./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/freire1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 701f399f 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-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6017351e7baf6c9b5817e3723e370f1f22bcdd89 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-701f399 [2019-11-22 10:04:51,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 10:04:51,828 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 10:04:51,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 10:04:51,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 10:04:51,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 10:04:51,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 10:04:51,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 10:04:51,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 10:04:51,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 10:04:51,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 10:04:51,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 10:04:51,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 10:04:51,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 10:04:51,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 10:04:51,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 10:04:51,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 10:04:51,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 10:04:51,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 10:04:51,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 10:04:51,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 10:04:51,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 10:04:51,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 10:04:51,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 10:04:51,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 10:04:51,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 10:04:51,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 10:04:51,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 10:04:51,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 10:04:51,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 10:04:51,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 10:04:51,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 10:04:51,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 10:04:51,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 10:04:51,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 10:04:51,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 10:04:51,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 10:04:51,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 10:04:51,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 10:04:51,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 10:04:51,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 10:04:51,885 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-22 10:04:51,901 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 10:04:51,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 10:04:51,903 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 10:04:51,903 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 10:04:51,903 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 10:04:51,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 10:04:51,904 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-22 10:04:51,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 10:04:51,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-22 10:04:51,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 10:04:51,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-22 10:04:51,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 10:04:51,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-22 10:04:51,906 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-22 10:04:51,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-22 10:04:51,906 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 10:04:51,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-22 10:04:51,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 10:04:51,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 10:04:51,908 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 10:04:51,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 10:04:51,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 10:04:51,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 10:04:51,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 10:04:51,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-22 10:04:51,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-22 10:04:51,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-22 10:04:51,910 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-22 10:04:51,910 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-22 10:04:52,251 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 10:04:52,268 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 10:04:52,273 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 10:04:52,274 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 10:04:52,275 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 10:04:52,276 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-22 10:04:52,350 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c8425d56/dac27a76a97341508796e709a522867c/FLAG6a2fb15f1 [2019-11-22 10:04:52,800 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 10:04:52,801 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-22 10:04:52,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c8425d56/dac27a76a97341508796e709a522867c/FLAG6a2fb15f1 [2019-11-22 10:04:53,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c8425d56/dac27a76a97341508796e709a522867c [2019-11-22 10:04:53,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 10:04:53,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-22 10:04:53,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 10:04:53,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 10:04:53,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 10:04:53,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:04:53" (1/1) ... [2019-11-22 10:04:53,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32f325c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:53, skipping insertion in model container [2019-11-22 10:04:53,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:04:53" (1/1) ... [2019-11-22 10:04:53,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 10:04:53,238 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-22 10:04:53,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 10:04:53,424 INFO L201 MainTranslator]: Completed pre-run [2019-11-22 10:04:53,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 10:04:53,455 INFO L205 MainTranslator]: Completed translation [2019-11-22 10:04:53,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:53 WrapperNode [2019-11-22 10:04:53,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 10:04:53,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-22 10:04:53,457 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-22 10:04:53,457 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-22 10:04:53,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:53" (1/1) ... [2019-11-22 10:04:53,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:53" (1/1) ... [2019-11-22 10:04:53,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-22 10:04:53,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 10:04:53,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 10:04:53,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 10:04:53,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:53" (1/1) ... [2019-11-22 10:04:53,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:53" (1/1) ... [2019-11-22 10:04:53,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:53" (1/1) ... [2019-11-22 10:04:53,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:53" (1/1) ... [2019-11-22 10:04:53,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:53" (1/1) ... [2019-11-22 10:04:53,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:53" (1/1) ... [2019-11-22 10:04:53,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:53" (1/1) ... [2019-11-22 10:04:53,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 10:04:53,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 10:04:53,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 10:04:53,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 10:04:53,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:53" (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 [2019-11-22 10:04:53,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 10:04:53,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 10:04:53,814 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 10:04:53,814 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-22 10:04:53,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:04:53 BoogieIcfgContainer [2019-11-22 10:04:53,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 10:04:53,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 10:04:53,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 10:04:53,820 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 10:04:53,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:04:53" (1/3) ... [2019-11-22 10:04:53,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b8c0d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:04:53, skipping insertion in model container [2019-11-22 10:04:53,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:53" (2/3) ... [2019-11-22 10:04:53,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b8c0d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:04:53, skipping insertion in model container [2019-11-22 10:04:53,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:04:53" (3/3) ... [2019-11-22 10:04:53,824 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-22 10:04:53,834 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 10:04:53,842 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-22 10:04:53,855 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-22 10:04:53,884 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 10:04:53,884 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-22 10:04:53,885 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 10:04:53,885 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 10:04:53,886 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 10:04:53,886 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 10:04:53,886 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 10:04:53,887 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 10:04:53,909 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-22 10:04:53,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-22 10:04:53,917 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:04:53,918 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-22 10:04:53,919 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 10:04:53,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:04:53,928 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-22 10:04:53,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-22 10:04:53,940 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89388173] [2019-11-22 10:04:53,940 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-22 10:04:54,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-22 10:04:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-22 10:04:54,054 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-22 10:04:54,055 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-22 10:04:54,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 10:04:54 BoogieIcfgContainer [2019-11-22 10:04:54,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-22 10:04:54,075 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-22 10:04:54,076 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-22 10:04:54,076 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-22 10:04:54,077 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:04:53" (3/4) ... [2019-11-22 10:04:54,081 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-22 10:04:54,082 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-22 10:04:54,085 INFO L168 Benchmark]: Toolchain (without parser) took 883.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -116.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 10:04:54,086 INFO L168 Benchmark]: CDTParser took 0.27 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. [2019-11-22 10:04:54,087 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.98 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-22 10:04:54,088 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -165.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-22 10:04:54,090 INFO L168 Benchmark]: Boogie Preprocessor took 35.21 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-22 10:04:54,090 INFO L168 Benchmark]: RCFGBuilder took 232.61 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: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2019-11-22 10:04:54,091 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: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2019-11-22 10:04:54,092 INFO L168 Benchmark]: Witness Printer took 6.59 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. [2019-11-22 10:04:54,097 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 254.98 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 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 90.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -165.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.21 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 232.61 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: 11.1 MB). Peak memory consumption was 11.1 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: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * Witness Printer took 6.59 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 0.1.24-701f399 [2019-11-22 10:04:56,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 10:04:56,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 10:04:56,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 10:04:56,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 10:04:56,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 10:04:56,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 10:04:56,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 10:04:56,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 10:04:56,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 10:04:56,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 10:04:56,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 10:04:56,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 10:04:56,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 10:04:56,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 10:04:56,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 10:04:56,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 10:04:56,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 10:04:56,131 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 10:04:56,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 10:04:56,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 10:04:56,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 10:04:56,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 10:04:56,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 10:04:56,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 10:04:56,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 10:04:56,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 10:04:56,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 10:04:56,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 10:04:56,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 10:04:56,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 10:04:56,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 10:04:56,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 10:04:56,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 10:04:56,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 10:04:56,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 10:04:56,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 10:04:56,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 10:04:56,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 10:04:56,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 10:04:56,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 10:04:56,151 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-22 10:04:56,166 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 10:04:56,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 10:04:56,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 10:04:56,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 10:04:56,169 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 10:04:56,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 10:04:56,169 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-22 10:04:56,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-22 10:04:56,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 10:04:56,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-22 10:04:56,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 10:04:56,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-22 10:04:56,170 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 10:04:56,172 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-22 10:04:56,172 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-22 10:04:56,172 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-22 10:04:56,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-22 10:04:56,172 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 10:04:56,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-22 10:04:56,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 10:04:56,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 10:04:56,174 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 10:04:56,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 10:04:56,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 10:04:56,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 10:04:56,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 10:04:56,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-22 10:04:56,176 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-22 10:04:56,176 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-22 10:04:56,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-22 10:04:56,177 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 10:04:56,177 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-22 10:04:56,489 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 10:04:56,502 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 10:04:56,506 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 10:04:56,508 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 10:04:56,508 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 10:04:56,509 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-22 10:04:56,576 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bab4d6f6a/b7fea6bc1c9c486786ce8e3d6d80e519/FLAGf65740f10 [2019-11-22 10:04:57,037 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 10:04:57,038 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-22 10:04:57,046 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bab4d6f6a/b7fea6bc1c9c486786ce8e3d6d80e519/FLAGf65740f10 [2019-11-22 10:04:57,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bab4d6f6a/b7fea6bc1c9c486786ce8e3d6d80e519 [2019-11-22 10:04:57,440 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 10:04:57,441 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-22 10:04:57,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 10:04:57,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 10:04:57,446 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 10:04:57,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:04:57" (1/1) ... [2019-11-22 10:04:57,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb8afde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:57, skipping insertion in model container [2019-11-22 10:04:57,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:04:57" (1/1) ... [2019-11-22 10:04:57,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 10:04:57,477 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-22 10:04:57,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 10:04:57,654 INFO L201 MainTranslator]: Completed pre-run [2019-11-22 10:04:57,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 10:04:57,696 INFO L205 MainTranslator]: Completed translation [2019-11-22 10:04:57,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:57 WrapperNode [2019-11-22 10:04:57,697 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 10:04:57,698 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-22 10:04:57,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-22 10:04:57,698 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-22 10:04:57,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:57" (1/1) ... [2019-11-22 10:04:57,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:57" (1/1) ... [2019-11-22 10:04:57,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-22 10:04:57,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 10:04:57,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 10:04:57,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 10:04:57,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:57" (1/1) ... [2019-11-22 10:04:57,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:57" (1/1) ... [2019-11-22 10:04:57,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:57" (1/1) ... [2019-11-22 10:04:57,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:57" (1/1) ... [2019-11-22 10:04:57,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:57" (1/1) ... [2019-11-22 10:04:57,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:57" (1/1) ... [2019-11-22 10:04:57,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:57" (1/1) ... [2019-11-22 10:04:57,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 10:04:57,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 10:04:57,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 10:04:57,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 10:04:57,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:57" (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 [2019-11-22 10:04:57,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 10:04:57,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 10:05:02,885 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 10:05:02,885 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-22 10:05:02,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:05:02 BoogieIcfgContainer [2019-11-22 10:05:02,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 10:05:02,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 10:05:02,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 10:05:02,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 10:05:02,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:04:57" (1/3) ... [2019-11-22 10:05:02,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489b8a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:05:02, skipping insertion in model container [2019-11-22 10:05:02,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:04:57" (2/3) ... [2019-11-22 10:05:02,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489b8a3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:05:02, skipping insertion in model container [2019-11-22 10:05:02,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:05:02" (3/3) ... [2019-11-22 10:05:02,895 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-22 10:05:02,904 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 10:05:02,910 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-22 10:05:02,920 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-22 10:05:02,945 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 10:05:02,945 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-22 10:05:02,946 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 10:05:02,947 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 10:05:02,948 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 10:05:02,948 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 10:05:02,949 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 10:05:02,949 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 10:05:02,966 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-22 10:05:02,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-22 10:05:02,970 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:05:02,971 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-22 10:05:02,971 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 10:05:02,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:05:02,977 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2019-11-22 10:05:02,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:05:02,986 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1075942697] [2019-11-22 10:05:02,987 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 [2019-11-22 10:05:06,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:05:06,126 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 10:05:06,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:05:09,205 WARN L192 SmtUtils]: Spent 1.84 s on a formula simplification that was a NOOP. DAG size: 13 [2019-11-22 10:05:14,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:05:14,883 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:05:17,163 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 [2019-11-22 10:05:19,220 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 [2019-11-22 10:05:31,041 WARN L192 SmtUtils]: Spent 1.58 s on a formula simplification that was a NOOP. DAG size: 17 [2019-11-22 10:05:31,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:05:31,044 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1075942697] [2019-11-22 10:05:31,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 10:05:31,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-11-22 10:05:31,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391330929] [2019-11-22 10:05:31,052 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-22 10:05:31,052 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:05:31,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-22 10:05:31,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=26, Unknown=6, NotChecked=10, Total=56 [2019-11-22 10:05:31,069 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 8 states. [2019-11-22 10:05:33,215 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 [2019-11-22 10:05:35,657 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 [2019-11-22 10:06:12,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:06:12,670 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2019-11-22 10:06:12,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 10:06:12,719 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2019-11-22 10:06:12,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:06:12,727 INFO L225 Difference]: With dead ends: 29 [2019-11-22 10:06:12,727 INFO L226 Difference]: Without dead ends: 11 [2019-11-22 10:06:12,731 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 26.0s TimeCoverageRelationStatistics Valid=22, Invalid=37, Unknown=9, NotChecked=42, Total=110 [2019-11-22 10:06:12,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-22 10:06:12,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2019-11-22 10:06:12,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-22 10:06:12,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-22 10:06:12,774 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2019-11-22 10:06:12,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:06:12,775 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-22 10:06:12,775 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-22 10:06:12,775 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-22 10:06:12,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-22 10:06:12,776 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:06:12,776 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:06:12,988 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-22 10:06:12,988 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 10:06:12,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:06:12,989 INFO L82 PathProgramCache]: Analyzing trace with hash 300765331, now seen corresponding path program 1 times [2019-11-22 10:06:12,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:06:12,990 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1857640744] [2019-11-22 10:06:12,990 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 [2019-11-22 10:06:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:06:13,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 10:06:13,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:06:15,434 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 [2019-11-22 10:06:17,493 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 [2019-11-22 10:06:17,496 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 10:06:19,561 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 [2019-11-22 10:06:21,618 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 [2019-11-22 10:06:21,625 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 10:06:27,816 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 [2019-11-22 10:06:27,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:06:27,825 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:06:29,892 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 [2019-11-22 10:06:31,967 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 [2019-11-22 10:06:32,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:06:32,149 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1857640744] [2019-11-22 10:06:32,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 10:06:32,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-22 10:06:32,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238761158] [2019-11-22 10:06:32,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-22 10:06:32,151 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:06:32,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-22 10:06:32,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=4, Unknown=7, NotChecked=20, Total=42 [2019-11-22 10:06:32,152 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2019-11-22 10:06:35,602 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))))) (.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 false [2019-11-22 10:06:37,665 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 [2019-11-22 10:06:39,730 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 [2019-11-22 10:06:39,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:06:39,736 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-22 10:06:39,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 10:06:39,736 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-11-22 10:06:39,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:06:39,737 INFO L225 Difference]: With dead ends: 9 [2019-11-22 10:06:39,737 INFO L226 Difference]: Without dead ends: 0 [2019-11-22 10:06:39,738 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=15, Invalid=5, Unknown=10, NotChecked=42, Total=72 [2019-11-22 10:06:39,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-22 10:06:39,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-22 10:06:39,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-22 10:06:39,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-22 10:06:39,739 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-22 10:06:39,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:06:39,739 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-22 10:06:39,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-22 10:06:39,740 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-22 10:06:39,740 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-22 10:06:39,940 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-22 10:06:39,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-22 10:06:52,327 WARN L192 SmtUtils]: Spent 12.34 s on a formula simplification that was a NOOP. DAG size: 22 [2019-11-22 10:07:13,302 WARN L192 SmtUtils]: Spent 20.97 s on a formula simplification that was a NOOP. DAG size: 30 [2019-11-22 10:07:13,308 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-22 10:07:13,309 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-22 10:07:13,309 INFO L444 ceAbstractionStarter]: For program point L13(lines 13 14) no Hoare annotation was computed. [2019-11-22 10:07:13,309 INFO L444 ceAbstractionStarter]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2019-11-22 10:07:13,309 INFO L440 ceAbstractionStarter]: At program point L36(lines 19 37) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-22 10:07:13,309 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-22 10:07:13,309 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-22 10:07:13,310 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-22 10:07:13,310 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-22 10:07:13,310 INFO L440 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))) [2019-11-22 10:07:13,310 INFO L444 ceAbstractionStarter]: For program point L26-3(lines 26 33) no Hoare annotation was computed. [2019-11-22 10:07:13,310 INFO L444 ceAbstractionStarter]: For program point L12(lines 12 15) no Hoare annotation was computed. [2019-11-22 10:07:13,310 INFO L440 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))))) [2019-11-22 10:07:13,311 INFO L444 ceAbstractionStarter]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2019-11-22 10:07:13,311 INFO L440 ceAbstractionStarter]: At program point L12-5(lines 11 17) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-22 10:07:13,318 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 10:07:13,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,324 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 10:07:13,325 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,325 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,325 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,325 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,327 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 10:07:13,328 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-22 10:07:13,328 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,330 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,331 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,331 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 10:07:13,332 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-22 10:07:13,332 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,335 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,335 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,335 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 10:07:13 BoogieIcfgContainer [2019-11-22 10:07:13,338 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-22 10:07:13,339 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-22 10:07:13,339 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-22 10:07:13,339 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-22 10:07:13,340 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:05:02" (3/4) ... [2019-11-22 10:07:13,344 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-22 10:07:13,355 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-22 10:07:13,356 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-22 10:07:13,356 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-22 10:07:13,404 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-22 10:07:13,404 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-22 10:07:13,406 INFO L168 Benchmark]: Toolchain (without parser) took 135964.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -76.1 MB). Peak memory consumption was 51.8 MB. Max. memory is 11.5 GB. [2019-11-22 10:07:13,407 INFO L168 Benchmark]: CDTParser took 0.25 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. [2019-11-22 10:07:13,408 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.85 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-22 10:07:13,408 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -182.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-22 10:07:13,409 INFO L168 Benchmark]: Boogie Preprocessor took 27.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-11-22 10:07:13,410 INFO L168 Benchmark]: RCFGBuilder took 5067.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2019-11-22 10:07:13,410 INFO L168 Benchmark]: TraceAbstraction took 130451.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.5 MB). Peak memory consumption was 71.5 MB. Max. memory is 11.5 GB. [2019-11-22 10:07:13,411 INFO L168 Benchmark]: Witness Printer took 65.61 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 10:07:13,415 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 254.85 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 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 92.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -182.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5067.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 130451.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.5 MB). Peak memory consumption was 71.5 MB. Max. memory is 11.5 GB. * Witness Printer took 65.61 ms. Allocated memory is still 1.2 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 [2019-11-22 10:07:13,439 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 10:07:13,439 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,439 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,440 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,440 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,440 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,440 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,440 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,441 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 10:07:13,441 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,441 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,442 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,442 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,442 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,442 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,442 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 [2019-11-22 10:07:13,443 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 10:07:13,444 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-22 10:07:13,444 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,444 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,445 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,445 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,445 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,446 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,446 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,446 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,447 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,447 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,448 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 10:07:13,448 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-22 10:07:13,448 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,449 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,449 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,449 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,449 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,450 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,450 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,450 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,451 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 10:07:13,451 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: 130.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 49.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 33.3s, HoareTripleCheckerStatistics: 12 SDtfs, 17 SDslu, 11 SDs, 0 SdLazy, 15 SolverSat, 4 SolverUnsat, 16 SolverUnknown, 0 SolverNotchecked, 35.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 46.7s 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, 33.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 43.7s 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...