./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.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_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/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 aad197397f99c266313f2caa0ca0a263e036c988 ..................................................................................................................................................................................................................................................................................................... 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_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/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 aad197397f99c266313f2caa0ca0a263e036c988 ................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:30:19,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:30:19,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:30:19,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:30:19,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:30:19,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:30:19,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:30:19,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:30:19,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:30:19,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:30:19,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:30:19,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:30:19,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:30:19,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:30:19,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:30:19,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:30:19,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:30:19,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:30:19,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:30:19,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:30:19,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:30:19,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:30:19,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:30:19,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:30:19,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:30:19,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:30:19,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:30:19,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:30:19,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:30:19,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:30:19,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:30:19,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:30:19,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:30:19,212 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:30:19,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:30:19,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:30:19,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:30:19,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:30:19,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:30:19,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:30:19,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:30:19,222 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:30:19,274 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:30:19,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:30:19,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:30:19,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:30:19,277 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:30:19,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:30:19,278 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:30:19,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:30:19,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:30:19,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:30:19,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:30:19,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:30:19,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:30:19,281 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:30:19,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:30:19,282 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:30:19,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:30:19,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:30:19,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:30:19,283 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:30:19,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:30:19,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:30:19,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:30:19,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:30:19,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:30:19,285 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:30:19,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:30:19,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:30:19,286 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:30:19,286 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_f6db609b-a360-46f1-9035-c45f8fda77bc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad197397f99c266313f2caa0ca0a263e036c988 [2020-11-30 00:30:19,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:30:19,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:30:19,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:30:19,655 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:30:19,656 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:30:19,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2020-11-30 00:30:19,740 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/data/7a4713610/a2ede1e1fa694d729ca25fb16f56c134/FLAG75de36da1 [2020-11-30 00:30:20,311 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:30:20,312 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2020-11-30 00:30:20,330 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/data/7a4713610/a2ede1e1fa694d729ca25fb16f56c134/FLAG75de36da1 [2020-11-30 00:30:20,601 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/data/7a4713610/a2ede1e1fa694d729ca25fb16f56c134 [2020-11-30 00:30:20,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:30:20,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:30:20,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:30:20,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:30:20,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:30:20,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:30:20" (1/1) ... [2020-11-30 00:30:20,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db1b422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:20, skipping insertion in model container [2020-11-30 00:30:20,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:30:20" (1/1) ... [2020-11-30 00:30:20,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:30:20,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:30:20,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:30:20,934 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:30:20,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:30:20,989 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:30:20,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:20 WrapperNode [2020-11-30 00:30:20,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:30:20,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:30:20,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:30:20,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:30:21,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:20" (1/1) ... [2020-11-30 00:30:21,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:20" (1/1) ... [2020-11-30 00:30:21,036 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:30:21,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:30:21,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:30:21,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:30:21,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:20" (1/1) ... [2020-11-30 00:30:21,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:20" (1/1) ... [2020-11-30 00:30:21,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:20" (1/1) ... [2020-11-30 00:30:21,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:20" (1/1) ... [2020-11-30 00:30:21,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:20" (1/1) ... [2020-11-30 00:30:21,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:20" (1/1) ... [2020-11-30 00:30:21,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:20" (1/1) ... [2020-11-30 00:30:21,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:30:21,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:30:21,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:30:21,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:30:21,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/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 [2020-11-30 00:30:21,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:30:21,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:30:21,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 00:30:21,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:30:21,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 00:30:21,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:30:21,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:30:21,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:30:21,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:30:21,717 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:30:21,718 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-11-30 00:30:21,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:30:21 BoogieIcfgContainer [2020-11-30 00:30:21,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:30:21,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:30:21,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:30:21,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:30:21,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:30:20" (1/3) ... [2020-11-30 00:30:21,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aea71c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:30:21, skipping insertion in model container [2020-11-30 00:30:21,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:20" (2/3) ... [2020-11-30 00:30:21,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aea71c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:30:21, skipping insertion in model container [2020-11-30 00:30:21,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:30:21" (3/3) ... [2020-11-30 00:30:21,730 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2020-11-30 00:30:21,744 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:30:21,749 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:30:21,765 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:30:21,793 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:30:21,793 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:30:21,793 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:30:21,794 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:30:21,794 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:30:21,794 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:30:21,794 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:30:21,794 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:30:21,810 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-11-30 00:30:21,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:30:21,817 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:30:21,818 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:30:21,819 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:30:21,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:30:21,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2020-11-30 00:30:21,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:30:21,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847903497] [2020-11-30 00:30:21,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:30:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:30:22,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:30:22,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847903497] [2020-11-30 00:30:22,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:30:22,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:30:22,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785099911] [2020-11-30 00:30:22,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:30:22,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:30:22,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:30:22,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:30:22,047 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2020-11-30 00:30:22,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:30:22,093 INFO L93 Difference]: Finished difference Result 67 states and 105 transitions. [2020-11-30 00:30:22,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:30:22,095 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-30 00:30:22,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:30:22,127 INFO L225 Difference]: With dead ends: 67 [2020-11-30 00:30:22,127 INFO L226 Difference]: Without dead ends: 31 [2020-11-30 00:30:22,131 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 [2020-11-30 00:30:22,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-30 00:30:22,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-30 00:30:22,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-30 00:30:22,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2020-11-30 00:30:22,175 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2020-11-30 00:30:22,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:30:22,175 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2020-11-30 00:30:22,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:30:22,176 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2020-11-30 00:30:22,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:30:22,177 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:30:22,177 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:30:22,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:30:22,178 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:30:22,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:30:22,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2020-11-30 00:30:22,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:30:22,180 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010201104] [2020-11-30 00:30:22,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:30:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:30:22,260 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:30:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:30:22,322 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:30:22,354 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:30:22,354 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:30:22,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:30:22,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:30:22 BoogieIcfgContainer [2020-11-30 00:30:22,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:30:22,394 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:30:22,395 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:30:22,395 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:30:22,396 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:30:21" (3/4) ... [2020-11-30 00:30:22,400 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:30:22,400 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:30:22,403 INFO L168 Benchmark]: Toolchain (without parser) took 1795.01 ms. Allocated memory was 109.1 MB in the beginning and 138.4 MB in the end (delta: 29.4 MB). Free memory was 85.7 MB in the beginning and 104.5 MB in the end (delta: -18.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:22,404 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 109.1 MB. Free memory is still 66.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:30:22,405 INFO L168 Benchmark]: CACSL2BoogieTranslator took 381.90 ms. Allocated memory is still 109.1 MB. Free memory was 85.4 MB in the beginning and 84.7 MB in the end (delta: 675.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:22,406 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.14 ms. Allocated memory is still 109.1 MB. Free memory was 84.7 MB in the beginning and 83.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:30:22,407 INFO L168 Benchmark]: Boogie Preprocessor took 37.98 ms. Allocated memory is still 109.1 MB. Free memory was 83.1 MB in the beginning and 81.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:22,409 INFO L168 Benchmark]: RCFGBuilder took 644.01 ms. Allocated memory is still 109.1 MB. Free memory was 81.4 MB in the beginning and 61.6 MB in the end (delta: 19.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:22,410 INFO L168 Benchmark]: TraceAbstraction took 672.04 ms. Allocated memory was 109.1 MB in the beginning and 138.4 MB in the end (delta: 29.4 MB). Free memory was 61.2 MB in the beginning and 104.5 MB in the end (delta: -43.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:30:22,411 INFO L168 Benchmark]: Witness Printer took 5.86 ms. Allocated memory is still 138.4 MB. Free memory is still 104.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:30:22,417 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 109.1 MB. Free memory is still 66.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 381.90 ms. Allocated memory is still 109.1 MB. Free memory was 85.4 MB in the beginning and 84.7 MB in the end (delta: 675.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.14 ms. Allocated memory is still 109.1 MB. Free memory was 84.7 MB in the beginning and 83.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.98 ms. Allocated memory is still 109.1 MB. Free memory was 83.1 MB in the beginning and 81.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 644.01 ms. Allocated memory is still 109.1 MB. Free memory was 81.4 MB in the beginning and 61.6 MB in the end (delta: 19.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 672.04 ms. Allocated memory was 109.1 MB in the beginning and 138.4 MB in the end (delta: 29.4 MB). Free memory was 61.2 MB in the beginning and 104.5 MB in the end (delta: -43.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.86 ms. Allocated memory is still 138.4 MB. Free memory is still 104.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 43, overapproximation of bitwiseOr at line 44, overapproximation of someBinaryArithmeticDOUBLEoperation at line 92, overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryDOUBLEComparisonOperation at line 17. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L92] double x = 0.0 / 0.0; [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L32] COND FALSE !(j0 < 0) [L43] i = (0x000fffff) >> j0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L44] COND TRUE ((i0 & i) | i1) == 0 [L45] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L93] double res = ceil_double(x); [L17] return x != x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L96] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_1091.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 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 [2020-11-30 00:30:25,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:30:25,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:30:25,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:30:25,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:30:25,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:30:25,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:30:25,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:30:25,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:30:25,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:30:25,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:30:25,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:30:25,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:30:25,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:30:25,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:30:25,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:30:25,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:30:25,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:30:25,628 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:30:25,632 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:30:25,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:30:25,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:30:25,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:30:25,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:30:25,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:30:25,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:30:25,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:30:25,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:30:25,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:30:25,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:30:25,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:30:25,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:30:25,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:30:25,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:30:25,667 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:30:25,669 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:30:25,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:30:25,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:30:25,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:30:25,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:30:25,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:30:25,676 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 00:30:25,737 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:30:25,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:30:25,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:30:25,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:30:25,744 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:30:25,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:30:25,745 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:30:25,745 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:30:25,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:30:25,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:30:25,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:30:25,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:30:25,748 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 00:30:25,748 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 00:30:25,748 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:30:25,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:30:25,749 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:30:25,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:30:25,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:30:25,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:30:25,750 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:30:25,751 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:30:25,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:30:25,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:30:25,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:30:25,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:30:25,752 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 00:30:25,752 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 00:30:25,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:30:25,753 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:30:25,753 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 00:30:25,754 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_f6db609b-a360-46f1-9035-c45f8fda77bc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad197397f99c266313f2caa0ca0a263e036c988 [2020-11-30 00:30:26,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:30:26,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:30:26,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:30:26,304 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:30:26,305 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:30:26,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2020-11-30 00:30:26,387 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/data/bd9b9af35/be12c7ecf56643758191c0fb13ae4269/FLAG6c972993c [2020-11-30 00:30:26,984 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:30:26,985 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/sv-benchmarks/c/float-newlib/double_req_bl_1091.c [2020-11-30 00:30:27,004 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/data/bd9b9af35/be12c7ecf56643758191c0fb13ae4269/FLAG6c972993c [2020-11-30 00:30:27,320 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/data/bd9b9af35/be12c7ecf56643758191c0fb13ae4269 [2020-11-30 00:30:27,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:30:27,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:30:27,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:30:27,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:30:27,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:30:27,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:30:27" (1/1) ... [2020-11-30 00:30:27,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fad9617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:27, skipping insertion in model container [2020-11-30 00:30:27,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:30:27" (1/1) ... [2020-11-30 00:30:27,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:30:27,385 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:30:27,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:30:27,607 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:30:27,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:30:27,754 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:30:27,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:27 WrapperNode [2020-11-30 00:30:27,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:30:27,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:30:27,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:30:27,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:30:27,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:27" (1/1) ... [2020-11-30 00:30:27,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:27" (1/1) ... [2020-11-30 00:30:27,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:30:27,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:30:27,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:30:27,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:30:27,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:27" (1/1) ... [2020-11-30 00:30:27,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:27" (1/1) ... [2020-11-30 00:30:27,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:27" (1/1) ... [2020-11-30 00:30:27,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:27" (1/1) ... [2020-11-30 00:30:27,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:27" (1/1) ... [2020-11-30 00:30:27,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:27" (1/1) ... [2020-11-30 00:30:27,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:27" (1/1) ... [2020-11-30 00:30:27,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:30:27,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:30:27,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:30:27,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:30:27,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/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 [2020-11-30 00:30:28,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-30 00:30:28,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-30 00:30:28,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 00:30:28,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:30:28,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 00:30:28,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:30:28,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:30:28,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 00:30:28,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:30:30,127 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:30:30,128 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-11-30 00:30:30,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:30:30 BoogieIcfgContainer [2020-11-30 00:30:30,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:30:30,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:30:30,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:30:30,136 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:30:30,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:30:27" (1/3) ... [2020-11-30 00:30:30,137 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f35a439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:30:30, skipping insertion in model container [2020-11-30 00:30:30,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:30:27" (2/3) ... [2020-11-30 00:30:30,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f35a439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:30:30, skipping insertion in model container [2020-11-30 00:30:30,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:30:30" (3/3) ... [2020-11-30 00:30:30,140 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1091.c [2020-11-30 00:30:30,153 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:30:30,159 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:30:30,173 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:30:30,213 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:30:30,213 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:30:30,213 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:30:30,213 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:30:30,214 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:30:30,214 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:30:30,214 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:30:30,214 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:30:30,229 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-11-30 00:30:30,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:30:30,236 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:30:30,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:30:30,237 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:30:30,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:30:30,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2020-11-30 00:30:30,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:30:30,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1563463704] [2020-11-30 00:30:30,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/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 [2020-11-30 00:30:30,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:30:30,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 00:30:30,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:30:30,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:30:30,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:30:30,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:30:30,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1563463704] [2020-11-30 00:30:30,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:30:30,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 00:30:30,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207967520] [2020-11-30 00:30:30,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:30:30,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:30:30,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:30:30,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:30:30,500 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2020-11-30 00:30:30,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:30:30,532 INFO L93 Difference]: Finished difference Result 67 states and 105 transitions. [2020-11-30 00:30:30,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:30:30,534 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-30 00:30:30,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:30:30,546 INFO L225 Difference]: With dead ends: 67 [2020-11-30 00:30:30,546 INFO L226 Difference]: Without dead ends: 31 [2020-11-30 00:30:30,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:30:30,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-11-30 00:30:30,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-11-30 00:30:30,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-30 00:30:30,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2020-11-30 00:30:30,609 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2020-11-30 00:30:30,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:30:30,609 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2020-11-30 00:30:30,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:30:30,610 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2020-11-30 00:30:30,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:30:30,611 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:30:30,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:30:30,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 00:30:30,836 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:30:30,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:30:30,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2020-11-30 00:30:30,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:30:30,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018484956] [2020-11-30 00:30:30,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/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 [2020-11-30 00:30:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:30:31,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-30 00:30:31,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:30:31,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:30:31,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:30:31,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:30:31,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018484956] [2020-11-30 00:30:31,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:30:31,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-30 00:30:31,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856521802] [2020-11-30 00:30:31,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 00:30:31,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:30:31,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 00:30:31,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-30 00:30:31,420 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 10 states. [2020-11-30 00:30:33,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:30:33,139 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2020-11-30 00:30:33,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 00:30:33,141 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2020-11-30 00:30:33,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:30:33,142 INFO L225 Difference]: With dead ends: 42 [2020-11-30 00:30:33,142 INFO L226 Difference]: Without dead ends: 21 [2020-11-30 00:30:33,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-11-30 00:30:33,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-30 00:30:33,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-30 00:30:33,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-30 00:30:33,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-11-30 00:30:33,148 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 12 [2020-11-30 00:30:33,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:30:33,149 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-11-30 00:30:33,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 00:30:33,149 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-11-30 00:30:33,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 00:30:33,150 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:30:33,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:30:33,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 00:30:33,367 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:30:33,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:30:33,368 INFO L82 PathProgramCache]: Analyzing trace with hash -649399050, now seen corresponding path program 1 times [2020-11-30 00:30:33,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:30:33,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1655538794] [2020-11-30 00:30:33,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/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 [2020-11-30 00:30:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:30:33,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 00:30:33,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:30:33,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:30:33,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:30:34,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:30:34,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1655538794] [2020-11-30 00:30:34,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:30:34,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 00:30:34,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957071728] [2020-11-30 00:30:34,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 00:30:34,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:30:34,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 00:30:34,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-30 00:30:34,130 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 8 states. [2020-11-30 00:30:34,466 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-11-30 00:30:34,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:30:34,503 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-11-30 00:30:34,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 00:30:34,504 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-11-30 00:30:34,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:30:34,505 INFO L225 Difference]: With dead ends: 21 [2020-11-30 00:30:34,505 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:30:34,506 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-30 00:30:34,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:30:34,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:30:34,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:30:34,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:30:34,507 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-30 00:30:34,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:30:34,507 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:30:34,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 00:30:34,507 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:30:34,507 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:30:34,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 00:30:34,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:30:34,842 INFO L274 CegarLoopResult]: For program point L60(lines 60 61) no Hoare annotation was computed. [2020-11-30 00:30:34,842 INFO L274 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-11-30 00:30:34,842 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 00:30:34,842 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 00:30:34,843 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:30:34,843 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:30:34,843 INFO L274 CegarLoopResult]: For program point L53(lines 53 75) no Hoare annotation was computed. [2020-11-30 00:30:34,843 INFO L274 CegarLoopResult]: For program point L37(lines 37 40) no Hoare annotation was computed. [2020-11-30 00:30:34,843 INFO L274 CegarLoopResult]: For program point L62(lines 62 74) no Hoare annotation was computed. [2020-11-30 00:30:34,843 INFO L274 CegarLoopResult]: For program point L54(lines 54 57) no Hoare annotation was computed. [2020-11-30 00:30:34,843 INFO L274 CegarLoopResult]: For program point L46(lines 46 51) no Hoare annotation was computed. [2020-11-30 00:30:34,843 INFO L274 CegarLoopResult]: For program point L96(lines 96 99) no Hoare annotation was computed. [2020-11-30 00:30:34,844 INFO L274 CegarLoopResult]: For program point L63(lines 63 72) no Hoare annotation was computed. [2020-11-30 00:30:34,844 INFO L274 CegarLoopResult]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2020-11-30 00:30:34,844 INFO L274 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2020-11-30 00:30:34,844 INFO L274 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2020-11-30 00:30:34,844 INFO L274 CegarLoopResult]: For program point L64(lines 64 71) no Hoare annotation was computed. [2020-11-30 00:30:34,844 INFO L274 CegarLoopResult]: For program point L31(lines 31 75) no Hoare annotation was computed. [2020-11-30 00:30:34,844 INFO L274 CegarLoopResult]: For program point L32(lines 32 52) no Hoare annotation was computed. [2020-11-30 00:30:34,844 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:30:34,845 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 00:30:34,845 INFO L274 CegarLoopResult]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2020-11-30 00:30:34,845 INFO L270 CegarLoopResult]: At program point L24-2(lines 24 29) the Hoare annotation is: (not (fp.eq ULTIMATE.start_ceil_double_~x ULTIMATE.start_ceil_double_~x)) [2020-11-30 00:30:34,845 INFO L274 CegarLoopResult]: For program point L24-3(lines 24 29) no Hoare annotation was computed. [2020-11-30 00:30:34,845 INFO L270 CegarLoopResult]: At program point L82(lines 21 83) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_ceil_double_~x ULTIMATE.start_ceil_double_~x)) (not (fp.eq |ULTIMATE.start_ceil_double_#res| |ULTIMATE.start_ceil_double_#res|))) [2020-11-30 00:30:34,846 INFO L274 CegarLoopResult]: For program point L33(lines 33 41) no Hoare annotation was computed. [2020-11-30 00:30:34,846 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:30:34,846 INFO L270 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (not (fp.eq ULTIMATE.start_ceil_double_~x ULTIMATE.start_ceil_double_~x)) (not (fp.eq |ULTIMATE.start_ceil_double_#res| |ULTIMATE.start_ceil_double_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2020-11-30 00:30:34,846 INFO L274 CegarLoopResult]: For program point L34(lines 34 40) no Hoare annotation was computed. [2020-11-30 00:30:34,846 INFO L274 CegarLoopResult]: For program point L76(lines 76 81) no Hoare annotation was computed. [2020-11-30 00:30:34,846 INFO L274 CegarLoopResult]: For program point L76-1(lines 21 83) no Hoare annotation was computed. [2020-11-30 00:30:34,846 INFO L274 CegarLoopResult]: For program point L76-2(lines 76 81) no Hoare annotation was computed. [2020-11-30 00:30:34,847 INFO L277 CegarLoopResult]: At program point L101(lines 85 102) the Hoare annotation is: true [2020-11-30 00:30:34,847 INFO L274 CegarLoopResult]: For program point L68(lines 68 69) no Hoare annotation was computed. [2020-11-30 00:30:34,847 INFO L274 CegarLoopResult]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2020-11-30 00:30:34,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:30:34 BoogieIcfgContainer [2020-11-30 00:30:34,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:30:34,868 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:30:34,868 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:30:34,869 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:30:34,869 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:30:30" (3/4) ... [2020-11-30 00:30:34,873 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:30:34,891 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-30 00:30:34,891 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-30 00:30:34,892 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:30:34,892 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:30:34,932 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result) [2020-11-30 00:30:34,934 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result)) && 1bv32 == \result [2020-11-30 00:30:34,979 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f6db609b-a360-46f1-9035-c45f8fda77bc/bin/uautomizer/witness.graphml [2020-11-30 00:30:34,979 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:30:34,981 INFO L168 Benchmark]: Toolchain (without parser) took 7655.64 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 50.2 MB in the beginning and 66.3 MB in the end (delta: -16.1 MB). Peak memory consumption was 43.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:34,981 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 67.1 MB. Free memory is still 49.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:30:34,982 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.29 ms. Allocated memory is still 67.1 MB. Free memory was 50.1 MB in the beginning and 51.2 MB in the end (delta: -1.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:34,982 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.83 ms. Allocated memory is still 67.1 MB. Free memory was 51.2 MB in the beginning and 49.5 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:30:34,983 INFO L168 Benchmark]: Boogie Preprocessor took 84.57 ms. Allocated memory is still 67.1 MB. Free memory was 49.2 MB in the beginning and 47.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:34,983 INFO L168 Benchmark]: RCFGBuilder took 2180.27 ms. Allocated memory is still 67.1 MB. Free memory was 47.6 MB in the beginning and 48.8 MB in the end (delta: -1.2 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:34,984 INFO L168 Benchmark]: TraceAbstraction took 4735.64 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 48.2 MB in the beginning and 27.3 MB in the end (delta: 20.8 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:34,984 INFO L168 Benchmark]: Witness Printer took 111.03 ms. Allocated memory is still 86.0 MB. Free memory was 27.3 MB in the beginning and 66.3 MB in the end (delta: -38.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:30:34,987 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 67.1 MB. Free memory is still 49.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 440.29 ms. Allocated memory is still 67.1 MB. Free memory was 50.1 MB in the beginning and 51.2 MB in the end (delta: -1.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.83 ms. Allocated memory is still 67.1 MB. Free memory was 51.2 MB in the beginning and 49.5 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 84.57 ms. Allocated memory is still 67.1 MB. Free memory was 49.2 MB in the beginning and 47.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2180.27 ms. Allocated memory is still 67.1 MB. Free memory was 47.6 MB in the beginning and 48.8 MB in the end (delta: -1.2 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4735.64 ms. Allocated memory was 67.1 MB in the beginning and 86.0 MB in the end (delta: 18.9 MB). Free memory was 48.2 MB in the beginning and 27.3 MB in the end (delta: 20.8 MB). Peak memory consumption was 38.6 MB. Max. memory is 16.1 GB. * Witness Printer took 111.03 ms. Allocated memory is still 86.0 MB. Free memory was 27.3 MB in the beginning and 66.3 MB in the end (delta: -38.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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: 85]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(x, x) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (!~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result)) && 1bv32 == \result - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(\result, \result) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 68 SDtfs, 25 SDslu, 94 SDs, 0 SdLazy, 72 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 26 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 12 QuantifiedInterpolants, 3121 SizeOfPredicates, 18 NumberOfNonLiveVariables, 153 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...