./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1052c.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_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052c.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94bd51eb56827c6c266b6ed4f7ea5182fc2e875c ............................................................................................................................................................................................................................................................................................................. 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_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052c.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94bd51eb56827c6c266b6ed4f7ea5182fc2e875c ............................................................................................................................................................................................................................................................................................................................................................................................................................ 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 07:35:49,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:35:49,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:35:49,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:35:49,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:35:49,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:35:49,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:35:49,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:35:49,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:35:49,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:35:49,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:35:49,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:35:49,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:35:49,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:35:49,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:35:49,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:35:49,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:35:49,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:35:49,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:35:49,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:35:49,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:35:49,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:35:49,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:35:49,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:35:49,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:35:49,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:35:49,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:35:49,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:35:49,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:35:49,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:35:49,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:35:49,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:35:49,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:35:49,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:35:49,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:35:49,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:35:49,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:35:49,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:35:49,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:35:49,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:35:49,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:35:49,188 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:35:49,222 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:35:49,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:35:49,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:35:49,223 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:35:49,224 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:35:49,224 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:35:49,224 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:35:49,224 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:35:49,224 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:35:49,225 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:35:49,226 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:35:49,226 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:35:49,226 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:35:49,226 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:35:49,227 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:35:49,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:35:49,227 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:35:49,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:35:49,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:35:49,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:35:49,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:35:49,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:35:49,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:35:49,229 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:35:49,229 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:35:49,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:35:49,230 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:35:49,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:35:49,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:35:49,230 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:35:49,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:35:49,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:35:49,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:35:49,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:35:49,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:35:49,232 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:35:49,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:35:49,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:35:49,232 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:35:49,233 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:35:49,233 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94bd51eb56827c6c266b6ed4f7ea5182fc2e875c [2020-11-28 07:35:49,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:35:49,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:35:49,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:35:49,501 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:35:49,502 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:35:49,503 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2020-11-28 07:35:49,572 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/data/7197642dc/e2e4bb0ed5fd4abbba6be5fb837596cc/FLAGf6c94507a [2020-11-28 07:35:50,141 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:35:50,141 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2020-11-28 07:35:50,152 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/data/7197642dc/e2e4bb0ed5fd4abbba6be5fb837596cc/FLAGf6c94507a [2020-11-28 07:35:50,532 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/data/7197642dc/e2e4bb0ed5fd4abbba6be5fb837596cc [2020-11-28 07:35:50,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:35:50,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:35:50,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:35:50,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:35:50,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:35:50,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:35:50" (1/1) ... [2020-11-28 07:35:50,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a82ea97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:50, skipping insertion in model container [2020-11-28 07:35:50,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:35:50" (1/1) ... [2020-11-28 07:35:50,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:35:50,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:35:50,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:35:50,774 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:35:50,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:35:50,833 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:35:50,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:50 WrapperNode [2020-11-28 07:35:50,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:35:50,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:35:50,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:35:50,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:35:50,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:50" (1/1) ... [2020-11-28 07:35:50,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:50" (1/1) ... [2020-11-28 07:35:50,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:35:50,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:35:50,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:35:50,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:35:50,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:50" (1/1) ... [2020-11-28 07:35:50,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:50" (1/1) ... [2020-11-28 07:35:50,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:50" (1/1) ... [2020-11-28 07:35:50,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:50" (1/1) ... [2020-11-28 07:35:50,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:50" (1/1) ... [2020-11-28 07:35:50,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:50" (1/1) ... [2020-11-28 07:35:50,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:50" (1/1) ... [2020-11-28 07:35:50,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:35:50,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:35:50,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:35:50,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:35:50,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/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 07:35:51,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:35:51,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:35:51,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-28 07:35:51,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 07:35:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-28 07:35:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:35:51,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:35:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 07:35:51,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:35:51,856 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:35:51,856 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-28 07:35:51,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:35:51 BoogieIcfgContainer [2020-11-28 07:35:51,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:35:51,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:35:51,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:35:51,867 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:35:51,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:35:50" (1/3) ... [2020-11-28 07:35:51,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5e6426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:35:51, skipping insertion in model container [2020-11-28 07:35:51,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:50" (2/3) ... [2020-11-28 07:35:51,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e5e6426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:35:51, skipping insertion in model container [2020-11-28 07:35:51,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:35:51" (3/3) ... [2020-11-28 07:35:51,871 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c.c [2020-11-28 07:35:51,879 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:35:51,882 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:35:51,892 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:35:51,915 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:35:51,915 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:35:51,915 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:35:51,915 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:35:51,915 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:35:51,916 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:35:51,916 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:35:51,916 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:35:51,928 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-11-28 07:35:51,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 07:35:51,932 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:35:51,933 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:35:51,933 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:35:51,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:35:51,938 INFO L82 PathProgramCache]: Analyzing trace with hash 271173404, now seen corresponding path program 1 times [2020-11-28 07:35:51,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:35:51,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077687353] [2020-11-28 07:35:51,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:35:52,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:35:52,061 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 07:35:52,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077687353] [2020-11-28 07:35:52,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:35:52,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:35:52,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781835778] [2020-11-28 07:35:52,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:35:52,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:35:52,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:35:52,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:35:52,082 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-11-28 07:35:52,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:35:52,098 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2020-11-28 07:35:52,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:35:52,099 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-28 07:35:52,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:35:52,108 INFO L225 Difference]: With dead ends: 43 [2020-11-28 07:35:52,108 INFO L226 Difference]: Without dead ends: 20 [2020-11-28 07:35:52,111 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 07:35:52,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-28 07:35:52,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-28 07:35:52,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-28 07:35:52,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2020-11-28 07:35:52,140 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 9 [2020-11-28 07:35:52,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:35:52,140 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2020-11-28 07:35:52,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:35:52,141 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2020-11-28 07:35:52,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 07:35:52,141 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:35:52,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:35:52,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:35:52,142 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:35:52,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:35:52,143 INFO L82 PathProgramCache]: Analyzing trace with hash -710518883, now seen corresponding path program 1 times [2020-11-28 07:35:52,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:35:52,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231118594] [2020-11-28 07:35:52,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:35:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:35:52,184 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:35:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:35:52,213 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:35:52,257 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:35:52,257 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:35:52,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:35:52,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:35:52 BoogieIcfgContainer [2020-11-28 07:35:52,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:35:52,287 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:35:52,287 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:35:52,288 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:35:52,288 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:35:51" (3/4) ... [2020-11-28 07:35:52,291 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 07:35:52,291 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:35:52,293 INFO L168 Benchmark]: Toolchain (without parser) took 1751.72 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 64.1 MB in the beginning and 94.1 MB in the end (delta: -30.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:35:52,294 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 69.2 MB. Free memory was 31.1 MB in the beginning and 31.0 MB in the end (delta: 37.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:35:52,295 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.73 ms. Allocated memory is still 94.4 MB. Free memory was 63.9 MB in the beginning and 70.6 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:35:52,296 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.21 ms. Allocated memory is still 94.4 MB. Free memory was 70.6 MB in the beginning and 68.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:35:52,296 INFO L168 Benchmark]: Boogie Preprocessor took 47.31 ms. Allocated memory is still 94.4 MB. Free memory was 68.6 MB in the beginning and 67.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:35:52,297 INFO L168 Benchmark]: RCFGBuilder took 911.77 ms. Allocated memory is still 94.4 MB. Free memory was 67.0 MB in the beginning and 57.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:35:52,298 INFO L168 Benchmark]: TraceAbstraction took 427.30 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 57.5 MB in the beginning and 94.1 MB in the end (delta: -36.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:35:52,298 INFO L168 Benchmark]: Witness Printer took 3.99 ms. Allocated memory is still 119.5 MB. Free memory is still 94.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:35:52,302 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 69.2 MB. Free memory was 31.1 MB in the beginning and 31.0 MB in the end (delta: 37.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 289.73 ms. Allocated memory is still 94.4 MB. Free memory was 63.9 MB in the beginning and 70.6 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.21 ms. Allocated memory is still 94.4 MB. Free memory was 70.6 MB in the beginning and 68.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.31 ms. Allocated memory is still 94.4 MB. Free memory was 68.6 MB in the beginning and 67.0 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 911.77 ms. Allocated memory is still 94.4 MB. Free memory was 67.0 MB in the beginning and 57.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 427.30 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 57.5 MB in the beginning and 94.1 MB in the end (delta: -36.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.99 ms. Allocated memory is still 119.5 MB. Free memory is still 94.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 100, overapproximation of bitwiseAnd at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51, overapproximation of someBinaryDOUBLEComparisonOperation at line 104. Possible FailurePath: [L16] static const double huge_floor = 1.0e300; [L100] double x = -0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND FALSE !(j0 < 20) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L49] COND TRUE j0 > 51 [L50] COND FALSE !(j0 == 0x400) [L53] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L101] double res = floor_double(x); [L104] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L104] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L3] __assert_fail("0", "double_req_bl_1052c.c", 3, "reach_error") VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 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=22occurred 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, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 07:35:54,596 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:35:54,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:35:54,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:35:54,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:35:54,637 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:35:54,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:35:54,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:35:54,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:35:54,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:35:54,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:35:54,648 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:35:54,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:35:54,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:35:54,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:35:54,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:35:54,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:35:54,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:35:54,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:35:54,659 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:35:54,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:35:54,665 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:35:54,666 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:35:54,667 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:35:54,671 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:35:54,671 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:35:54,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:35:54,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:35:54,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:35:54,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:35:54,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:35:54,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:35:54,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:35:54,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:35:54,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:35:54,680 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:35:54,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:35:54,681 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:35:54,681 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:35:54,682 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:35:54,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:35:54,683 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:35:54,737 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:35:54,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:35:54,740 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:35:54,741 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:35:54,741 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:35:54,741 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:35:54,741 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:35:54,741 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:35:54,742 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:35:54,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:35:54,744 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:35:54,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:35:54,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:35:54,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:35:54,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:35:54,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:35:54,745 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:35:54,746 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:35:54,746 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:35:54,746 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:35:54,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:35:54,746 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:35:54,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:35:54,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:35:54,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:35:54,747 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:35:54,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:35:54,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:35:54,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:35:54,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:35:54,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:35:54,749 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:35:54,749 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:35:54,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:35:54,750 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:35:54,750 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:35:54,750 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_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94bd51eb56827c6c266b6ed4f7ea5182fc2e875c [2020-11-28 07:35:55,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:35:55,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:35:55,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:35:55,149 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:35:55,155 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:35:55,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2020-11-28 07:35:55,235 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/data/4c29b0807/918a481e94c740af940b028369559029/FLAGb21c64160 [2020-11-28 07:35:55,719 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:35:55,719 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/sv-benchmarks/c/float-newlib/double_req_bl_1052c.c [2020-11-28 07:35:55,727 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/data/4c29b0807/918a481e94c740af940b028369559029/FLAGb21c64160 [2020-11-28 07:35:56,097 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/data/4c29b0807/918a481e94c740af940b028369559029 [2020-11-28 07:35:56,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:35:56,100 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:35:56,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:35:56,102 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:35:56,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:35:56,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:35:56" (1/1) ... [2020-11-28 07:35:56,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54e126c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:56, skipping insertion in model container [2020-11-28 07:35:56,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:35:56" (1/1) ... [2020-11-28 07:35:56,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:35:56,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:35:56,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:35:56,332 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:35:56,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:35:56,422 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:35:56,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:56 WrapperNode [2020-11-28 07:35:56,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:35:56,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:35:56,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:35:56,424 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:35:56,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:56" (1/1) ... [2020-11-28 07:35:56,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:56" (1/1) ... [2020-11-28 07:35:56,501 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:35:56,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:35:56,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:35:56,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:35:56,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:56" (1/1) ... [2020-11-28 07:35:56,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:56" (1/1) ... [2020-11-28 07:35:56,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:56" (1/1) ... [2020-11-28 07:35:56,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:56" (1/1) ... [2020-11-28 07:35:56,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:56" (1/1) ... [2020-11-28 07:35:56,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:56" (1/1) ... [2020-11-28 07:35:56,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:56" (1/1) ... [2020-11-28 07:35:56,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:35:56,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:35:56,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:35:56,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:35:56,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/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 07:35:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-28 07:35:56,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-28 07:35:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:35:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:35:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 07:35:56,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:35:56,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:35:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 07:35:56,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:35:57,973 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:35:57,974 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-28 07:35:57,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:35:57 BoogieIcfgContainer [2020-11-28 07:35:57,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:35:57,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:35:57,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:35:57,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:35:57,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:35:56" (1/3) ... [2020-11-28 07:35:57,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3e5535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:35:57, skipping insertion in model container [2020-11-28 07:35:57,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:56" (2/3) ... [2020-11-28 07:35:57,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3e5535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:35:57, skipping insertion in model container [2020-11-28 07:35:57,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:35:57" (3/3) ... [2020-11-28 07:35:57,983 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c.c [2020-11-28 07:35:57,994 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:35:57,998 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:35:58,009 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:35:58,033 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:35:58,033 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:35:58,033 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:35:58,033 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:35:58,033 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:35:58,034 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:35:58,034 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:35:58,034 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:35:58,044 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-11-28 07:35:58,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 07:35:58,048 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:35:58,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:35:58,048 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:35:58,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:35:58,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1930029915, now seen corresponding path program 1 times [2020-11-28 07:35:58,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:35:58,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1772657511] [2020-11-28 07:35:58,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/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 07:35:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:35:58,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 07:35:58,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:35:58,182 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 07:35:58,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:35:58,186 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 07:35:58,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1772657511] [2020-11-28 07:35:58,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:35:58,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 07:35:58,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412775253] [2020-11-28 07:35:58,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:35:58,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:35:58,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:35:58,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:35:58,209 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2020-11-28 07:35:58,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:35:58,228 INFO L93 Difference]: Finished difference Result 75 states and 119 transitions. [2020-11-28 07:35:58,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:35:58,229 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-28 07:35:58,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:35:58,238 INFO L225 Difference]: With dead ends: 75 [2020-11-28 07:35:58,239 INFO L226 Difference]: Without dead ends: 35 [2020-11-28 07:35:58,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:35:58,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-28 07:35:58,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-28 07:35:58,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-28 07:35:58,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 50 transitions. [2020-11-28 07:35:58,276 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 50 transitions. Word has length 11 [2020-11-28 07:35:58,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:35:58,276 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 50 transitions. [2020-11-28 07:35:58,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:35:58,277 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2020-11-28 07:35:58,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 07:35:58,278 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:35:58,278 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:35:58,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:35:58,494 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:35:58,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:35:58,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1310108990, now seen corresponding path program 1 times [2020-11-28 07:35:58,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:35:58,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660465355] [2020-11-28 07:35:58,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/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 07:35:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:35:58,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 07:35:58,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:35:58,750 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 07:35:58,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:35:58,843 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 07:35:58,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660465355] [2020-11-28 07:35:58,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:35:58,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-28 07:35:58,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989949015] [2020-11-28 07:35:58,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 07:35:58,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:35:58,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 07:35:58,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-28 07:35:58,847 INFO L87 Difference]: Start difference. First operand 35 states and 50 transitions. Second operand 8 states. [2020-11-28 07:35:59,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:35:59,354 INFO L93 Difference]: Finished difference Result 59 states and 74 transitions. [2020-11-28 07:35:59,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 07:35:59,357 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-11-28 07:35:59,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:35:59,358 INFO L225 Difference]: With dead ends: 59 [2020-11-28 07:35:59,359 INFO L226 Difference]: Without dead ends: 34 [2020-11-28 07:35:59,360 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 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 07:35:59,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-28 07:35:59,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2020-11-28 07:35:59,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-28 07:35:59,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2020-11-28 07:35:59,374 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 12 [2020-11-28 07:35:59,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:35:59,374 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2020-11-28 07:35:59,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 07:35:59,375 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2020-11-28 07:35:59,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 07:35:59,375 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:35:59,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:35:59,594 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 07:35:59,595 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:35:59,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:35:59,597 INFO L82 PathProgramCache]: Analyzing trace with hash -649381144, now seen corresponding path program 1 times [2020-11-28 07:35:59,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:35:59,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1787847861] [2020-11-28 07:35:59,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/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 07:35:59,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:35:59,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 07:35:59,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:35:59,857 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 07:35:59,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:36:00,732 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-11-28 07:36:01,056 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 07:36:01,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1787847861] [2020-11-28 07:36:01,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:36:01,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-28 07:36:01,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203294422] [2020-11-28 07:36:01,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 07:36:01,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:36:01,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 07:36:01,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:36:01,059 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 6 states. [2020-11-28 07:36:01,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:36:01,452 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2020-11-28 07:36:01,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:36:01,461 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-28 07:36:01,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:36:01,461 INFO L225 Difference]: With dead ends: 34 [2020-11-28 07:36:01,461 INFO L226 Difference]: Without dead ends: 22 [2020-11-28 07:36:01,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:36:01,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-28 07:36:01,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-28 07:36:01,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-28 07:36:01,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-11-28 07:36:01,469 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 15 [2020-11-28 07:36:01,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:36:01,470 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-11-28 07:36:01,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 07:36:01,470 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-11-28 07:36:01,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 07:36:01,471 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:36:01,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:36:01,676 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 07:36:01,676 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:36:01,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:36:01,677 INFO L82 PathProgramCache]: Analyzing trace with hash 461150674, now seen corresponding path program 1 times [2020-11-28 07:36:01,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:36:01,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [86541061] [2020-11-28 07:36:01,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/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 07:36:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:36:01,942 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:36:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:36:02,163 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:36:02,217 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-28 07:36:02,217 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:36:02,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-28 07:36:02,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:36:02 BoogieIcfgContainer [2020-11-28 07:36:02,450 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:36:02,450 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:36:02,450 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:36:02,450 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:36:02,451 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:35:57" (3/4) ... [2020-11-28 07:36:02,453 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 07:36:02,513 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b825902a-976d-4b2a-9b55-262a8ae46ea9/bin/utaipan/witness.graphml [2020-11-28 07:36:02,513 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:36:02,514 INFO L168 Benchmark]: Toolchain (without parser) took 6413.68 ms. Allocated memory was 67.1 MB in the beginning and 88.1 MB in the end (delta: 21.0 MB). Free memory was 46.8 MB in the beginning and 55.9 MB in the end (delta: -9.1 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:36:02,515 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 67.1 MB. Free memory is still 48.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:36:02,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.89 ms. Allocated memory is still 67.1 MB. Free memory was 46.6 MB in the beginning and 49.1 MB in the end (delta: -2.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:36:02,516 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.08 ms. Allocated memory is still 67.1 MB. Free memory was 49.1 MB in the beginning and 47.1 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:36:02,517 INFO L168 Benchmark]: Boogie Preprocessor took 82.23 ms. Allocated memory is still 67.1 MB. Free memory was 47.1 MB in the beginning and 45.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:36:02,518 INFO L168 Benchmark]: RCFGBuilder took 1389.19 ms. Allocated memory is still 67.1 MB. Free memory was 45.5 MB in the beginning and 40.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:36:02,519 INFO L168 Benchmark]: TraceAbstraction took 4472.70 ms. Allocated memory was 67.1 MB in the beginning and 88.1 MB in the end (delta: 21.0 MB). Free memory was 40.5 MB in the beginning and 59.4 MB in the end (delta: -18.9 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:36:02,519 INFO L168 Benchmark]: Witness Printer took 62.98 ms. Allocated memory is still 88.1 MB. Free memory was 59.4 MB in the beginning and 55.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:36:02,523 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 67.1 MB. Free memory is still 48.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 321.89 ms. Allocated memory is still 67.1 MB. Free memory was 46.6 MB in the beginning and 49.1 MB in the end (delta: -2.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.08 ms. Allocated memory is still 67.1 MB. Free memory was 49.1 MB in the beginning and 47.1 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 82.23 ms. Allocated memory is still 67.1 MB. Free memory was 47.1 MB in the beginning and 45.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1389.19 ms. Allocated memory is still 67.1 MB. Free memory was 45.5 MB in the beginning and 40.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4472.70 ms. Allocated memory was 67.1 MB in the beginning and 88.1 MB in the end (delta: 21.0 MB). Free memory was 40.5 MB in the beginning and 59.4 MB in the end (delta: -18.9 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Witness Printer took 62.98 ms. Allocated memory is still 88.1 MB. Free memory was 59.4 MB in the beginning and 55.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 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: [L16] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L100] double x = -0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND TRUE j0 < 20 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND TRUE j0 < 0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L30] COND TRUE huge_floor + x > 0.0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L31] COND FALSE !(i0 >= 0) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L33] COND TRUE ((i0 & 0x7fffffff) | i1) != 0 [L34] i0 = 0xbff00000 [L35] i1 = 0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L73] ieee_double_shape_type iw_u; [L74] iw_u.parts.msw = (i0) [L75] iw_u.parts.lsw = (i1) [L76] EXPR iw_u.value [L76] (x) = iw_u.value [L78] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L101] double res = floor_double(x); [L104] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L104] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L3] __assert_fail("0", "double_req_bl_1052c.c", 3, "reach_error") VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 87 SDtfs, 105 SDslu, 59 SDs, 0 SdLazy, 30 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 70 ConstructedInterpolants, 5 QuantifiedInterpolants, 3734 SizeOfPredicates, 11 NumberOfNonLiveVariables, 147 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...