./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/freire1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6692e4fc 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/nla-digbench/freire1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 6017351e7baf6c9b5817e3723e370f1f22bcdd89 ......................................................................................................................................................................................................................... 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/nla-digbench/freire1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash 6017351e7baf6c9b5817e3723e370f1f22bcdd89 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6692e4f [2019-11-25 17:09:34,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 17:09:34,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 17:09:34,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 17:09:34,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 17:09:34,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 17:09:34,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 17:09:34,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 17:09:34,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 17:09:34,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 17:09:34,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 17:09:34,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 17:09:34,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 17:09:34,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 17:09:34,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 17:09:34,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 17:09:34,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 17:09:34,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 17:09:34,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 17:09:34,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 17:09:34,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 17:09:34,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 17:09:34,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 17:09:34,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 17:09:34,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 17:09:34,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 17:09:34,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 17:09:34,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 17:09:34,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 17:09:34,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 17:09:34,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 17:09:34,223 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 17:09:34,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 17:09:34,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 17:09:34,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 17:09:34,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 17:09:34,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 17:09:34,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 17:09:34,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 17:09:34,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 17:09:34,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 17:09:34,230 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2019-11-25 17:09:34,244 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 17:09:34,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 17:09:34,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 17:09:34,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 17:09:34,247 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 17:09:34,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 17:09:34,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 17:09:34,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 17:09:34,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 17:09:34,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 17:09:34,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 17:09:34,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 17:09:34,249 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 17:09:34,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 17:09:34,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 17:09:34,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 17:09:34,250 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 17:09:34,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 17:09:34,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 17:09:34,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 17:09:34,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 17:09:34,251 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 17:09:34,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 17:09:34,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 17:09:34,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 17:09:34,252 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 17:09:34,253 INFO L138 SettingsManager]: * To the following directory=dump/ 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-25 17:09:34,554 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 17:09:34,567 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 17:09:34,570 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 17:09:34,572 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 17:09:34,572 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 17:09:34,573 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-25 17:09:34,643 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/527cc2ecb/c9cd50554ae64a2b984f39b2a52c4e16/FLAGe299b72ba [2019-11-25 17:09:35,094 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 17:09:35,097 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-25 17:09:35,103 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/527cc2ecb/c9cd50554ae64a2b984f39b2a52c4e16/FLAGe299b72ba [2019-11-25 17:09:35,494 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/527cc2ecb/c9cd50554ae64a2b984f39b2a52c4e16 [2019-11-25 17:09:35,498 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 17:09:35,500 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 17:09:35,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 17:09:35,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 17:09:35,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 17:09:35,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:09:35" (1/1) ... [2019-11-25 17:09:35,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b8ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:35, skipping insertion in model container [2019-11-25 17:09:35,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:09:35" (1/1) ... [2019-11-25 17:09:35,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 17:09:35,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-25 17:09:35,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 17:09:35,716 INFO L203 MainTranslator]: Completed pre-run [2019-11-25 17:09:35,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 17:09:35,753 INFO L208 MainTranslator]: Completed translation [2019-11-25 17:09:35,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:35 WrapperNode [2019-11-25 17:09:35,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 17:09:35,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 17:09:35,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 17:09:35,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 17:09:35,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:35" (1/1) ... [2019-11-25 17:09:35,768 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:35" (1/1) ... [2019-11-25 17:09:35,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 17:09:35,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 17:09:35,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 17:09:35,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 17:09:35,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:35" (1/1) ... [2019-11-25 17:09:35,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:35" (1/1) ... [2019-11-25 17:09:35,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:35" (1/1) ... [2019-11-25 17:09:35,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:35" (1/1) ... [2019-11-25 17:09:35,857 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:35" (1/1) ... [2019-11-25 17:09:35,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:35" (1/1) ... [2019-11-25 17:09:35,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:35" (1/1) ... [2019-11-25 17:09:35,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 17:09:35,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 17:09:35,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 17:09:35,865 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 17:09:35,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:35" (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 [2019-11-25 17:09:35,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 17:09:35,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 17:09:36,092 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 17:09:36,093 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-25 17:09:36,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:09:36 BoogieIcfgContainer [2019-11-25 17:09:36,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 17:09:36,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 17:09:36,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 17:09:36,099 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 17:09:36,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:09:35" (1/3) ... [2019-11-25 17:09:36,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@474c9e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:09:36, skipping insertion in model container [2019-11-25 17:09:36,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:35" (2/3) ... [2019-11-25 17:09:36,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@474c9e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:09:36, skipping insertion in model container [2019-11-25 17:09:36,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:09:36" (3/3) ... [2019-11-25 17:09:36,103 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-25 17:09:36,115 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 17:09:36,122 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-25 17:09:36,136 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-25 17:09:36,171 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 17:09:36,172 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 17:09:36,172 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 17:09:36,172 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 17:09:36,172 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 17:09:36,173 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 17:09:36,173 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 17:09:36,173 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 17:09:36,193 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-25 17:09:36,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-25 17:09:36,201 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 17:09:36,202 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-25 17:09:36,202 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 17:09:36,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 17:09:36,209 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-25 17:09:36,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 17:09:36,220 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352891661] [2019-11-25 17:09:36,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 17:09:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 17:09:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 17:09:36,333 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 17:09:36,334 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 17:09:36,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:09:36 BoogieIcfgContainer [2019-11-25 17:09:36,353 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 17:09:36,354 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 17:09:36,354 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 17:09:36,355 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 17:09:36,355 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:09:36" (3/4) ... [2019-11-25 17:09:36,360 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 17:09:36,360 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 17:09:36,363 INFO L168 Benchmark]: Toolchain (without parser) took 862.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -118.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 17:09:36,365 INFO L168 Benchmark]: CDTParser took 0.24 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. [2019-11-25 17:09:36,367 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.88 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-25 17:09:36,368 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-25 17:09:36,369 INFO L168 Benchmark]: Boogie Preprocessor took 21.82 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 17:09:36,370 INFO L168 Benchmark]: RCFGBuilder took 229.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-11-25 17:09:36,371 INFO L168 Benchmark]: TraceAbstraction took 258.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-11-25 17:09:36,372 INFO L168 Benchmark]: Witness Printer took 6.33 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 17:09:36,376 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 252.88 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 87.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -162.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.82 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 229.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 258.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Witness Printer took 6.33 ms. Allocated memory is still 1.1 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: 14]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 23. Possible FailurePath: [L20] int r; [L21] double a, x; [L22] a = __VERIFIER_nondet_double() [L23] x = a / 2.0 [L24] r = 0 [L26] COND TRUE 1 [L12] COND TRUE !(cond) [L14] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 2 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 0.1.24-6692e4f [2019-11-25 17:09:38,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 17:09:38,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 17:09:38,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 17:09:38,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 17:09:38,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 17:09:38,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 17:09:38,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 17:09:38,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 17:09:38,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 17:09:38,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 17:09:38,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 17:09:38,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 17:09:38,364 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 17:09:38,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 17:09:38,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 17:09:38,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 17:09:38,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 17:09:38,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 17:09:38,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 17:09:38,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 17:09:38,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 17:09:38,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 17:09:38,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 17:09:38,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 17:09:38,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 17:09:38,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 17:09:38,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 17:09:38,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 17:09:38,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 17:09:38,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 17:09:38,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 17:09:38,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 17:09:38,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 17:09:38,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 17:09:38,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 17:09:38,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 17:09:38,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 17:09:38,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 17:09:38,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 17:09:38,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 17:09:38,394 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2019-11-25 17:09:38,409 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 17:09:38,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 17:09:38,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 17:09:38,411 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 17:09:38,411 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 17:09:38,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 17:09:38,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 17:09:38,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 17:09:38,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 17:09:38,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 17:09:38,413 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 17:09:38,413 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 17:09:38,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 17:09:38,414 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 17:09:38,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 17:09:38,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 17:09:38,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 17:09:38,415 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 17:09:38,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 17:09:38,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 17:09:38,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 17:09:38,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 17:09:38,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 17:09:38,417 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 17:09:38,417 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 17:09:38,417 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 17:09:38,418 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 17:09:38,418 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2019-11-25 17:09:38,418 INFO L138 SettingsManager]: * To the following directory=dump/ 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-25 17:09:38,733 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 17:09:38,749 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 17:09:38,752 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 17:09:38,754 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 17:09:38,754 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 17:09:38,755 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-25 17:09:38,830 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e639df89/df95fd37a8254fd99112a7c988d848cb/FLAG27ccd373e [2019-11-25 17:09:39,315 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 17:09:39,316 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-25 17:09:39,320 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e639df89/df95fd37a8254fd99112a7c988d848cb/FLAG27ccd373e [2019-11-25 17:09:39,701 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e639df89/df95fd37a8254fd99112a7c988d848cb [2019-11-25 17:09:39,705 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 17:09:39,706 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 17:09:39,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 17:09:39,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 17:09:39,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 17:09:39,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:09:39" (1/1) ... [2019-11-25 17:09:39,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff1b695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:39, skipping insertion in model container [2019-11-25 17:09:39,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:09:39" (1/1) ... [2019-11-25 17:09:39,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 17:09:39,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-25 17:09:39,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 17:09:39,979 INFO L203 MainTranslator]: Completed pre-run [2019-11-25 17:09:40,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 17:09:40,037 INFO L208 MainTranslator]: Completed translation [2019-11-25 17:09:40,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:40 WrapperNode [2019-11-25 17:09:40,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 17:09:40,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 17:09:40,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 17:09:40,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 17:09:40,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:40" (1/1) ... [2019-11-25 17:09:40,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:40" (1/1) ... [2019-11-25 17:09:40,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 17:09:40,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 17:09:40,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 17:09:40,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 17:09:40,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:40" (1/1) ... [2019-11-25 17:09:40,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:40" (1/1) ... [2019-11-25 17:09:40,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:40" (1/1) ... [2019-11-25 17:09:40,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:40" (1/1) ... [2019-11-25 17:09:40,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:40" (1/1) ... [2019-11-25 17:09:40,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:40" (1/1) ... [2019-11-25 17:09:40,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:40" (1/1) ... [2019-11-25 17:09:40,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 17:09:40,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 17:09:40,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 17:09:40,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 17:09:40,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:40" (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 [2019-11-25 17:09:40,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 17:09:40,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 17:09:45,301 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 17:09:45,302 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-25 17:09:45,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:09:45 BoogieIcfgContainer [2019-11-25 17:09:45,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 17:09:45,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 17:09:45,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 17:09:45,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 17:09:45,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:09:39" (1/3) ... [2019-11-25 17:09:45,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13458b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:09:45, skipping insertion in model container [2019-11-25 17:09:45,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:09:40" (2/3) ... [2019-11-25 17:09:45,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13458b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:09:45, skipping insertion in model container [2019-11-25 17:09:45,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:09:45" (3/3) ... [2019-11-25 17:09:45,311 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-25 17:09:45,321 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 17:09:45,329 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-25 17:09:45,342 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-25 17:09:45,376 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 17:09:45,377 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 17:09:45,377 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 17:09:45,377 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 17:09:45,378 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 17:09:45,378 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 17:09:45,378 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 17:09:45,379 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 17:09:45,399 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-25 17:09:45,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-25 17:09:45,403 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 17:09:45,404 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-25 17:09:45,405 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 17:09:45,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 17:09:45,410 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2019-11-25 17:09:45,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 17:09:45,420 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1831767014] [2019-11-25 17:09:45,420 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 [2019-11-25 17:09:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 17:09:48,526 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 17:09:48,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 17:09:51,737 WARN L192 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 13 [2019-11-25 17:09:54,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 17:09:54,579 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 17:09:56,867 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from false [2019-11-25 17:09:58,923 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from true [2019-11-25 17:10:01,000 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~a~0_8 (_ FloatingPoint 11 53))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~a~0_8) .cse0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~a~0_8 ((_ to_fp 11 53) c_currentRoundingMode 2.0))))) (_ bv0 32))) is different from true [2019-11-25 17:10:01,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 17:10:01,002 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1831767014] [2019-11-25 17:10:01,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 17:10:01,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-11-25 17:10:01,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886467636] [2019-11-25 17:10:01,010 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 17:10:01,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 17:10:01,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 17:10:01,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=21, Unknown=3, NotChecked=18, Total=56 [2019-11-25 17:10:01,027 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 8 states. [2019-11-25 17:10:03,173 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~a~0_8 (_ FloatingPoint 11 53))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~a~0_8) .cse0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~a~0_8 ((_ to_fp 11 53) c_currentRoundingMode 2.0))))) (_ bv0 32))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-11-25 17:10:05,225 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 32) c_ULTIMATE.start_main_~r~0) (= c_ULTIMATE.start_main_~x~0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2019-11-25 17:10:07,282 WARN L860 $PredicateComparison]: unable to prove that (and (= (_ bv0 32) c_ULTIMATE.start_main_~r~0) (= c_ULTIMATE.start_main_~x~0 (fp.div c_currentRoundingMode c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 2.0))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2019-11-25 17:10:14,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 17:10:14,735 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2019-11-25 17:10:14,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 17:10:14,737 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2019-11-25 17:10:14,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 17:10:14,751 INFO L225 Difference]: With dead ends: 29 [2019-11-25 17:10:14,751 INFO L226 Difference]: Without dead ends: 11 [2019-11-25 17:10:14,755 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=22, Invalid=30, Unknown=6, NotChecked=52, Total=110 [2019-11-25 17:10:14,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-25 17:10:14,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2019-11-25 17:10:14,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-25 17:10:14,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-25 17:10:14,791 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2019-11-25 17:10:14,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 17:10:14,792 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-25 17:10:14,792 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 17:10:14,793 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-25 17:10:14,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-25 17:10:14,793 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 17:10:14,794 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 17:10:15,005 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-25 17:10:15,006 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 17:10:15,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 17:10:15,007 INFO L82 PathProgramCache]: Analyzing trace with hash 300765331, now seen corresponding path program 1 times [2019-11-25 17:10:15,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 17:10:15,008 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494241459] [2019-11-25 17:10:15,009 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 [2019-11-25 17:10:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 17:10:15,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 17:10:15,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 17:10:17,423 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))))) (or (and (not .cse0) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0))) is different from false [2019-11-25 17:10:19,487 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))))) (or (and (not .cse0) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0))) is different from true [2019-11-25 17:10:19,489 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 17:10:21,561 WARN L838 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from false [2019-11-25 17:10:23,621 WARN L860 $PredicateComparison]: unable to prove that (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) is different from true [2019-11-25 17:10:23,628 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 17:10:29,816 WARN L838 $PredicateComparison]: unable to prove that (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53)) (ULTIMATE.start_main_~r~0 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0)))))) is different from false [2019-11-25 17:10:29,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 17:10:29,824 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 17:10:31,904 WARN L838 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) is different from false [2019-11-25 17:10:33,963 WARN L860 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0)))) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) is different from true [2019-11-25 17:10:34,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 17:10:34,143 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494241459] [2019-11-25 17:10:34,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 17:10:34,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-25 17:10:34,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460555722] [2019-11-25 17:10:34,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 17:10:34,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 17:10:34,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 17:10:34,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=4, Unknown=7, NotChecked=20, Total=42 [2019-11-25 17:10:34,146 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2019-11-25 17:10:39,605 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (bvmul c_ULTIMATE.start_main_~r~0 c_ULTIMATE.start_main_~r~0)) c_ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) c_currentRoundingMode c_ULTIMATE.start_main_~r~0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_main_~x~0))))) (.cse1 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (and (or (and (not .cse0) .cse1) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) .cse0)) (or .cse0 .cse1))) is different from true [2019-11-25 17:10:41,666 WARN L838 $PredicateComparison]: unable to prove that (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((ULTIMATE.start_main_~a~0 (_ FloatingPoint 11 53)) (ULTIMATE.start_main_~r~0 (_ BitVec 32)) (ULTIMATE.start_main_~x~0 (_ FloatingPoint 11 53)) (currentRoundingMode RoundingMode)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0))))) (not (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) is different from false [2019-11-25 17:10:41,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 17:10:41,670 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-25 17:10:41,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 17:10:41,670 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-11-25 17:10:41,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 17:10:41,671 INFO L225 Difference]: With dead ends: 9 [2019-11-25 17:10:41,671 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 17:10:41,673 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.8s TimeCoverageRelationStatistics Valid=15, Invalid=6, Unknown=9, NotChecked=42, Total=72 [2019-11-25 17:10:41,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 17:10:41,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 17:10:41,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 17:10:41,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 17:10:41,673 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-25 17:10:41,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 17:10:41,674 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 17:10:41,674 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 17:10:41,674 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 17:10:41,674 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 17:10:41,875 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-25 17:10:41,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 17:10:54,183 WARN L192 SmtUtils]: Spent 12.25 s on a formula simplification that was a NOOP. DAG size: 22 [2019-11-25 17:11:13,733 WARN L192 SmtUtils]: Spent 19.54 s on a formula simplification that was a NOOP. DAG size: 30 [2019-11-25 17:11:13,739 INFO L474 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 17:11:13,739 INFO L474 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-25 17:11:13,740 INFO L474 ceAbstractionStarter]: For program point L13(lines 13 14) no Hoare annotation was computed. [2019-11-25 17:11:13,740 INFO L474 ceAbstractionStarter]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2019-11-25 17:11:13,740 INFO L470 ceAbstractionStarter]: At program point L36(lines 19 37) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-25 17:11:13,740 INFO L474 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-25 17:11:13,740 INFO L474 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 17:11:13,740 INFO L474 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 17:11:13,740 INFO L474 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-25 17:11:13,742 INFO L470 ceAbstractionStarter]: At program point L26-2(lines 26 33) the Hoare annotation is: (or (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (and (= (_ bv0 32) ULTIMATE.start_main_~r~0) (= ULTIMATE.start_main_~x~0 (fp.div currentRoundingMode ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) currentRoundingMode 2.0))) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0)))) (= currentRoundingMode roundNearestTiesToEven))) [2019-11-25 17:11:13,742 INFO L474 ceAbstractionStarter]: For program point L26-3(lines 26 33) no Hoare annotation was computed. [2019-11-25 17:11:13,742 INFO L474 ceAbstractionStarter]: For program point L12(lines 12 15) no Hoare annotation was computed. [2019-11-25 17:11:13,742 INFO L470 ceAbstractionStarter]: At program point L12-2(lines 29 30) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ((_ fp.to_sbv 32) roundTowardZero (fp.add currentRoundingMode (fp.sub currentRoundingMode (fp.sub currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (bvmul ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~r~0)) ULTIMATE.start_main_~a~0) ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_main_~r~0)) (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)) ULTIMATE.start_main_~x~0))))) [2019-11-25 17:11:13,743 INFO L474 ceAbstractionStarter]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2019-11-25 17:11:13,743 INFO L470 ceAbstractionStarter]: At program point L12-5(lines 11 17) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-25 17:11:13,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 17:11:13,753 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,753 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,753 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,753 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,753 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,754 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,754 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,757 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 17:11:13,757 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,758 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,758 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,758 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,758 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,758 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,759 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,760 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 17:11:13,761 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 17:11:13,762 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,764 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,764 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,764 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,765 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 17:11:13,766 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 17:11:13,767 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,767 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,768 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,768 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,768 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,768 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,770 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:11:13 BoogieIcfgContainer [2019-11-25 17:11:13,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 17:11:13,777 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 17:11:13,777 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 17:11:13,778 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 17:11:13,779 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:09:45" (3/4) ... [2019-11-25 17:11:13,783 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 17:11:13,792 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-25 17:11:13,792 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-25 17:11:13,793 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 17:11:13,839 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-25 17:11:13,840 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 17:11:13,842 INFO L168 Benchmark]: Toolchain (without parser) took 94135.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 955.0 MB in the beginning and 1.0 GB in the end (delta: -55.5 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. [2019-11-25 17:11:13,842 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 17:11:13,843 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.93 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-25 17:11:13,844 INFO L168 Benchmark]: Boogie Procedure Inliner took 126.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -155.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-25 17:11:13,845 INFO L168 Benchmark]: Boogie Preprocessor took 30.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-25 17:11:13,845 INFO L168 Benchmark]: RCFGBuilder took 5107.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-11-25 17:11:13,846 INFO L168 Benchmark]: TraceAbstraction took 88471.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 68.5 MB). Peak memory consumption was 68.5 MB. Max. memory is 11.5 GB. [2019-11-25 17:11:13,847 INFO L168 Benchmark]: Witness Printer took 63.15 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 17:11:13,851 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 330.93 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 126.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -155.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5107.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 88471.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 68.5 MB). Peak memory consumption was 68.5 MB. Max. memory is 11.5 GB. * Witness Printer took 63.15 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 14]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant [2019-11-25 17:11:13,868 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 17:11:13,868 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,869 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,869 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,869 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,870 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,870 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,870 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,871 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 17:11:13,871 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,871 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,873 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,873 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && 0bv32 == ~convertDOUBLEToINT(~roundTowardZero, ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~bvmul32(r, r)), a), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, r)), ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32), x))) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 26]: Loop Invariant [2019-11-25 17:11:13,874 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 17:11:13,874 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 17:11:13,875 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,875 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,875 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,876 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,876 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,876 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,877 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,877 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,877 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,878 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,878 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-25 17:11:13,879 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-25 17:11:13,879 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,879 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,880 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,880 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,880 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,880 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,881 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,881 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,881 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-25 17:11:13,882 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 || (((0bv32 == r && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, a, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2.0))) && 0bv32 == ~convertDOUBLEToINT(~roundTowardZero, ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.sub~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~bvmul32(r, r)), a), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, r)), ~fp.mul~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32), x)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Result: SAFE, OverallTime: 88.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 21.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 31.8s, HoareTripleCheckerStatistics: 12 SDtfs, 17 SDslu, 11 SDs, 0 SdLazy, 14 SolverSat, 4 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 9.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 35.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 87 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 31.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 31.3s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 2 QuantifiedInterpolants, 1979 SizeOfPredicates, 18 NumberOfNonLiveVariables, 24 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 correct! Received shutdown request...