:06,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 22:50:06,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-29 22:50:06,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-11-29 22:50:06,041 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 12 states. [2020-11-29 22:50:06,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:50:06,344 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-11-29 22:50:06,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 22:50:06,345 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 15 [2020-11-29 22:50:06,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:50:06,345 INFO L225 Difference]: With dead ends: 16 [2020-11-29 22:50:06,345 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 22:50:06,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-11-29 22:50:06,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 22:50:06,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 22:50:06,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 22:50:06,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 22:50:06,346 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-29 22:50:06,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:50:06,347 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:50:06,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-29 22:50:06,347 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:50:06,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 22:50:06,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-29 22:50:06,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 22:50:06,834 INFO L270 CegarLoopResult]: At program point L52-2(lines 52 61) the Hoare annotation is: false [2020-11-29 22:50:06,834 INFO L274 CegarLoopResult]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2020-11-29 22:50:06,834 INFO L270 CegarLoopResult]: At program point L52-6(lines 52 61) the Hoare annotation is: false [2020-11-29 22:50:06,834 INFO L274 CegarLoopResult]: For program point L52-7(lines 16 81) no Hoare annotation was computed. [2020-11-29 22:50:06,834 INFO L274 CegarLoopResult]: For program point L102(lines 102 105) no Hoare annotation was computed. [2020-11-29 22:50:06,834 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 22:50:06,834 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 22:50:06,835 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 22:50:06,835 INFO L274 CegarLoopResult]: For program point L37(lines 37 41) no Hoare annotation was computed. [2020-11-29 22:50:06,835 INFO L274 CegarLoopResult]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2020-11-29 22:50:06,835 INFO L274 CegarLoopResult]: For program point L37-3(lines 37 41) no Hoare annotation was computed. [2020-11-29 22:50:06,835 INFO L274 CegarLoopResult]: For program point L37-5(lines 37 41) no Hoare annotation was computed. [2020-11-29 22:50:06,835 INFO L274 CegarLoopResult]: For program point L54(lines 54 58) no Hoare annotation was computed. [2020-11-29 22:50:06,835 INFO L274 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2020-11-29 22:50:06,835 INFO L274 CegarLoopResult]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2020-11-29 22:50:06,835 INFO L270 CegarLoopResult]: At program point L21-2(lines 21 25) the Hoare annotation is: false [2020-11-29 22:50:06,835 INFO L274 CegarLoopResult]: For program point L54-3(lines 54 58) no Hoare annotation was computed. [2020-11-29 22:50:06,836 INFO L274 CegarLoopResult]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2020-11-29 22:50:06,836 INFO L274 CegarLoopResult]: For program point L54-5(lines 54 58) no Hoare annotation was computed. [2020-11-29 22:50:06,836 INFO L274 CegarLoopResult]: For program point L21-5(lines 21 25) no Hoare annotation was computed. [2020-11-29 22:50:06,836 INFO L270 CegarLoopResult]: At program point L21-6(lines 21 25) the Hoare annotation is: false [2020-11-29 22:50:06,836 INFO L274 CegarLoopResult]: For program point L21-7(lines 21 25) no Hoare annotation was computed. [2020-11-29 22:50:06,836 INFO L270 CegarLoopResult]: At program point L170(lines 161 171) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acosf_#res| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start_main_~res~0)) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start___signbit_float_~x)) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) (= (bvadd ULTIMATE.start___ieee754_acosf_~ix~1 (_ bv3229614080 32)) (_ bv0 32)) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) |ULTIMATE.start_main_#t~short24|) [2020-11-29 22:50:06,836 INFO L274 CegarLoopResult]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2020-11-29 22:50:06,837 INFO L270 CegarLoopResult]: At program point L38-3(lines 38 39) the Hoare annotation is: false [2020-11-29 22:50:06,837 INFO L274 CegarLoopResult]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2020-11-29 22:50:06,837 INFO L274 CegarLoopResult]: For program point L38-7(lines 38 39) no Hoare annotation was computed. [2020-11-29 22:50:06,837 INFO L270 CegarLoopResult]: At program point L38-8(lines 38 39) the Hoare annotation is: false [2020-11-29 22:50:06,837 INFO L274 CegarLoopResult]: For program point L38-9(lines 38 39) no Hoare annotation was computed. [2020-11-29 22:50:06,837 INFO L274 CegarLoopResult]: For program point L121(lines 121 158) no Hoare annotation was computed. [2020-11-29 22:50:06,837 INFO L274 CegarLoopResult]: For program point L138-1(lines 138 142) no Hoare annotation was computed. [2020-11-29 22:50:06,837 INFO L270 CegarLoopResult]: At program point L138-2(lines 138 142) the Hoare annotation is: false [2020-11-29 22:50:06,837 INFO L277 CegarLoopResult]: At program point L188(lines 173 189) the Hoare annotation is: true [2020-11-29 22:50:06,838 INFO L274 CegarLoopResult]: For program point L106(lines 106 108) no Hoare annotation was computed. [2020-11-29 22:50:06,838 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 22:50:06,838 INFO L270 CegarLoopResult]: At program point L157(lines 92 159) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acosf_#res| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) (= (bvadd ULTIMATE.start___ieee754_acosf_~ix~1 (_ bv3229614080 32)) (_ bv0 32))) [2020-11-29 22:50:06,838 INFO L274 CegarLoopResult]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2020-11-29 22:50:06,838 INFO L270 CegarLoopResult]: At program point L75-2(lines 75 79) the Hoare annotation is: false [2020-11-29 22:50:06,838 INFO L274 CegarLoopResult]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2020-11-29 22:50:06,838 INFO L274 CegarLoopResult]: For program point L75-5(lines 75 79) no Hoare annotation was computed. [2020-11-29 22:50:06,838 INFO L270 CegarLoopResult]: At program point L75-6(lines 75 79) the Hoare annotation is: false [2020-11-29 22:50:06,838 INFO L274 CegarLoopResult]: For program point L75-7(lines 75 79) no Hoare annotation was computed. [2020-11-29 22:50:06,840 INFO L274 CegarLoopResult]: For program point L109(lines 109 158) no Hoare annotation was computed. [2020-11-29 22:50:06,840 INFO L274 CegarLoopResult]: For program point L143(lines 143 147) no Hoare annotation was computed. [2020-11-29 22:50:06,841 INFO L274 CegarLoopResult]: For program point L110(lines 110 111) no Hoare annotation was computed. [2020-11-29 22:50:06,842 INFO L274 CegarLoopResult]: For program point L143-1(lines 133 158) no Hoare annotation was computed. [2020-11-29 22:50:06,842 INFO L274 CegarLoopResult]: For program point L143-2(lines 143 147) no Hoare annotation was computed. [2020-11-29 22:50:06,842 INFO L274 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-11-29 22:50:06,842 INFO L274 CegarLoopResult]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2020-11-29 22:50:06,842 INFO L274 CegarLoopResult]: For program point L44-3(lines 44 45) no Hoare annotation was computed. [2020-11-29 22:50:06,842 INFO L274 CegarLoopResult]: For program point L44-5(lines 44 45) no Hoare annotation was computed. [2020-11-29 22:50:06,842 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 22:50:06,843 INFO L274 CegarLoopResult]: For program point L28(lines 28 29) no Hoare annotation was computed. [2020-11-29 22:50:06,843 INFO L274 CegarLoopResult]: For program point L28-1(lines 28 29) no Hoare annotation was computed. [2020-11-29 22:50:06,843 INFO L274 CegarLoopResult]: For program point L95-1(lines 95 99) no Hoare annotation was computed. [2020-11-29 22:50:06,843 INFO L270 CegarLoopResult]: At program point L95-2(lines 95 99) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) [2020-11-29 22:50:06,843 INFO L274 CegarLoopResult]: For program point L95-3(lines 95 99) no Hoare annotation was computed. [2020-11-29 22:50:06,843 INFO L274 CegarLoopResult]: For program point L63(lines 63 72) no Hoare annotation was computed. [2020-11-29 22:50:06,843 INFO L274 CegarLoopResult]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2020-11-29 22:50:06,844 INFO L270 CegarLoopResult]: At program point L80(lines 16 81) the Hoare annotation is: false [2020-11-29 22:50:06,844 INFO L270 CegarLoopResult]: At program point L80-1(lines 16 81) the Hoare annotation is: false [2020-11-29 22:50:06,844 INFO L274 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-11-29 22:50:06,844 INFO L274 CegarLoopResult]: For program point L31-1(lines 31 32) no Hoare annotation was computed. [2020-11-29 22:50:06,845 INFO L274 CegarLoopResult]: For program point L164-1(lines 164 168) no Hoare annotation was computed. [2020-11-29 22:50:06,845 INFO L270 CegarLoopResult]: At program point L164-2(lines 164 168) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_acosf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_acosf_~hx~1)) ((_ to_fp 8 24) currentRoundingMode 1.0))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_acosf_#res| ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start_main_~res~0)) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ULTIMATE.start___signbit_float_~x)) (exists ((currentRoundingMode RoundingMode)) (= ((_ to_fp 8 24) currentRoundingMode 1.0) ULTIMATE.start___ieee754_acosf_~x)) (= (bvadd ULTIMATE.start___ieee754_acosf_~ix~1 (_ bv3229614080 32)) (_ bv0 32)) |ULTIMATE.start_main_#t~short24|) [2020-11-29 22:50:06,845 INFO L274 CegarLoopResult]: For program point L65(lines 65 71) no Hoare annotation was computed. [2020-11-29 22:50:06,845 INFO L274 CegarLoopResult]: For program point L164-3(lines 164 168) no Hoare annotation was computed. [2020-11-29 22:50:06,845 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 22:50:06,845 INFO L274 CegarLoopResult]: For program point L65-2(lines 65 71) no Hoare annotation was computed. [2020-11-29 22:50:06,845 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 22:50:06,846 INFO L274 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-11-29 22:50:06,846 INFO L274 CegarLoopResult]: For program point L33-1(lines 33 34) no Hoare annotation was computed. [2020-11-29 22:50:06,846 INFO L274 CegarLoopResult]: For program point L67(lines 67 70) no Hoare annotation was computed. [2020-11-29 22:50:06,846 INFO L274 CegarLoopResult]: For program point L67-3(lines 67 70) no Hoare annotation was computed. [2020-11-29 22:50:06,846 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-11-29 22:50:06,846 INFO L274 CegarLoopResult]: For program point L183-2(lines 183 186) no Hoare annotation was computed. [2020-11-29 22:50:06,846 INFO L274 CegarLoopResult]: For program point L101(lines 101 108) no Hoare annotation was computed. [2020-11-29 22:50:06,859 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,860 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,860 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,866 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,867 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,868 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,868 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,869 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,870 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,870 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,870 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,871 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,871 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,871 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,873 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,874 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,874 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,874 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,874 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,874 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,875 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,875 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,876 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,878 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,879 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,881 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,881 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,881 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,881 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,882 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:06,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:50:06 BoogieIcfgContainer [2020-11-29 22:50:06,891 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:50:06,892 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:50:06,892 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:50:06,892 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:50:06,893 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:49:49" (3/4) ... [2020-11-29 22:50:06,896 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 22:50:06,916 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2020-11-29 22:50:06,916 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-29 22:50:06,917 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:50:06,919 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 22:50:06,945 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x) [2020-11-29 22:50:06,946 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32 [2020-11-29 22:50:06,947 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2020-11-29 22:50:06,948 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2020-11-29 22:50:07,032 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_94017ae9-36dc-4893-8075-498cbd79a6f3/bin/uautomizer/witness.graphml [2020-11-29 22:50:07,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:50:07,035 INFO L168 Benchmark]: Toolchain (without parser) took 29628.61 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 42.3 MB in the beginning and 37.7 MB in the end (delta: 4.6 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. [2020-11-29 22:50:07,035 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 46.1 MB. Free memory is still 29.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:50:07,036 INFO L168 Benchmark]: CACSL2BoogieTranslator took 416.85 ms. Allocated memory is still 56.6 MB. Free memory was 42.1 MB in the beginning and 37.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:50:07,036 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.32 ms. Allocated memory is still 56.6 MB. Free memory was 37.6 MB in the beginning and 34.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:50:07,036 INFO L168 Benchmark]: Boogie Preprocessor took 92.90 ms. Allocated memory is still 56.6 MB. Free memory was 34.9 MB in the beginning and 32.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:50:07,037 INFO L168 Benchmark]: RCFGBuilder took 11182.82 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 32.4 MB in the beginning and 54.3 MB in the end (delta: -21.9 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:50:07,037 INFO L168 Benchmark]: TraceAbstraction took 17728.80 ms. Allocated memory is still 77.6 MB. Free memory was 53.9 MB in the beginning and 45.3 MB in the end (delta: 8.5 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:50:07,038 INFO L168 Benchmark]: Witness Printer took 140.90 ms. Allocated memory is still 77.6 MB. Free memory was 45.3 MB in the beginning and 37.7 MB in the end (delta: 7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:50:07,040 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 46.1 MB. Free memory is still 29.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 416.85 ms. Allocated memory is still 56.6 MB. Free memory was 42.1 MB in the beginning and 37.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.32 ms. Allocated memory is still 56.6 MB. Free memory was 37.6 MB in the beginning and 34.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 92.90 ms. Allocated memory is still 56.6 MB. Free memory was 34.9 MB in the beginning and 32.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 11182.82 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 32.4 MB in the beginning and 54.3 MB in the end (delta: -21.9 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17728.80 ms. Allocated memory is still 77.6 MB. Free memory was 53.9 MB in the beginning and 45.3 MB in the end (delta: 8.5 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. * Witness Printer took 140.90 ms. Allocated memory is still 77.6 MB. Free memory was 45.3 MB in the beginning and 37.7 MB in the end (delta: 7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 92]: Loop Invariant [2020-11-29 22:50:07,051 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,051 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,051 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,052 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,052 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,052 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32 - InvariantResult [Line: 95]: Loop Invariant [2020-11-29 22:50:07,053 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,053 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 161]: Loop Invariant [2020-11-29 22:50:07,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,057 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,058 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,058 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,059 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,059 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,059 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,059 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,059 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 164]: Loop Invariant [2020-11-29 22:50:07,060 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,060 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,060 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,061 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,061 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,061 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,062 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,062 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,062 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 22:50:07,062 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == res)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE()) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0) == x)) && ~bvadd64(ix, 3229614080bv32) == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 17.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 282 SDtfs, 226 SDslu, 275 SDs, 0 SdLazy, 42 SolverSat, 11 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 10.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 16 PreInvPairs, 21 NumberOfFragments, 149 HoareAnnotationTreeSize, 16 FomulaSimplifications, 78 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 106 ConstructedInterpolants, 20 QuantifiedInterpolants, 4012 SizeOfPredicates, 29 NumberOfNonLiveVariables, 311 ConjunctsInSsa, 31 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...