./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.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_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/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 716c28290dbb6f2a00a15a2121f6ea544c27813b .................................................................................................................................................................................................................................................................................................... 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_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/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 716c28290dbb6f2a00a15a2121f6ea544c27813b ...................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:56:40,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:56:40,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:56:40,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:56:40,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:56:40,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:56:40,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:56:40,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:56:40,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:56:40,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:56:40,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:56:40,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:56:40,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:56:40,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:56:40,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:56:40,181 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:56:40,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:56:40,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:56:40,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:56:40,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:56:40,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:56:40,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:56:40,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:56:40,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:56:40,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:56:40,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:56:40,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:56:40,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:56:40,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:56:40,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:56:40,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:56:40,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:56:40,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:56:40,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:56:40,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:56:40,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:56:40,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:56:40,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:56:40,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:56:40,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:56:40,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:56:40,228 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 02:56:40,255 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:56:40,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:56:40,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:56:40,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:56:40,271 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:56:40,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:56:40,272 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:56:40,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:56:40,272 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:56:40,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:56:40,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:56:40,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:56:40,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:56:40,275 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:56:40,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:56:40,275 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:56:40,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:56:40,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:56:40,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:56:40,276 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:56:40,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:56:40,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:56:40,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:56:40,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:56:40,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:56:40,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:56:40,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:56:40,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:56:40,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:56:40,279 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_b9ced027-69bc-4cb9-aaa6-a970d6381e49/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 716c28290dbb6f2a00a15a2121f6ea544c27813b [2020-11-28 02:56:40,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:56:40,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:56:40,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:56:40,590 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:56:40,591 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:56:40,592 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2020-11-28 02:56:40,666 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/data/f156fd588/ed84cf8ae5794ca8b6cf0c3c6d9dbe95/FLAGd69ea94a6 [2020-11-28 02:56:41,182 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:56:41,182 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2020-11-28 02:56:41,194 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/data/f156fd588/ed84cf8ae5794ca8b6cf0c3c6d9dbe95/FLAGd69ea94a6 [2020-11-28 02:56:41,524 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/data/f156fd588/ed84cf8ae5794ca8b6cf0c3c6d9dbe95 [2020-11-28 02:56:41,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:56:41,528 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:56:41,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:41,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:56:41,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:56:41,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:41" (1/1) ... [2020-11-28 02:56:41,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@714aeff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:41, skipping insertion in model container [2020-11-28 02:56:41,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:41" (1/1) ... [2020-11-28 02:56:41,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:56:41,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:56:41,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:41,827 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:56:41,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:41,870 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:56:41,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:41 WrapperNode [2020-11-28 02:56:41,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:41,872 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:41,872 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:56:41,872 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:56:41,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:41" (1/1) ... [2020-11-28 02:56:41,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:41" (1/1) ... [2020-11-28 02:56:41,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:41,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:56:41,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:56:41,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:56:41,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:41" (1/1) ... [2020-11-28 02:56:41,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:41" (1/1) ... [2020-11-28 02:56:41,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:41" (1/1) ... [2020-11-28 02:56:41,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:41" (1/1) ... [2020-11-28 02:56:41,932 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:41" (1/1) ... [2020-11-28 02:56:41,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:41" (1/1) ... [2020-11-28 02:56:41,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:41" (1/1) ... [2020-11-28 02:56:41,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:56:41,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:56:41,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:56:41,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:56:41,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/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 [2020-11-28 02:56:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:56:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:56:42,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-28 02:56:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 02:56:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-28 02:56:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:56:42,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:56:42,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 02:56:42,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 02:56:42,421 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:56:42,422 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-28 02:56:42,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:42 BoogieIcfgContainer [2020-11-28 02:56:42,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:56:42,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:56:42,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:56:42,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:56:42,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:56:41" (1/3) ... [2020-11-28 02:56:42,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4427ad63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:42, skipping insertion in model container [2020-11-28 02:56:42,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:41" (2/3) ... [2020-11-28 02:56:42,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4427ad63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:42, skipping insertion in model container [2020-11-28 02:56:42,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:42" (3/3) ... [2020-11-28 02:56:42,436 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2020-11-28 02:56:42,447 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:56:42,451 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 02:56:42,462 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 02:56:42,482 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:56:42,483 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:56:42,483 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:56:42,483 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:56:42,483 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:56:42,483 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:56:42,483 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:56:42,483 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:56:42,503 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-28 02:56:42,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 02:56:42,508 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:42,509 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:42,510 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:42,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:42,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2020-11-28 02:56:42,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:42,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714953460] [2020-11-28 02:56:42,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:42,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:42,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714953460] [2020-11-28 02:56:42,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:42,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 02:56:42,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486482197] [2020-11-28 02:56:42,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 02:56:42,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:42,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 02:56:42,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 02:56:42,676 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-28 02:56:42,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:42,693 INFO L93 Difference]: Finished difference Result 65 states and 103 transitions. [2020-11-28 02:56:42,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 02:56:42,694 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-28 02:56:42,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:42,703 INFO L225 Difference]: With dead ends: 65 [2020-11-28 02:56:42,703 INFO L226 Difference]: Without dead ends: 30 [2020-11-28 02:56:42,706 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 [2020-11-28 02:56:42,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-28 02:56:42,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-28 02:56:42,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-28 02:56:42,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-11-28 02:56:42,740 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2020-11-28 02:56:42,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:42,741 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-11-28 02:56:42,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 02:56:42,741 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-11-28 02:56:42,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 02:56:42,742 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:42,742 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:42,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:56:42,743 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:42,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:42,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2020-11-28 02:56:42,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:42,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218566536] [2020-11-28 02:56:42,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:56:42,797 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:56:42,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:56:42,850 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:56:42,896 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:56:42,900 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 02:56:42,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 02:56:42,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:56:42 BoogieIcfgContainer [2020-11-28 02:56:42,925 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:56:42,926 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:56:42,926 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:56:42,926 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:56:42,927 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:42" (3/4) ... [2020-11-28 02:56:42,930 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 02:56:42,930 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:56:42,932 INFO L168 Benchmark]: Toolchain (without parser) took 1402.97 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 57.9 MB in the beginning and 69.8 MB in the end (delta: -11.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:42,933 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 90.2 MB. Free memory was 47.4 MB in the beginning and 47.4 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:42,934 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.18 ms. Allocated memory is still 90.2 MB. Free memory was 57.8 MB in the beginning and 66.0 MB in the end (delta: -8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:42,937 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.00 ms. Allocated memory is still 90.2 MB. Free memory was 66.0 MB in the beginning and 64.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:42,939 INFO L168 Benchmark]: Boogie Preprocessor took 38.46 ms. Allocated memory is still 90.2 MB. Free memory was 64.3 MB in the beginning and 62.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:42,940 INFO L168 Benchmark]: RCFGBuilder took 476.10 ms. Allocated memory is still 90.2 MB. Free memory was 62.7 MB in the beginning and 43.3 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:42,941 INFO L168 Benchmark]: TraceAbstraction took 496.28 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 42.7 MB in the beginning and 70.4 MB in the end (delta: -27.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:42,942 INFO L168 Benchmark]: Witness Printer took 4.28 ms. Allocated memory is still 109.1 MB. Free memory was 70.4 MB in the beginning and 69.8 MB in the end (delta: 573.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:42,947 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 90.2 MB. Free memory was 47.4 MB in the beginning and 47.4 MB in the end (delta: 38.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 339.18 ms. Allocated memory is still 90.2 MB. Free memory was 57.8 MB in the beginning and 66.0 MB in the end (delta: -8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.00 ms. Allocated memory is still 90.2 MB. Free memory was 66.0 MB in the beginning and 64.3 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.46 ms. Allocated memory is still 90.2 MB. Free memory was 64.3 MB in the beginning and 62.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 476.10 ms. Allocated memory is still 90.2 MB. Free memory was 62.7 MB in the beginning and 43.3 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 496.28 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 42.7 MB in the beginning and 70.4 MB in the end (delta: -27.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.28 ms. Allocated memory is still 109.1 MB. Free memory was 70.4 MB in the beginning and 69.8 MB in the end (delta: 573.2 kB). Peak memory consumption was 2.1 MB. 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 bitwiseAnd at line 30, overapproximation of someBinaryDOUBLEComparisonOperation at line 97. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L93] double x = 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] [L94] double res = ceil_double(x); [L97] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L3] __assert_fail("0", "double_req_bl_1092b.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 47 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=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:56:45,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:56:45,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:56:45,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:56:45,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:56:45,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:56:45,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:56:45,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:56:45,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:56:45,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:56:45,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:56:45,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:56:45,534 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:56:45,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:56:45,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:56:45,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:56:45,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:56:45,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:56:45,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:56:45,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:56:45,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:56:45,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:56:45,571 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:56:45,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:56:45,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:56:45,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:56:45,584 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:56:45,585 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:56:45,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:56:45,588 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:56:45,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:56:45,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:56:45,592 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:56:45,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:56:45,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:56:45,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:56:45,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:56:45,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:56:45,596 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:56:45,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:56:45,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:56:45,600 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-28 02:56:45,643 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:56:45,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:56:45,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:56:45,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:56:45,648 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:56:45,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:56:45,649 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:56:45,649 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:56:45,649 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:56:45,649 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:56:45,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:56:45,651 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:56:45,651 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 02:56:45,651 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 02:56:45,651 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:56:45,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:56:45,652 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:56:45,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:56:45,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:56:45,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:56:45,653 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:56:45,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:56:45,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:56:45,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:56:45,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:56:45,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:56:45,654 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 02:56:45,655 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 02:56:45,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:56:45,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:56:45,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 02:56:45,655 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_b9ced027-69bc-4cb9-aaa6-a970d6381e49/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 716c28290dbb6f2a00a15a2121f6ea544c27813b [2020-11-28 02:56:46,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:56:46,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:56:46,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:56:46,076 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:56:46,077 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:56:46,078 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2020-11-28 02:56:46,165 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/data/a6128d523/0b4dc8c996924e8aa4bb35c6a7fff6e1/FLAGee825bb07 [2020-11-28 02:56:46,695 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:56:46,695 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2020-11-28 02:56:46,703 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/data/a6128d523/0b4dc8c996924e8aa4bb35c6a7fff6e1/FLAGee825bb07 [2020-11-28 02:56:47,045 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/data/a6128d523/0b4dc8c996924e8aa4bb35c6a7fff6e1 [2020-11-28 02:56:47,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:56:47,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:56:47,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:47,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:56:47,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:56:47,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:47" (1/1) ... [2020-11-28 02:56:47,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22c3831c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:47, skipping insertion in model container [2020-11-28 02:56:47,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:47" (1/1) ... [2020-11-28 02:56:47,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:56:47,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:56:47,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:47,339 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:56:47,405 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:47,462 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:56:47,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:47 WrapperNode [2020-11-28 02:56:47,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:47,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:47,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:56:47,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:56:47,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:47" (1/1) ... [2020-11-28 02:56:47,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:47" (1/1) ... [2020-11-28 02:56:47,562 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:47,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:56:47,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:56:47,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:56:47,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:47" (1/1) ... [2020-11-28 02:56:47,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:47" (1/1) ... [2020-11-28 02:56:47,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:47" (1/1) ... [2020-11-28 02:56:47,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:47" (1/1) ... [2020-11-28 02:56:47,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:47" (1/1) ... [2020-11-28 02:56:47,617 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:47" (1/1) ... [2020-11-28 02:56:47,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:47" (1/1) ... [2020-11-28 02:56:47,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:56:47,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:56:47,637 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:56:47,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:56:47,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/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 [2020-11-28 02:56:47,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-28 02:56:47,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-28 02:56:47,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 02:56:47,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:56:47,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 02:56:47,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:56:47,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:56:47,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 02:56:47,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 02:56:49,208 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:56:49,208 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-28 02:56:49,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:49 BoogieIcfgContainer [2020-11-28 02:56:49,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:56:49,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:56:49,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:56:49,215 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:56:49,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:56:47" (1/3) ... [2020-11-28 02:56:49,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aac5edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:49, skipping insertion in model container [2020-11-28 02:56:49,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:47" (2/3) ... [2020-11-28 02:56:49,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aac5edb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:49, skipping insertion in model container [2020-11-28 02:56:49,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:49" (3/3) ... [2020-11-28 02:56:49,218 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2020-11-28 02:56:49,229 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:56:49,238 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 02:56:49,252 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 02:56:49,278 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:56:49,278 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:56:49,279 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:56:49,279 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:56:49,279 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:56:49,279 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:56:49,279 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:56:49,279 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:56:49,292 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-28 02:56:49,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 02:56:49,298 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:49,298 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:49,299 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:49,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:49,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1046119076, now seen corresponding path program 1 times [2020-11-28 02:56:49,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 02:56:49,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364965219] [2020-11-28 02:56:49,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/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 [2020-11-28 02:56:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:49,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 02:56:49,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:49,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:49,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 02:56:49,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:49,456 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364965219] [2020-11-28 02:56:49,457 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:49,457 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 02:56:49,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169678857] [2020-11-28 02:56:49,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 02:56:49,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 02:56:49,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 02:56:49,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 02:56:49,478 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-28 02:56:49,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:49,497 INFO L93 Difference]: Finished difference Result 65 states and 103 transitions. [2020-11-28 02:56:49,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 02:56:49,499 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-28 02:56:49,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:49,509 INFO L225 Difference]: With dead ends: 65 [2020-11-28 02:56:49,509 INFO L226 Difference]: Without dead ends: 30 [2020-11-28 02:56:49,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 02:56:49,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-28 02:56:49,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-28 02:56:49,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-28 02:56:49,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-11-28 02:56:49,546 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 10 [2020-11-28 02:56:49,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:49,547 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-11-28 02:56:49,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 02:56:49,547 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-11-28 02:56:49,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 02:56:49,548 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:49,548 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:49,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 02:56:49,764 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:49,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:49,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1289188121, now seen corresponding path program 1 times [2020-11-28 02:56:49,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 02:56:49,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827824094] [2020-11-28 02:56:49,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/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 [2020-11-28 02:56:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:49,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 02:56:49,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:50,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:50,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 02:56:50,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:50,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827824094] [2020-11-28 02:56:50,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:50,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-28 02:56:50,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296559692] [2020-11-28 02:56:50,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 02:56:50,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 02:56:50,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 02:56:50,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-28 02:56:50,169 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 8 states. [2020-11-28 02:56:50,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:50,630 INFO L93 Difference]: Finished difference Result 44 states and 56 transitions. [2020-11-28 02:56:50,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 02:56:50,632 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-28 02:56:50,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:50,633 INFO L225 Difference]: With dead ends: 44 [2020-11-28 02:56:50,633 INFO L226 Difference]: Without dead ends: 24 [2020-11-28 02:56:50,635 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-11-28 02:56:50,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-11-28 02:56:50,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 17. [2020-11-28 02:56:50,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-28 02:56:50,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-11-28 02:56:50,638 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2020-11-28 02:56:50,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:50,638 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-11-28 02:56:50,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 02:56:50,639 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-11-28 02:56:50,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 02:56:50,639 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:50,639 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:50,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 02:56:50,843 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:50,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:50,844 INFO L82 PathProgramCache]: Analyzing trace with hash -713684991, now seen corresponding path program 1 times [2020-11-28 02:56:50,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 02:56:50,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422460811] [2020-11-28 02:56:50,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/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 [2020-11-28 02:56:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:51,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 02:56:51,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:51,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:51,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 02:56:51,818 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-11-28 02:56:52,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:52,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422460811] [2020-11-28 02:56:52,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:52,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-28 02:56:52,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018365295] [2020-11-28 02:56:52,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 02:56:52,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 02:56:52,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 02:56:52,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:56:52,117 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 6 states. [2020-11-28 02:56:52,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:52,656 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2020-11-28 02:56:52,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 02:56:52,664 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-28 02:56:52,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:52,664 INFO L225 Difference]: With dead ends: 24 [2020-11-28 02:56:52,664 INFO L226 Difference]: Without dead ends: 17 [2020-11-28 02:56:52,665 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-28 02:56:52,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-28 02:56:52,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-28 02:56:52,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-28 02:56:52,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-11-28 02:56:52,669 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2020-11-28 02:56:52,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:52,669 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-11-28 02:56:52,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 02:56:52,669 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-11-28 02:56:52,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 02:56:52,670 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:52,670 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:52,874 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 02:56:52,875 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:52,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:52,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1786240041, now seen corresponding path program 1 times [2020-11-28 02:56:52,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 02:56:52,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [711229822] [2020-11-28 02:56:52,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-28 02:56:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:56:53,138 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:56:53,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:56:53,299 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:56:53,347 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-28 02:56:53,347 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 02:56:53,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-28 02:56:53,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:56:53 BoogieIcfgContainer [2020-11-28 02:56:53,594 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:56:53,595 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:56:53,595 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:56:53,595 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:56:53,596 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:49" (3/4) ... [2020-11-28 02:56:53,597 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 02:56:53,653 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b9ced027-69bc-4cb9-aaa6-a970d6381e49/bin/uautomizer/witness.graphml [2020-11-28 02:56:53,653 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:56:53,655 INFO L168 Benchmark]: Toolchain (without parser) took 6600.06 ms. Allocated memory was 52.4 MB in the beginning and 75.5 MB in the end (delta: 23.1 MB). Free memory was 29.0 MB in the beginning and 45.4 MB in the end (delta: -16.4 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:53,656 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 52.4 MB. Free memory was 34.4 MB in the beginning and 34.4 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:53,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.58 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 28.8 MB in the beginning and 46.3 MB in the end (delta: -17.5 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:53,657 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.07 ms. Allocated memory is still 62.9 MB. Free memory was 46.3 MB in the beginning and 44.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:53,658 INFO L168 Benchmark]: Boogie Preprocessor took 71.36 ms. Allocated memory is still 62.9 MB. Free memory was 44.6 MB in the beginning and 42.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:53,659 INFO L168 Benchmark]: RCFGBuilder took 1573.97 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 38.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:53,659 INFO L168 Benchmark]: TraceAbstraction took 4382.72 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 38.1 MB in the beginning and 49.0 MB in the end (delta: -10.8 MB). Peak memory consumption was 1.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:53,660 INFO L168 Benchmark]: Witness Printer took 58.45 ms. Allocated memory is still 75.5 MB. Free memory was 49.0 MB in the beginning and 45.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:53,664 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 52.4 MB. Free memory was 34.4 MB in the beginning and 34.4 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 415.58 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 28.8 MB in the beginning and 46.3 MB in the end (delta: -17.5 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.07 ms. Allocated memory is still 62.9 MB. Free memory was 46.3 MB in the beginning and 44.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.36 ms. Allocated memory is still 62.9 MB. Free memory was 44.6 MB in the beginning and 42.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1573.97 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 38.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4382.72 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 38.1 MB in the beginning and 49.0 MB in the end (delta: -10.8 MB). Peak memory consumption was 1.2 MB. Max. memory is 16.1 GB. * Witness Printer took 58.45 ms. Allocated memory is still 75.5 MB. Free memory was 49.0 MB in the beginning and 45.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L93] double x = 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 TRUE j0 < 0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L33] COND TRUE huge_ceil + x > 0.0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L34] COND FALSE !(i0 < 0) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L37] COND TRUE (i0 | i1) != 0 [L38] i0 = 0x3ff00000 [L39] i1 = 0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L77] ieee_double_shape_type iw_u; [L78] iw_u.parts.msw = (i0) [L79] iw_u.parts.lsw = (i1) [L80] EXPR iw_u.value [L80] (x) = iw_u.value [L82] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L94] double res = ceil_double(x); [L97] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L3] __assert_fail("0", "double_req_bl_1092b.c", 3, "reach_error") VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 69 SDtfs, 107 SDslu, 27 SDs, 0 SdLazy, 28 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 64 ConstructedInterpolants, 5 QuantifiedInterpolants, 3227 SizeOfPredicates, 11 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 15 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 incorrect! Received shutdown request...