./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench/freire1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3d056a1f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench/freire1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6017351e7baf6c9b5817e3723e370f1f22bcdd89 .......................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench/freire1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6017351e7baf6c9b5817e3723e370f1f22bcdd89 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-3d056a1 [2019-11-22 13:43:22,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 13:43:22,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 13:43:22,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 13:43:22,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 13:43:22,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 13:43:22,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 13:43:22,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 13:43:22,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 13:43:22,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 13:43:22,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 13:43:22,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 13:43:22,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 13:43:22,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 13:43:22,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 13:43:22,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 13:43:22,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 13:43:22,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 13:43:22,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 13:43:22,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 13:43:22,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 13:43:22,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 13:43:22,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 13:43:22,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 13:43:22,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 13:43:22,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 13:43:22,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 13:43:22,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 13:43:22,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 13:43:22,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 13:43:22,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 13:43:22,497 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 13:43:22,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 13:43:22,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 13:43:22,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 13:43:22,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 13:43:22,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 13:43:22,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 13:43:22,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 13:43:22,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 13:43:22,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 13:43:22,505 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2019-11-22 13:43:22,519 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 13:43:22,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 13:43:22,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 13:43:22,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 13:43:22,524 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 13:43:22,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 13:43:22,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 13:43:22,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 13:43:22,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-22 13:43:22,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 13:43:22,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-22 13:43:22,527 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 13:43:22,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-22 13:43:22,528 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 13:43:22,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-22 13:43:22,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 13:43:22,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 13:43:22,529 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 13:43:22,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 13:43:22,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 13:43:22,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 13:43:22,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 13:43:22,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-22 13:43:22,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-22 13:43:22,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-22 13:43:22,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-22 13:43:22,532 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 13:43:22,532 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-22 13:43:22,859 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 13:43:22,878 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 13:43:22,882 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 13:43:22,884 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 13:43:22,885 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 13:43:22,885 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-22 13:43:22,954 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04a051887/8725b5bc94b24a2eb32cca51815be982/FLAG7c0dbd679 [2019-11-22 13:43:23,446 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 13:43:23,448 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-22 13:43:23,456 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04a051887/8725b5bc94b24a2eb32cca51815be982/FLAG7c0dbd679 [2019-11-22 13:43:23,804 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04a051887/8725b5bc94b24a2eb32cca51815be982 [2019-11-22 13:43:23,808 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 13:43:23,809 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-22 13:43:23,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 13:43:23,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 13:43:23,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 13:43:23,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:43:23" (1/1) ... [2019-11-22 13:43:23,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c9a419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:23, skipping insertion in model container [2019-11-22 13:43:23,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:43:23" (1/1) ... [2019-11-22 13:43:23,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 13:43:23,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 13:43:24,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:43:24,045 INFO L203 MainTranslator]: Completed pre-run [2019-11-22 13:43:24,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:43:24,079 INFO L208 MainTranslator]: Completed translation [2019-11-22 13:43:24,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:24 WrapperNode [2019-11-22 13:43:24,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 13:43:24,081 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-22 13:43:24,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-22 13:43:24,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-22 13:43:24,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:24" (1/1) ... [2019-11-22 13:43:24,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:24" (1/1) ... [2019-11-22 13:43:24,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-22 13:43:24,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 13:43:24,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 13:43:24,172 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 13:43:24,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:24" (1/1) ... [2019-11-22 13:43:24,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:24" (1/1) ... [2019-11-22 13:43:24,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:24" (1/1) ... [2019-11-22 13:43:24,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:24" (1/1) ... [2019-11-22 13:43:24,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:24" (1/1) ... [2019-11-22 13:43:24,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:24" (1/1) ... [2019-11-22 13:43:24,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:24" (1/1) ... [2019-11-22 13:43:24,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 13:43:24,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 13:43:24,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 13:43:24,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 13:43:24,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:24" (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 13:43:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 13:43:24,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 13:43:24,445 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 13:43:24,445 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-22 13:43:24,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:43:24 BoogieIcfgContainer [2019-11-22 13:43:24,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 13:43:24,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 13:43:24,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 13:43:24,451 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 13:43:24,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:43:23" (1/3) ... [2019-11-22 13:43:24,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7995c6e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:43:24, skipping insertion in model container [2019-11-22 13:43:24,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:24" (2/3) ... [2019-11-22 13:43:24,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7995c6e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:43:24, skipping insertion in model container [2019-11-22 13:43:24,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:43:24" (3/3) ... [2019-11-22 13:43:24,455 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-22 13:43:24,465 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 13:43:24,472 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-22 13:43:24,484 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-22 13:43:24,513 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 13:43:24,513 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-22 13:43:24,514 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 13:43:24,514 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 13:43:24,514 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 13:43:24,515 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 13:43:24,515 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 13:43:24,515 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 13:43:24,537 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-22 13:43:24,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-22 13:43:24,546 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:43:24,547 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-22 13:43:24,548 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 13:43:24,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:43:24,562 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-22 13:43:24,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-22 13:43:24,576 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867872300] [2019-11-22 13:43:24,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-22 13:43:24,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-22 13:43:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-22 13:43:24,692 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-22 13:43:24,693 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-22 13:43:24,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:43:24 BoogieIcfgContainer [2019-11-22 13:43:24,711 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-22 13:43:24,712 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-22 13:43:24,712 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-22 13:43:24,713 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-22 13:43:24,713 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:43:24" (3/4) ... [2019-11-22 13:43:24,717 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-22 13:43:24,717 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-22 13:43:24,720 INFO L168 Benchmark]: Toolchain (without parser) took 909.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -113.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 13:43:24,721 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 13:43:24,722 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.63 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 948.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-22 13:43:24,723 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -158.8 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2019-11-22 13:43:24,724 INFO L168 Benchmark]: Boogie Preprocessor took 22.86 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-22 13:43:24,725 INFO L168 Benchmark]: RCFGBuilder took 251.61 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: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-11-22 13:43:24,726 INFO L168 Benchmark]: TraceAbstraction took 264.21 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-11-22 13:43:24,727 INFO L168 Benchmark]: Witness Printer took 5.31 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 13:43:24,732 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.63 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 948.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 90.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -158.8 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.86 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 251.61 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: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 264.21 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.31 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 0.1.24-3d056a1 [2019-11-22 13:43:26,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 13:43:26,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 13:43:26,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 13:43:26,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 13:43:26,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 13:43:26,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 13:43:26,859 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 13:43:26,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 13:43:26,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 13:43:26,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 13:43:26,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 13:43:26,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 13:43:26,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 13:43:26,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 13:43:26,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 13:43:26,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 13:43:26,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 13:43:26,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 13:43:26,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 13:43:26,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 13:43:26,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 13:43:26,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 13:43:26,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 13:43:26,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 13:43:26,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 13:43:26,897 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 13:43:26,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 13:43:26,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 13:43:26,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 13:43:26,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 13:43:26,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 13:43:26,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 13:43:26,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 13:43:26,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 13:43:26,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 13:43:26,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 13:43:26,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 13:43:26,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 13:43:26,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 13:43:26,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 13:43:26,912 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2019-11-22 13:43:26,940 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 13:43:26,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 13:43:26,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 13:43:26,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 13:43:26,943 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 13:43:26,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 13:43:26,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 13:43:26,944 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-22 13:43:26,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 13:43:26,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-22 13:43:26,946 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 13:43:26,946 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-22 13:43:26,947 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-22 13:43:26,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-22 13:43:26,947 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 13:43:26,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-22 13:43:26,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 13:43:26,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 13:43:26,949 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 13:43:26,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 13:43:26,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 13:43:26,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 13:43:26,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 13:43:26,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-22 13:43:26,950 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-22 13:43:26,950 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-22 13:43:26,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-22 13:43:26,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 13:43:26,951 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2019-11-22 13:43:26,951 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6017351e7baf6c9b5817e3723e370f1f22bcdd89 [2019-11-22 13:43:27,300 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 13:43:27,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 13:43:27,327 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 13:43:27,330 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 13:43:27,330 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 13:43:27,331 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/freire1.c [2019-11-22 13:43:27,394 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/baf57b4f0/5b341cde255646f58ee799514fcc042b/FLAGd8b56694d [2019-11-22 13:43:27,799 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 13:43:27,800 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/freire1.c [2019-11-22 13:43:27,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/baf57b4f0/5b341cde255646f58ee799514fcc042b/FLAGd8b56694d [2019-11-22 13:43:28,170 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/baf57b4f0/5b341cde255646f58ee799514fcc042b [2019-11-22 13:43:28,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 13:43:28,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-22 13:43:28,176 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 13:43:28,176 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 13:43:28,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 13:43:28,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:43:28" (1/1) ... [2019-11-22 13:43:28,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63872641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:28, skipping insertion in model container [2019-11-22 13:43:28,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:43:28" (1/1) ... [2019-11-22 13:43:28,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 13:43:28,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-22 13:43:28,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:43:28,433 INFO L203 MainTranslator]: Completed pre-run [2019-11-22 13:43:28,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 13:43:28,478 INFO L208 MainTranslator]: Completed translation [2019-11-22 13:43:28,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:28 WrapperNode [2019-11-22 13:43:28,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 13:43:28,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-22 13:43:28,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-22 13:43:28,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-22 13:43:28,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:28" (1/1) ... [2019-11-22 13:43:28,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:28" (1/1) ... [2019-11-22 13:43:28,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-22 13:43:28,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 13:43:28,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 13:43:28,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 13:43:28,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:28" (1/1) ... [2019-11-22 13:43:28,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:28" (1/1) ... [2019-11-22 13:43:28,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:28" (1/1) ... [2019-11-22 13:43:28,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:28" (1/1) ... [2019-11-22 13:43:28,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:28" (1/1) ... [2019-11-22 13:43:28,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:28" (1/1) ... [2019-11-22 13:43:28,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:28" (1/1) ... [2019-11-22 13:43:28,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 13:43:28,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 13:43:28,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 13:43:28,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 13:43:28,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:28" (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 13:43:28,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 13:43:28,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 13:43:33,835 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 13:43:33,835 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-22 13:43:33,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:43:33 BoogieIcfgContainer [2019-11-22 13:43:33,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 13:43:33,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 13:43:33,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 13:43:33,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 13:43:33,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:43:28" (1/3) ... [2019-11-22 13:43:33,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765a2ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:43:33, skipping insertion in model container [2019-11-22 13:43:33,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:43:28" (2/3) ... [2019-11-22 13:43:33,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765a2ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:43:33, skipping insertion in model container [2019-11-22 13:43:33,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:43:33" (3/3) ... [2019-11-22 13:43:33,843 INFO L109 eAbstractionObserver]: Analyzing ICFG freire1.c [2019-11-22 13:43:33,853 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 13:43:33,860 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-22 13:43:33,869 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-22 13:43:33,892 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 13:43:33,892 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-22 13:43:33,893 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 13:43:33,893 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 13:43:33,893 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 13:43:33,894 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 13:43:33,894 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 13:43:33,894 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 13:43:33,906 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-22 13:43:33,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-22 13:43:33,911 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:43:33,912 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-22 13:43:33,912 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 13:43:33,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:43:33,917 INFO L82 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2019-11-22 13:43:33,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:43:33,926 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [735380034] [2019-11-22 13:43:33,927 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 13:43:36,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:43:36,945 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 13:43:36,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:43:39,973 WARN L192 SmtUtils]: Spent 1.95 s on a formula simplification that was a NOOP. DAG size: 13 [2019-11-22 13:43:44,926 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 13:43:44,926 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:43:47,207 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 13:43:49,260 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 13:43:51,333 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~a~0_8 (_ FloatingPoint 11 53))) (= ((_ fp.to_sbv 32) roundTowardZero (fp.add c_currentRoundingMode (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32)))) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode .cse0 v_ULTIMATE.start_main_~a~0_8) .cse0)) (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) (fp.div c_currentRoundingMode v_ULTIMATE.start_main_~a~0_8 ((_ to_fp 11 53) c_currentRoundingMode 2.0))))) (_ bv0 32))) is different from true [2019-11-22 13:43:51,334 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 13:43:51,335 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [735380034] [2019-11-22 13:43:51,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:43:51,336 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 8 [2019-11-22 13:43:51,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683173939] [2019-11-22 13:43:51,341 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-22 13:43:51,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:43:51,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-22 13:43:51,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=21, Unknown=3, NotChecked=18, Total=56 [2019-11-22 13:43:51,354 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 8 states. [2019-11-22 13:44:02,784 WARN L192 SmtUtils]: Spent 4.12 s on a formula simplification that was a NOOP. DAG size: 20 [2019-11-22 13:44:07,765 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 13:44:17,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:44:17,213 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2019-11-22 13:44:17,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 13:44:17,216 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2019-11-22 13:44:17,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:44:17,228 INFO L225 Difference]: With dead ends: 29 [2019-11-22 13:44:17,229 INFO L226 Difference]: Without dead ends: 11 [2019-11-22 13:44:17,233 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 23.5s TimeCoverageRelationStatistics Valid=23, Invalid=37, Unknown=8, NotChecked=42, Total=110 [2019-11-22 13:44:17,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-22 13:44:17,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2019-11-22 13:44:17,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-22 13:44:17,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-22 13:44:17,280 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2019-11-22 13:44:17,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:44:17,281 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-22 13:44:17,281 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-22 13:44:17,281 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-22 13:44:17,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-22 13:44:17,282 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 13:44:17,283 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 13:44:17,496 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-22 13:44:17,497 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-22 13:44:17,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 13:44:17,497 INFO L82 PathProgramCache]: Analyzing trace with hash 300765331, now seen corresponding path program 1 times [2019-11-22 13:44:17,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 13:44:17,498 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [975401792] [2019-11-22 13:44:17,498 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 13:44:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 13:44:17,853 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 13:44:17,854 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 13:44:19,937 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 13:44:21,996 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 13:44:21,998 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 13:44:24,080 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 13:44:26,141 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 13:44:26,147 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 13:44:32,324 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 13:44:32,331 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 13:44:32,331 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 13:44:34,398 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 13:44:36,457 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 13:44:36,632 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 13:44:36,633 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [975401792] [2019-11-22 13:44:36,633 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 13:44:36,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-22 13:44:36,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788169272] [2019-11-22 13:44:36,635 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-22 13:44:36,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 13:44:36,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-22 13:44:36,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=4, Unknown=7, NotChecked=20, Total=42 [2019-11-22 13:44:36,637 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2019-11-22 13:44:40,898 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 13:44:42,972 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 13:44:45,032 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 13:44:45,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 13:44:45,036 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-22 13:44:45,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 13:44:45,036 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-11-22 13:44:45,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 13:44:45,037 INFO L225 Difference]: With dead ends: 9 [2019-11-22 13:44:45,037 INFO L226 Difference]: Without dead ends: 0 [2019-11-22 13:44:45,038 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 13:44:45,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-22 13:44:45,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-22 13:44:45,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-22 13:44:45,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-22 13:44:45,039 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-22 13:44:45,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 13:44:45,039 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-22 13:44:45,040 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-22 13:44:45,040 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-22 13:44:45,040 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-22 13:44:45,242 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-22 13:44:45,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-22 13:44:57,734 WARN L192 SmtUtils]: Spent 12.45 s on a formula simplification that was a NOOP. DAG size: 22 [2019-11-22 13:45:22,707 WARN L192 SmtUtils]: Spent 24.97 s on a formula simplification that was a NOOP. DAG size: 30 [2019-11-22 13:45:22,713 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-22 13:45:22,714 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-22 13:45:22,714 INFO L444 ceAbstractionStarter]: For program point L13(lines 13 14) no Hoare annotation was computed. [2019-11-22 13:45:22,714 INFO L444 ceAbstractionStarter]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2019-11-22 13:45:22,714 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 13:45:22,714 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-22 13:45:22,715 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-22 13:45:22,715 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-22 13:45:22,715 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2019-11-22 13:45:22,715 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 13:45:22,715 INFO L444 ceAbstractionStarter]: For program point L26-3(lines 26 33) no Hoare annotation was computed. [2019-11-22 13:45:22,716 INFO L444 ceAbstractionStarter]: For program point L12(lines 12 15) no Hoare annotation was computed. [2019-11-22 13:45:22,717 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 13:45:22,717 INFO L444 ceAbstractionStarter]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2019-11-22 13:45:22,717 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 13:45:22,726 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 13:45:22,729 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,729 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,730 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,730 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,731 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,731 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,731 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,734 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 13:45:22,735 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,736 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,736 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,736 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,737 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 13:45:22,740 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-22 13:45:22,740 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,741 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,741 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,741 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,742 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,742 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,743 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,743 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,743 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,744 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,745 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 13:45:22,745 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-22 13:45:22,746 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,746 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,746 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,747 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,747 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,748 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,748 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,748 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,749 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,749 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:45:22 BoogieIcfgContainer [2019-11-22 13:45:22,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-22 13:45:22,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-22 13:45:22,753 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-22 13:45:22,753 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-22 13:45:22,754 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:43:33" (3/4) ... [2019-11-22 13:45:22,759 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-22 13:45:22,770 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-22 13:45:22,770 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-22 13:45:22,771 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-22 13:45:22,822 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-22 13:45:22,823 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-22 13:45:22,825 INFO L168 Benchmark]: Toolchain (without parser) took 114650.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -73.0 MB). Peak memory consumption was 62.3 MB. Max. memory is 11.5 GB. [2019-11-22 13:45:22,826 INFO L168 Benchmark]: CDTParser took 0.87 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 13:45:22,826 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.76 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-22 13:45:22,827 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -182.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-22 13:45:22,828 INFO L168 Benchmark]: Boogie Preprocessor took 33.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-22 13:45:22,829 INFO L168 Benchmark]: RCFGBuilder took 5223.11 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-11-22 13:45:22,833 INFO L168 Benchmark]: TraceAbstraction took 108915.17 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: 73.3 MB). Peak memory consumption was 73.3 MB. Max. memory is 11.5 GB. [2019-11-22 13:45:22,834 INFO L168 Benchmark]: Witness Printer took 70.05 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 13:45:22,838 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 304.76 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 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 98.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -182.2 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 5223.11 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 108915.17 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: 73.3 MB). Peak memory consumption was 73.3 MB. Max. memory is 11.5 GB. * Witness Printer took 70.05 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 13:45:22,869 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 13:45:22,870 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,870 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,873 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,874 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,874 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 13:45:22,875 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,875 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,875 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,876 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,876 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,876 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,877 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 13:45:22,884 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 13:45:22,885 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-22 13:45:22,885 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,885 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,886 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,886 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,886 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,887 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,887 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,887 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,890 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardZero [2019-11-22 13:45:22,892 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-22 13:45:22,894 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,894 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-22 13:45:22,899 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: 108.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 34.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 37.4s, HoareTripleCheckerStatistics: 12 SDtfs, 18 SDslu, 11 SDs, 0 SdLazy, 15 SolverSat, 4 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 13.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 44.2s 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, 37.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 33.2s 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...