./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 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4632d05eeeec8083fb0c38c2d70eb822a2624ecb ......................................................................................................................................................................................................................................................................................................................................... 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 -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4632d05eeeec8083fb0c38c2d70eb822a2624ecb .................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-30f4e4a [2019-11-27 23:45:25,154 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:45:25,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:45:25,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:45:25,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:45:25,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:45:25,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:45:25,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:45:25,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:45:25,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:45:25,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:45:25,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:45:25,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:45:25,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:45:25,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:45:25,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:45:25,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:45:25,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:45:25,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:45:25,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:45:25,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:45:25,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:45:25,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:45:25,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:45:25,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:45:25,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:45:25,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:45:25,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:45:25,242 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:45:25,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:45:25,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:45:25,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:45:25,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:45:25,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:45:25,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:45:25,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:45:25,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:45:25,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:45:25,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:45:25,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:45:25,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:45:25,254 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:45:25,281 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:45:25,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:45:25,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:45:25,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:45:25,283 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:45:25,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:45:25,284 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:45:25,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:45:25,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:45:25,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:45:25,285 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:45:25,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:45:25,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:45:25,286 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:45:25,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:45:25,286 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:45:25,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:45:25,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:45:25,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:45:25,288 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:45:25,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:45:25,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:45:25,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:45:25,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:45:25,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:45:25,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:45:25,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:45:25,290 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:45:25,290 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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(__VERIFIER_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 -> 4632d05eeeec8083fb0c38c2d70eb822a2624ecb [2019-11-27 23:45:25,600 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:45:25,613 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:45:25,617 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:45:25,618 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:45:25,619 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:45:25,620 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-11-27 23:45:25,678 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb784e6ca/ba25f9eb9c4342479314070661a365c7/FLAGcd10a6e95 [2019-11-27 23:45:26,172 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:45:26,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-11-27 23:45:26,186 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb784e6ca/ba25f9eb9c4342479314070661a365c7/FLAGcd10a6e95 [2019-11-27 23:45:26,513 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb784e6ca/ba25f9eb9c4342479314070661a365c7 [2019-11-27 23:45:26,517 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:45:26,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:45:26,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:45:26,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:45:26,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:45:26,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:45:26" (1/1) ... [2019-11-27 23:45:26,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69e4995b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:26, skipping insertion in model container [2019-11-27 23:45:26,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:45:26" (1/1) ... [2019-11-27 23:45:26,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:45:26,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:45:26,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:45:26,894 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:45:26,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:45:26,946 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:45:26,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:26 WrapperNode [2019-11-27 23:45:26,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:45:26,947 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:45:26,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:45:26,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:45:26,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:26" (1/1) ... [2019-11-27 23:45:26,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:26" (1/1) ... [2019-11-27 23:45:27,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:45:27,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:45:27,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:45:27,002 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:45:27,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:26" (1/1) ... [2019-11-27 23:45:27,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:26" (1/1) ... [2019-11-27 23:45:27,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:26" (1/1) ... [2019-11-27 23:45:27,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:26" (1/1) ... [2019-11-27 23:45:27,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:26" (1/1) ... [2019-11-27 23:45:27,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:26" (1/1) ... [2019-11-27 23:45:27,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:26" (1/1) ... [2019-11-27 23:45:27,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:45:27,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:45:27,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:45:27,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:45:27,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:26" (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 [2019-11-27 23:45:27,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-27 23:45:27,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 23:45:27,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-27 23:45:27,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:45:27,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:45:27,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 23:45:27,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:45:27,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:45:27,655 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:45:27,655 INFO L297 CfgBuilder]: Removed 30 assume(true) statements. [2019-11-27 23:45:27,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:27 BoogieIcfgContainer [2019-11-27 23:45:27,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:45:27,658 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:45:27,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:45:27,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:45:27,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:45:26" (1/3) ... [2019-11-27 23:45:27,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8ef2d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:45:27, skipping insertion in model container [2019-11-27 23:45:27,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:26" (2/3) ... [2019-11-27 23:45:27,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8ef2d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:45:27, skipping insertion in model container [2019-11-27 23:45:27,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:27" (3/3) ... [2019-11-27 23:45:27,669 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2019-11-27 23:45:27,680 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:45:27,690 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:45:27,702 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:45:27,726 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:45:27,727 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:45:27,727 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:45:27,727 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:45:27,728 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:45:27,728 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:45:27,728 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:45:27,728 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:45:27,743 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-11-27 23:45:27,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-27 23:45:27,751 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:27,752 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:27,753 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:27,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:27,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1560975081, now seen corresponding path program 1 times [2019-11-27 23:45:27,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:45:27,766 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802644292] [2019-11-27 23:45:27,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:45:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:27,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:27,892 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802644292] [2019-11-27 23:45:27,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:27,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 23:45:27,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796476994] [2019-11-27 23:45:27,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:45:27,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:45:27,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:45:27,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:45:27,919 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2019-11-27 23:45:27,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:27,947 INFO L93 Difference]: Finished difference Result 86 states and 138 transitions. [2019-11-27 23:45:27,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:45:27,949 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-11-27 23:45:27,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:27,962 INFO L225 Difference]: With dead ends: 86 [2019-11-27 23:45:27,962 INFO L226 Difference]: Without dead ends: 41 [2019-11-27 23:45:27,966 INFO L630 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 [2019-11-27 23:45:27,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-27 23:45:28,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-11-27 23:45:28,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-27 23:45:28,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2019-11-27 23:45:28,013 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 13 [2019-11-27 23:45:28,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:28,014 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2019-11-27 23:45:28,014 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:45:28,014 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2019-11-27 23:45:28,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-27 23:45:28,015 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:28,016 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:28,016 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:28,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:28,017 INFO L82 PathProgramCache]: Analyzing trace with hash -11965906, now seen corresponding path program 1 times [2019-11-27 23:45:28,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:45:28,018 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060683055] [2019-11-27 23:45:28,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:45:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:28,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:28,173 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060683055] [2019-11-27 23:45:28,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:28,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-27 23:45:28,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636667567] [2019-11-27 23:45:28,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 23:45:28,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:45:28,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 23:45:28,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 23:45:28,178 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 3 states. [2019-11-27 23:45:28,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:28,213 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2019-11-27 23:45:28,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 23:45:28,215 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-11-27 23:45:28,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:28,216 INFO L225 Difference]: With dead ends: 44 [2019-11-27 23:45:28,216 INFO L226 Difference]: Without dead ends: 41 [2019-11-27 23:45:28,219 INFO L630 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 [2019-11-27 23:45:28,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-27 23:45:28,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-11-27 23:45:28,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-27 23:45:28,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 45 transitions. [2019-11-27 23:45:28,228 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 45 transitions. Word has length 15 [2019-11-27 23:45:28,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:28,229 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 45 transitions. [2019-11-27 23:45:28,229 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 23:45:28,230 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 45 transitions. [2019-11-27 23:45:28,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-27 23:45:28,232 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:28,232 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:28,232 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:28,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:28,233 INFO L82 PathProgramCache]: Analyzing trace with hash -371067880, now seen corresponding path program 1 times [2019-11-27 23:45:28,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:45:28,233 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114464645] [2019-11-27 23:45:28,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:45:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:45:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:45:28,399 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 23:45:28,400 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:45:28,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:45:28 BoogieIcfgContainer [2019-11-27 23:45:28,444 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:45:28,444 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:45:28,444 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:45:28,444 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:45:28,445 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:27" (3/4) ... [2019-11-27 23:45:28,449 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 23:45:28,449 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:45:28,452 INFO L168 Benchmark]: Toolchain (without parser) took 1933.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -95.8 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:28,453 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:45:28,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 427.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:28,455 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:45:28,455 INFO L168 Benchmark]: Boogie Preprocessor took 44.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:28,456 INFO L168 Benchmark]: RCFGBuilder took 610.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:28,457 INFO L168 Benchmark]: TraceAbstraction took 786.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:28,458 INFO L168 Benchmark]: Witness Printer took 5.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:45:28,462 INFO L335 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 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 427.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 610.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 786.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 116, overapproximation of bitwiseAnd at line 33. Possible FailurePath: [L17] static const double one_modf = 1.0; VAL [one_modf=1] [L116] double x = 0.0 / 0.0; [L117] double iptr; [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [one_modf=1] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [one_modf=1] [L29] COND TRUE j0 < 20 VAL [one_modf=1] [L30] COND TRUE j0 < 0 VAL [one_modf=1] [L32] ieee_double_shape_type iw_u; [L33] iw_u.parts.msw = (i0 & 0x80000000) [L34] iw_u.parts.lsw = (0) [L35] EXPR iw_u.value [L35] (*iptr) = iw_u.value [L37] return x; VAL [one_modf=1] [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) [L15] return x != x; VAL [one_modf=1] [L121] isnan_double(iptr) && !isnan_double(res) [L15] return x != x; VAL [one_modf=1] [L121] isnan_double(iptr) && !isnan_double(res) VAL [one_modf=1] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [one_modf=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 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=44occurred 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, 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 0.1.24-30f4e4a [2019-11-27 23:45:30,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:45:30,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:45:30,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:45:30,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:45:30,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:45:30,538 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:45:30,548 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:45:30,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:45:30,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:45:30,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:45:30,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:45:30,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:45:30,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:45:30,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:45:30,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:45:30,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:45:30,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:45:30,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:45:30,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:45:30,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:45:30,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:45:30,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:45:30,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:45:30,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:45:30,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:45:30,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:45:30,577 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:45:30,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:45:30,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:45:30,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:45:30,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:45:30,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:45:30,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:45:30,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:45:30,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:45:30,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:45:30,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:45:30,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:45:30,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:45:30,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:45:30,587 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 23:45:30,601 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:45:30,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:45:30,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:45:30,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:45:30,603 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:45:30,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:45:30,604 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:45:30,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:45:30,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:45:30,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:45:30,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:45:30,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:45:30,606 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 23:45:30,606 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 23:45:30,606 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:45:30,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:45:30,607 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:45:30,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:45:30,608 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:45:30,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:45:30,608 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:45:30,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:45:30,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:45:30,609 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:45:30,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:45:30,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:45:30,610 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 23:45:30,610 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 23:45:30,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:45:30,611 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 23:45:30,611 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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(__VERIFIER_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 -> 4632d05eeeec8083fb0c38c2d70eb822a2624ecb [2019-11-27 23:45:30,936 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:45:30,963 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:45:30,967 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:45:30,970 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:45:30,971 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:45:30,973 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-11-27 23:45:31,041 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ed8f33a1/2050ec16754a48339b8e5dcd6c43d3a2/FLAG66fa9d1d2 [2019-11-27 23:45:31,539 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:45:31,540 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1210.c [2019-11-27 23:45:31,550 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ed8f33a1/2050ec16754a48339b8e5dcd6c43d3a2/FLAG66fa9d1d2 [2019-11-27 23:45:31,899 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ed8f33a1/2050ec16754a48339b8e5dcd6c43d3a2 [2019-11-27 23:45:31,903 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:45:31,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:45:31,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:45:31,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:45:31,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:45:31,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:45:31" (1/1) ... [2019-11-27 23:45:31,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e432ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:31, skipping insertion in model container [2019-11-27 23:45:31,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:45:31" (1/1) ... [2019-11-27 23:45:31,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:45:31,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:45:32,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:45:32,198 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:45:32,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:45:32,328 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:45:32,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:32 WrapperNode [2019-11-27 23:45:32,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:45:32,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:45:32,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:45:32,330 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:45:32,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:32" (1/1) ... [2019-11-27 23:45:32,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:32" (1/1) ... [2019-11-27 23:45:32,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:45:32,394 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:45:32,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:45:32,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:45:32,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:32" (1/1) ... [2019-11-27 23:45:32,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:32" (1/1) ... [2019-11-27 23:45:32,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:32" (1/1) ... [2019-11-27 23:45:32,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:32" (1/1) ... [2019-11-27 23:45:32,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:32" (1/1) ... [2019-11-27 23:45:32,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:32" (1/1) ... [2019-11-27 23:45:32,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:32" (1/1) ... [2019-11-27 23:45:32,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:45:32,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:45:32,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:45:32,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:45:32,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:32" (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 [2019-11-27 23:45:32,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-27 23:45:32,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-27 23:45:32,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:45:32,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-27 23:45:32,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:45:32,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:45:32,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-27 23:45:32,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:45:33,629 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:45:33,630 INFO L297 CfgBuilder]: Removed 30 assume(true) statements. [2019-11-27 23:45:33,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:33 BoogieIcfgContainer [2019-11-27 23:45:33,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:45:33,632 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:45:33,632 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:45:33,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:45:33,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:45:31" (1/3) ... [2019-11-27 23:45:33,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb2a14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:45:33, skipping insertion in model container [2019-11-27 23:45:33,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:32" (2/3) ... [2019-11-27 23:45:33,637 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb2a14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:45:33, skipping insertion in model container [2019-11-27 23:45:33,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:33" (3/3) ... [2019-11-27 23:45:33,639 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1210.c [2019-11-27 23:45:33,648 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:45:33,655 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:45:33,667 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:45:33,690 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:45:33,690 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:45:33,690 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:45:33,691 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:45:33,691 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:45:33,691 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:45:33,691 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:45:33,691 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:45:33,704 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-11-27 23:45:33,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-27 23:45:33,710 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:33,710 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:33,711 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:33,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:33,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1560975081, now seen corresponding path program 1 times [2019-11-27 23:45:33,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:45:33,728 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554555607] [2019-11-27 23:45:33,729 INFO L94 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 [2019-11-27 23:45:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:33,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-27 23:45:33,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:45:33,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:33,899 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:45:33,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:33,905 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554555607] [2019-11-27 23:45:33,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:33,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-27 23:45:33,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548440375] [2019-11-27 23:45:33,914 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:45:33,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:45:33,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:45:33,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:45:33,931 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2019-11-27 23:45:33,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:33,955 INFO L93 Difference]: Finished difference Result 86 states and 138 transitions. [2019-11-27 23:45:33,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:45:33,957 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-11-27 23:45:33,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:33,970 INFO L225 Difference]: With dead ends: 86 [2019-11-27 23:45:33,970 INFO L226 Difference]: Without dead ends: 41 [2019-11-27 23:45:33,974 INFO L630 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 [2019-11-27 23:45:33,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-27 23:45:34,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2019-11-27 23:45:34,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-11-27 23:45:34,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2019-11-27 23:45:34,016 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 13 [2019-11-27 23:45:34,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:34,016 INFO L462 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2019-11-27 23:45:34,016 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:45:34,017 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2019-11-27 23:45:34,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-27 23:45:34,018 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:34,018 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:34,232 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 23:45:34,233 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:34,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:34,233 INFO L82 PathProgramCache]: Analyzing trace with hash -11965906, now seen corresponding path program 1 times [2019-11-27 23:45:34,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:45:34,235 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110606709] [2019-11-27 23:45:34,235 INFO L94 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 [2019-11-27 23:45:34,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:34,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-27 23:45:34,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:45:34,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:34,513 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:45:34,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:34,679 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110606709] [2019-11-27 23:45:34,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:34,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-27 23:45:34,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112349308] [2019-11-27 23:45:34,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-27 23:45:34,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:45:34,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-27 23:45:34,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-27 23:45:34,683 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 8 states. [2019-11-27 23:45:35,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:35,552 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2019-11-27 23:45:35,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-27 23:45:35,554 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-11-27 23:45:35,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:35,555 INFO L225 Difference]: With dead ends: 48 [2019-11-27 23:45:35,555 INFO L226 Difference]: Without dead ends: 19 [2019-11-27 23:45:35,556 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-11-27 23:45:35,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-27 23:45:35,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-27 23:45:35,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-27 23:45:35,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-11-27 23:45:35,562 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 15 [2019-11-27 23:45:35,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:35,563 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-11-27 23:45:35,563 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-27 23:45:35,563 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-11-27 23:45:35,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-27 23:45:35,564 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:35,564 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:35,768 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-27 23:45:35,769 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:35,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:35,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1834889353, now seen corresponding path program 1 times [2019-11-27 23:45:35,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:45:35,773 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441494471] [2019-11-27 23:45:35,773 INFO L94 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 [2019-11-27 23:45:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:36,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-27 23:45:36,115 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:45:36,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:36,131 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:45:36,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:36,134 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441494471] [2019-11-27 23:45:36,134 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:36,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-11-27 23:45:36,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211025776] [2019-11-27 23:45:36,135 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-27 23:45:36,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:45:36,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-27 23:45:36,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-27 23:45:36,137 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 3 states. [2019-11-27 23:45:36,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:36,164 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-11-27 23:45:36,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 23:45:36,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-27 23:45:36,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:36,167 INFO L225 Difference]: With dead ends: 22 [2019-11-27 23:45:36,167 INFO L226 Difference]: Without dead ends: 19 [2019-11-27 23:45:36,167 INFO L630 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 [2019-11-27 23:45:36,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-27 23:45:36,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-27 23:45:36,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-27 23:45:36,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2019-11-27 23:45:36,173 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 17 [2019-11-27 23:45:36,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:36,174 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2019-11-27 23:45:36,174 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-27 23:45:36,174 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2019-11-27 23:45:36,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-27 23:45:36,175 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:36,175 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:36,389 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-27 23:45:36,390 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:36,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:36,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1046870301, now seen corresponding path program 1 times [2019-11-27 23:45:36,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:45:36,392 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635585551] [2019-11-27 23:45:36,392 INFO L94 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 [2019-11-27 23:45:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:45:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:45:37,443 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-27 23:45:37,443 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:45:37,644 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-27 23:45:37,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:45:37 BoogieIcfgContainer [2019-11-27 23:45:37,714 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:45:37,714 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:45:37,714 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:45:37,715 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:45:37,715 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:33" (3/4) ... [2019-11-27 23:45:37,718 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-27 23:45:37,832 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:45:37,833 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:45:37,835 INFO L168 Benchmark]: Toolchain (without parser) took 5929.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 957.7 MB in the beginning and 975.8 MB in the end (delta: -18.1 MB). Peak memory consumption was 118.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:37,836 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:45:37,838 INFO L168 Benchmark]: CACSL2BoogieTranslator took 423.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -169.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:37,838 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:45:37,839 INFO L168 Benchmark]: Boogie Preprocessor took 50.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:37,839 INFO L168 Benchmark]: RCFGBuilder took 1186.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:37,843 INFO L168 Benchmark]: TraceAbstraction took 4081.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.8 MB in the end (delta: 111.7 MB). Peak memory consumption was 111.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:37,843 INFO L168 Benchmark]: Witness Printer took 118.47 ms. Allocated memory is still 1.2 GB. Free memory is still 975.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:45:37,845 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 423.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -169.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1186.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.9 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4081.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.8 MB in the end (delta: 111.7 MB). Peak memory consumption was 111.7 MB. Max. memory is 11.5 GB. * Witness Printer took 118.47 ms. Allocated memory is still 1.2 GB. Free memory is still 975.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 122]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17] static const double one_modf = 1.0; VAL [one_modf=1.0] [L116] double x = 0.0 / 0.0; [L117] double iptr; [L20] __int32_t i0, i1, j0; [L21] __uint32_t i; VAL [one_modf=1.0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [one_modf=1.0] [L29] COND FALSE !(j0 < 20) VAL [one_modf=1.0] [L65] COND TRUE j0 > 51 [L66] __uint32_t high; [L67] *iptr = x * one_modf VAL [one_modf=1.0] [L69] ieee_double_shape_type gh_u; [L70] gh_u.value = (x) [L71] EXPR gh_u.parts.msw [L71] (high) = gh_u.parts.msw [L74] ieee_double_shape_type iw_u; [L75] iw_u.parts.msw = (high & 0x80000000) [L76] iw_u.parts.lsw = (0) [L77] EXPR iw_u.value [L77] (x) = iw_u.value [L79] return x; VAL [one_modf=1.0] [L118] double res = modf_double(x, &iptr); [L121] EXPR \read(iptr) [L15] return x != x; VAL [one_modf=1.0] [L121] isnan_double(iptr) && !isnan_double(res) [L15] return x != x; VAL [one_modf=1.0] [L121] isnan_double(iptr) && !isnan_double(res) VAL [one_modf=1.0] [L121] COND TRUE isnan_double(iptr) && !isnan_double(res) [L122] __VERIFIER_error() VAL [one_modf=1.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 44 locations, 1 error locations. Result: UNSAFE, OverallTime: 3.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 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, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 0.9s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 5 QuantifiedInterpolants, 2708 SizeOfPredicates, 8 NumberOfNonLiveVariables, 174 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...