./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1210.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1210.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85e5b86abce931d95696fba33e25199d528f9f0e ..................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1210.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85e5b86abce931d95696fba33e25199d528f9f0e ........................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-10-24 23:16:56,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:16:56,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:16:56,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:16:56,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:16:56,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:16:56,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:16:56,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:16:56,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:16:56,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:16:56,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:16:56,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:16:56,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:16:56,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:16:56,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:16:56,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:16:56,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:16:56,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:16:56,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:16:56,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:16:56,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:16:56,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:16:56,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:16:56,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:16:56,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:16:56,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:16:56,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:16:56,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:16:56,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:16:56,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:16:56,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:16:56,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:16:56,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:16:56,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:16:56,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:16:56,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:16:56,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:16:56,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:16:56,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:16:56,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:16:56,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:16:56,290 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:16:56,361 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:16:56,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:16:56,364 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:16:56,364 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:16:56,365 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:16:56,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:16:56,365 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:16:56,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:16:56,366 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:16:56,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:16:56,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:16:56,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:16:56,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:16:56,368 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:16:56,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:16:56,369 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:16:56,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:16:56,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:16:56,370 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:16:56,370 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:16:56,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:16:56,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:16:56,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:16:56,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:16:56,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:16:56,372 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:16:56,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:16:56,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:16:56,373 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:16:56,373 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85e5b86abce931d95696fba33e25199d528f9f0e [2020-10-24 23:16:56,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:16:56,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:16:56,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:16:56,851 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:16:56,852 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:16:56,853 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2020-10-24 23:16:56,935 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5529e693c/f215e099f8814a149cd4f38cc29626ec/FLAGccd76762a [2020-10-24 23:16:57,552 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:16:57,552 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2020-10-24 23:16:57,560 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5529e693c/f215e099f8814a149cd4f38cc29626ec/FLAGccd76762a [2020-10-24 23:16:57,914 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5529e693c/f215e099f8814a149cd4f38cc29626ec [2020-10-24 23:16:57,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:16:57,926 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:16:57,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:16:57,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:16:57,932 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:16:57,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:16:57" (1/1) ... [2020-10-24 23:16:57,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d2b45d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:57, skipping insertion in model container [2020-10-24 23:16:57,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:16:57" (1/1) ... [2020-10-24 23:16:57,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:16:57,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:16:58,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:16:58,179 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:16:58,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:16:58,274 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:16:58,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:58 WrapperNode [2020-10-24 23:16:58,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:16:58,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:16:58,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:16:58,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:16:58,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:58" (1/1) ... [2020-10-24 23:16:58,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:58" (1/1) ... [2020-10-24 23:16:58,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:16:58,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:16:58,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:16:58,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:16:58,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:58" (1/1) ... [2020-10-24 23:16:58,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:58" (1/1) ... [2020-10-24 23:16:58,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:58" (1/1) ... [2020-10-24 23:16:58,409 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:58" (1/1) ... [2020-10-24 23:16:58,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:58" (1/1) ... [2020-10-24 23:16:58,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:58" (1/1) ... [2020-10-24 23:16:58,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:58" (1/1) ... [2020-10-24 23:16:58,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:16:58,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:16:58,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:16:58,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:16:58,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:16:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:16:58,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:16:58,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:16:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:16:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:16:58,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:16:58,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:16:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:16:58,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:16:59,354 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:16:59,355 INFO L298 CfgBuilder]: Removed 32 assume(true) statements. [2020-10-24 23:16:59,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:16:59 BoogieIcfgContainer [2020-10-24 23:16:59,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:16:59,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:16:59,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:16:59,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:16:59,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:16:57" (1/3) ... [2020-10-24 23:16:59,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b23f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:16:59, skipping insertion in model container [2020-10-24 23:16:59,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:16:58" (2/3) ... [2020-10-24 23:16:59,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b23f48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:16:59, skipping insertion in model container [2020-10-24 23:16:59,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:16:59" (3/3) ... [2020-10-24 23:16:59,366 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2020-10-24 23:16:59,378 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:16:59,383 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:16:59,396 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:16:59,431 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:16:59,431 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:16:59,432 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:16:59,432 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:16:59,432 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:16:59,432 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:16:59,433 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:16:59,433 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:16:59,448 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-10-24 23:16:59,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 23:16:59,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:16:59,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:16:59,456 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:16:59,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:16:59,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1560975081, now seen corresponding path program 1 times [2020-10-24 23:16:59,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:16:59,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671179589] [2020-10-24 23:16:59,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:16:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:16:59,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:16:59,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671179589] [2020-10-24 23:16:59,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:16:59,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:16:59,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3609400] [2020-10-24 23:16:59,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:16:59,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:16:59,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:16:59,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:16:59,662 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-10-24 23:16:59,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:16:59,688 INFO L93 Difference]: Finished difference Result 87 states and 139 transitions. [2020-10-24 23:16:59,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:16:59,689 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-10-24 23:16:59,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:16:59,702 INFO L225 Difference]: With dead ends: 87 [2020-10-24 23:16:59,703 INFO L226 Difference]: Without dead ends: 41 [2020-10-24 23:16:59,706 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:16:59,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-24 23:16:59,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-24 23:16:59,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-24 23:16:59,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2020-10-24 23:16:59,746 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 13 [2020-10-24 23:16:59,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:16:59,747 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2020-10-24 23:16:59,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:16:59,747 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2020-10-24 23:16:59,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 23:16:59,748 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:16:59,749 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:16:59,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:16:59,749 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:16:59,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:16:59,750 INFO L82 PathProgramCache]: Analyzing trace with hash -11965906, now seen corresponding path program 1 times [2020-10-24 23:16:59,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:16:59,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375182085] [2020-10-24 23:16:59,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:16:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:16:59,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:16:59,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375182085] [2020-10-24 23:16:59,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:16:59,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-24 23:16:59,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239425385] [2020-10-24 23:16:59,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-24 23:16:59,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:16:59,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-24 23:16:59,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 23:16:59,895 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 3 states. [2020-10-24 23:16:59,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:16:59,929 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2020-10-24 23:16:59,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 23:16:59,931 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-10-24 23:16:59,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:16:59,933 INFO L225 Difference]: With dead ends: 44 [2020-10-24 23:16:59,933 INFO L226 Difference]: Without dead ends: 41 [2020-10-24 23:16:59,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 23:16:59,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-24 23:16:59,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-24 23:16:59,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-24 23:16:59,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2020-10-24 23:16:59,950 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 15 [2020-10-24 23:16:59,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:16:59,951 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2020-10-24 23:16:59,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-24 23:16:59,952 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2020-10-24 23:16:59,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-24 23:16:59,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:16:59,955 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:16:59,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:16:59,956 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:16:59,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:16:59,958 INFO L82 PathProgramCache]: Analyzing trace with hash -371067880, now seen corresponding path program 1 times [2020-10-24 23:16:59,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:16:59,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851059055] [2020-10-24 23:16:59,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:17:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:17:00,073 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:17:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:17:00,173 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:17:00,223 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:17:00,224 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:17:00,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 23:17:00,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:17:00 BoogieIcfgContainer [2020-10-24 23:17:00,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:17:00,292 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:17:00,292 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:17:00,293 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:17:00,294 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:16:59" (3/4) ... [2020-10-24 23:17:00,297 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:17:00,298 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:17:00,303 INFO L168 Benchmark]: Toolchain (without parser) took 2378.57 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.6 MB in the beginning and 44.1 MB in the end (delta: -8.5 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:00,304 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 58.7 MB. Free memory is still 41.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:17:00,306 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.21 ms. Allocated memory is still 58.7 MB. Free memory was 35.0 MB in the beginning and 42.2 MB in the end (delta: -7.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:00,314 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.32 ms. Allocated memory is still 58.7 MB. Free memory was 42.0 MB in the beginning and 39.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:00,315 INFO L168 Benchmark]: Boogie Preprocessor took 97.05 ms. Allocated memory is still 58.7 MB. Free memory was 39.8 MB in the beginning and 37.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:00,316 INFO L168 Benchmark]: RCFGBuilder took 885.42 ms. Allocated memory is still 58.7 MB. Free memory was 37.8 MB in the beginning and 25.5 MB in the end (delta: 12.4 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:00,319 INFO L168 Benchmark]: TraceAbstraction took 933.17 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 25.2 MB in the beginning and 44.1 MB in the end (delta: -18.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:17:00,320 INFO L168 Benchmark]: Witness Printer took 6.12 ms. Allocated memory is still 71.3 MB. Free memory is still 44.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:17:00,333 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 58.7 MB. Free memory is still 41.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 348.21 ms. Allocated memory is still 58.7 MB. Free memory was 35.0 MB in the beginning and 42.2 MB in the end (delta: -7.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.32 ms. Allocated memory is still 58.7 MB. Free memory was 42.0 MB in the beginning and 39.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 97.05 ms. Allocated memory is still 58.7 MB. Free memory was 39.8 MB in the beginning and 37.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 885.42 ms. Allocated memory is still 58.7 MB. Free memory was 37.8 MB in the beginning and 25.5 MB in the end (delta: 12.4 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 933.17 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 25.2 MB in the beginning and 44.1 MB in the end (delta: -18.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.12 ms. Allocated memory is still 71.3 MB. Free memory is still 44.1 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 someBinaryDOUBLEComparisonOperation at line 17, overapproximation of someBinaryArithmeticDOUBLEoperation at line 118, overapproximation of bitwiseAnd at line 35. Possible FailurePath: [L19] static const double one_modf = 1.0; VAL [one_modf=1] [L118] double x = 0.0 / 0.0; [L119] double iptr; [L22] __int32_t i0, i1, j0; [L23] __uint32_t i; VAL [one_modf=1] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [one_modf=1] [L31] COND TRUE j0 < 20 VAL [one_modf=1] [L32] COND TRUE j0 < 0 VAL [one_modf=1] [L34] ieee_double_shape_type iw_u; [L35] iw_u.parts.msw = (i0 & 0x80000000) [L36] iw_u.parts.lsw = (0) [L37] EXPR iw_u.value [L37] (*iptr) = iw_u.value [L39] return x; VAL [one_modf=1] [L120] double res = modf_double(x, &iptr); [L123] EXPR \read(iptr) [L17] return x != x; VAL [one_modf=1] [L123] isnan_double(iptr) && !isnan_double(res) [L17] return x != x; VAL [one_modf=1] [L123] isnan_double(iptr) && !isnan_double(res) VAL [one_modf=1] [L123] COND TRUE isnan_double(iptr) && !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_1210.c", 3, "reach_error") VAL [one_modf=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 95 SDtfs, 0 SDslu, 40 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 354 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2020-10-24 23:17:02,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:17:02,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:17:02,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:17:02,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:17:02,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:17:02,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:17:02,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:17:02,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:17:02,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:17:02,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:17:02,973 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:17:02,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:17:02,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:17:02,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:17:02,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:17:02,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:17:02,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:17:02,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:17:02,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:17:02,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:17:03,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:17:03,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:17:03,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:17:03,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:17:03,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:17:03,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:17:03,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:17:03,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:17:03,018 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:17:03,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:17:03,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:17:03,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:17:03,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:17:03,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:17:03,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:17:03,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:17:03,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:17:03,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:17:03,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:17:03,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:17:03,027 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:17:03,065 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:17:03,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:17:03,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:17:03,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:17:03,069 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:17:03,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:17:03,069 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:17:03,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:17:03,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:17:03,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:17:03,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:17:03,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:17:03,070 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:17:03,071 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:17:03,071 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:17:03,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:17:03,071 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:17:03,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:17:03,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:17:03,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:17:03,073 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:17:03,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:17:03,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:17:03,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:17:03,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:17:03,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:17:03,075 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:17:03,075 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:17:03,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:17:03,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:17:03,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:17:03,075 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85e5b86abce931d95696fba33e25199d528f9f0e [2020-10-24 23:17:03,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:17:03,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:17:03,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:17:03,521 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:17:03,521 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:17:03,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2020-10-24 23:17:03,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e8d9423f/59167a01d07b4a019c2e09e9e8f91342/FLAGfa07b69a7 [2020-10-24 23:17:04,256 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:17:04,257 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2020-10-24 23:17:04,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e8d9423f/59167a01d07b4a019c2e09e9e8f91342/FLAGfa07b69a7 [2020-10-24 23:17:04,623 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e8d9423f/59167a01d07b4a019c2e09e9e8f91342 [2020-10-24 23:17:04,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:17:04,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:17:04,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:17:04,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:17:04,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:17:04,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:17:04" (1/1) ... [2020-10-24 23:17:04,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@688422ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:04, skipping insertion in model container [2020-10-24 23:17:04,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:17:04" (1/1) ... [2020-10-24 23:17:04,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:17:04,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:17:04,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:17:04,897 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:17:04,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:17:04,963 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:17:04,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:04 WrapperNode [2020-10-24 23:17:04,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:17:04,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:17:04,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:17:04,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:17:04,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:04" (1/1) ... [2020-10-24 23:17:04,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:04" (1/1) ... [2020-10-24 23:17:05,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:17:05,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:17:05,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:17:05,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:17:05,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:04" (1/1) ... [2020-10-24 23:17:05,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:04" (1/1) ... [2020-10-24 23:17:05,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:04" (1/1) ... [2020-10-24 23:17:05,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:04" (1/1) ... [2020-10-24 23:17:05,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:04" (1/1) ... [2020-10-24 23:17:05,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:04" (1/1) ... [2020-10-24 23:17:05,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:04" (1/1) ... [2020-10-24 23:17:05,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:17:05,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:17:05,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:17:05,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:17:05,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:17:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-10-24 23:17:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-10-24 23:17:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:17:05,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:17:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:17:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:17:05,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:17:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:17:05,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:17:06,642 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:17:06,643 INFO L298 CfgBuilder]: Removed 32 assume(true) statements. [2020-10-24 23:17:06,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:17:06 BoogieIcfgContainer [2020-10-24 23:17:06,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:17:06,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:17:06,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:17:06,651 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:17:06,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:17:04" (1/3) ... [2020-10-24 23:17:06,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625138c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:17:06, skipping insertion in model container [2020-10-24 23:17:06,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:17:04" (2/3) ... [2020-10-24 23:17:06,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625138c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:17:06, skipping insertion in model container [2020-10-24 23:17:06,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:17:06" (3/3) ... [2020-10-24 23:17:06,655 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2020-10-24 23:17:06,667 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:17:06,672 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:17:06,683 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:17:06,708 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:17:06,709 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:17:06,709 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:17:06,709 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:17:06,709 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:17:06,709 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:17:06,709 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:17:06,709 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:17:06,724 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-10-24 23:17:06,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 23:17:06,729 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:17:06,730 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:17:06,730 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:17:06,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:17:06,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1560975081, now seen corresponding path program 1 times [2020-10-24 23:17:06,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:17:06,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722006917] [2020-10-24 23:17:06,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:17:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:17:06,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:17:06,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:17:06,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:06,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:17:06,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:06,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722006917] [2020-10-24 23:17:06,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:17:06,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:17:06,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004308593] [2020-10-24 23:17:06,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:17:06,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:17:06,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:17:06,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:17:06,962 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2020-10-24 23:17:06,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:17:06,988 INFO L93 Difference]: Finished difference Result 87 states and 139 transitions. [2020-10-24 23:17:06,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:17:06,990 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-10-24 23:17:06,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:17:07,001 INFO L225 Difference]: With dead ends: 87 [2020-10-24 23:17:07,002 INFO L226 Difference]: Without dead ends: 41 [2020-10-24 23:17:07,005 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:17:07,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-24 23:17:07,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-24 23:17:07,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-24 23:17:07,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2020-10-24 23:17:07,045 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 13 [2020-10-24 23:17:07,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:17:07,046 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2020-10-24 23:17:07,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:17:07,046 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2020-10-24 23:17:07,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 23:17:07,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:17:07,047 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:17:07,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:17:07,261 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:17:07,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:17:07,262 INFO L82 PathProgramCache]: Analyzing trace with hash -11965906, now seen corresponding path program 1 times [2020-10-24 23:17:07,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:17:07,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [657452888] [2020-10-24 23:17:07,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:17:07,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:17:07,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-24 23:17:07,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:17:07,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:07,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:17:07,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:07,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [657452888] [2020-10-24 23:17:07,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:17:07,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 23:17:07,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618936214] [2020-10-24 23:17:07,741 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 23:17:07,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:17:07,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 23:17:07,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-24 23:17:07,743 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 8 states. [2020-10-24 23:17:08,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:17:08,481 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2020-10-24 23:17:08,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 23:17:08,484 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-10-24 23:17:08,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:17:08,485 INFO L225 Difference]: With dead ends: 48 [2020-10-24 23:17:08,485 INFO L226 Difference]: Without dead ends: 19 [2020-10-24 23:17:08,487 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-24 23:17:08,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-24 23:17:08,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-24 23:17:08,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-24 23:17:08,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-10-24 23:17:08,492 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 15 [2020-10-24 23:17:08,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:17:08,493 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-10-24 23:17:08,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 23:17:08,493 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-10-24 23:17:08,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-24 23:17:08,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:17:08,501 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:17:08,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:17:08,717 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:17:08,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:17:08,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1834889353, now seen corresponding path program 1 times [2020-10-24 23:17:08,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:17:08,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520170629] [2020-10-24 23:17:08,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:17:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:17:09,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-24 23:17:09,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:17:09,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:09,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:17:09,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:17:09,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1520170629] [2020-10-24 23:17:09,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:17:09,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-24 23:17:09,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985982327] [2020-10-24 23:17:09,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-24 23:17:09,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:17:09,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-24 23:17:09,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 23:17:09,091 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 3 states. [2020-10-24 23:17:09,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:17:09,181 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-10-24 23:17:09,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 23:17:09,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-24 23:17:09,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:17:09,184 INFO L225 Difference]: With dead ends: 22 [2020-10-24 23:17:09,184 INFO L226 Difference]: Without dead ends: 19 [2020-10-24 23:17:09,185 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 23:17:09,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-24 23:17:09,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-24 23:17:09,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-24 23:17:09,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2020-10-24 23:17:09,201 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 17 [2020-10-24 23:17:09,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:17:09,202 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2020-10-24 23:17:09,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-24 23:17:09,202 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-10-24 23:17:09,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-24 23:17:09,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:17:09,203 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:17:09,404 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 23:17:09,405 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:17:09,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:17:09,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1046870301, now seen corresponding path program 1 times [2020-10-24 23:17:09,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:17:09,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494620442] [2020-10-24 23:17:09,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:17:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:17:09,948 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:17:10,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:17:10,567 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:17:10,685 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-24 23:17:10,685 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:17:10,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 23:17:10,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:17:10 BoogieIcfgContainer [2020-10-24 23:17:10,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:17:10,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:17:10,935 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:17:10,935 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:17:10,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:17:06" (3/4) ... [2020-10-24 23:17:10,937 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-24 23:17:10,998 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:17:10,998 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:17:11,000 INFO L168 Benchmark]: Toolchain (without parser) took 6370.33 ms. Allocated memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: 23.1 MB). Free memory was 23.2 MB in the beginning and 35.7 MB in the end (delta: -12.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:11,001 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 46.1 MB. Free memory was 30.9 MB in the beginning and 30.8 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:17:11,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.32 ms. Allocated memory is still 46.1 MB. Free memory was 22.6 MB in the beginning and 21.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:11,002 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.32 ms. Allocated memory is still 46.1 MB. Free memory was 21.2 MB in the beginning and 30.3 MB in the end (delta: -9.1 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:11,003 INFO L168 Benchmark]: Boogie Preprocessor took 81.57 ms. Allocated memory is still 46.1 MB. Free memory was 30.3 MB in the beginning and 28.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:11,004 INFO L168 Benchmark]: RCFGBuilder took 1535.15 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 28.0 MB in the beginning and 33.7 MB in the end (delta: -5.7 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:11,005 INFO L168 Benchmark]: TraceAbstraction took 4286.93 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.4 MB in the beginning and 38.9 MB in the end (delta: -5.5 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:11,006 INFO L168 Benchmark]: Witness Printer took 63.39 ms. Allocated memory is still 69.2 MB. Free memory was 38.4 MB in the beginning and 35.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:17:11,011 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 46.1 MB. Free memory was 30.9 MB in the beginning and 30.8 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 329.32 ms. Allocated memory is still 46.1 MB. Free memory was 22.6 MB in the beginning and 21.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.32 ms. Allocated memory is still 46.1 MB. Free memory was 21.2 MB in the beginning and 30.3 MB in the end (delta: -9.1 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.57 ms. Allocated memory is still 46.1 MB. Free memory was 30.3 MB in the beginning and 28.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1535.15 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 28.0 MB in the beginning and 33.7 MB in the end (delta: -5.7 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4286.93 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.4 MB in the beginning and 38.9 MB in the end (delta: -5.5 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Witness Printer took 63.39 ms. Allocated memory is still 69.2 MB. Free memory was 38.4 MB in the beginning and 35.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] static const double one_modf = 1.0; VAL [one_modf=1.0] [L118] double x = 0.0 / 0.0; [L119] double iptr; [L22] __int32_t i0, i1, j0; [L23] __uint32_t i; VAL [one_modf=1.0] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (i1) = ew_u.parts.lsw [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [one_modf=1.0] [L31] COND FALSE !(j0 < 20) VAL [one_modf=1.0] [L67] COND TRUE j0 > 51 [L68] __uint32_t high; [L69] *iptr = x * one_modf VAL [one_modf=1.0] [L71] ieee_double_shape_type gh_u; [L72] gh_u.value = (x) [L73] EXPR gh_u.parts.msw [L73] (high) = gh_u.parts.msw [L76] ieee_double_shape_type iw_u; [L77] iw_u.parts.msw = (high & 0x80000000) [L78] iw_u.parts.lsw = (0) [L79] EXPR iw_u.value [L79] (x) = iw_u.value [L81] return x; VAL [one_modf=1.0] [L120] double res = modf_double(x, &iptr); [L123] EXPR \read(iptr) [L17] return x != x; VAL [one_modf=1.0] [L123] isnan_double(iptr) && !isnan_double(res) [L17] return x != x; VAL [one_modf=1.0] [L123] isnan_double(iptr) && !isnan_double(res) VAL [one_modf=1.0] [L123] COND TRUE isnan_double(iptr) && !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_1210.c", 3, "reach_error") VAL [one_modf=1.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.1s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 82 SDtfs, 50 SDslu, 35 SDs, 0 SdLazy, 18 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 5 QuantifiedInterpolants, 2708 SizeOfPredicates, 8 NumberOfNonLiveVariables, 209 ConjunctsInSsa, 11 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...