./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 025d5a27 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2c1dd836bd94b58992d0afa5dcab22080692fc8a ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2c1dd836bd94b58992d0afa5dcab22080692fc8a ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-025d5a2 [2019-11-26 16:57:58,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 16:57:58,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 16:57:58,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 16:57:58,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 16:57:58,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 16:57:58,535 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 16:57:58,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 16:57:58,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 16:57:58,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 16:57:58,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 16:57:58,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 16:57:58,580 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 16:57:58,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 16:57:58,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 16:57:58,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 16:57:58,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 16:57:58,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 16:57:58,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 16:57:58,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 16:57:58,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 16:57:58,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 16:57:58,638 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 16:57:58,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 16:57:58,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 16:57:58,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 16:57:58,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 16:57:58,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 16:57:58,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 16:57:58,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 16:57:58,658 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 16:57:58,659 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 16:57:58,661 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 16:57:58,665 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 16:57:58,668 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 16:57:58,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 16:57:58,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 16:57:58,674 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 16:57:58,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 16:57:58,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 16:57:58,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 16:57:58,680 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-26 16:57:58,720 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 16:57:58,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 16:57:58,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 16:57:58,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 16:57:58,728 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 16:57:58,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 16:57:58,729 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 16:57:58,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 16:57:58,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 16:57:58,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 16:57:58,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 16:57:58,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 16:57:58,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 16:57:58,735 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 16:57:58,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 16:57:58,737 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 16:57:58,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 16:57:58,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 16:57:58,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 16:57:58,738 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 16:57:58,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 16:57:58,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 16:57:58,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 16:57:58,742 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 16:57:58,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 16:57:58,743 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-26 16:57:58,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 16:57:58,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 16:57:58,744 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c1dd836bd94b58992d0afa5dcab22080692fc8a [2019-11-26 16:57:59,295 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 16:57:59,326 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 16:57:59,334 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 16:57:59,339 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 16:57:59,340 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 16:57:59,341 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c [2019-11-26 16:57:59,510 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b886253d/3b57d97d60d0438e918ee961de89e5eb/FLAG805da5581 [2019-11-26 16:58:00,613 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 16:58:00,617 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c [2019-11-26 16:58:00,633 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b886253d/3b57d97d60d0438e918ee961de89e5eb/FLAG805da5581 [2019-11-26 16:58:00,673 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b886253d/3b57d97d60d0438e918ee961de89e5eb [2019-11-26 16:58:00,681 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 16:58:00,686 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-26 16:58:00,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 16:58:00,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 16:58:00,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 16:58:00,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 04:58:00" (1/1) ... [2019-11-26 16:58:00,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@673d4137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:00, skipping insertion in model container [2019-11-26 16:58:00,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 04:58:00" (1/1) ... [2019-11-26 16:58:00,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 16:58:00,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 16:58:01,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 16:58:01,274 INFO L203 MainTranslator]: Completed pre-run [2019-11-26 16:58:01,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 16:58:01,409 INFO L208 MainTranslator]: Completed translation [2019-11-26 16:58:01,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:01 WrapperNode [2019-11-26 16:58:01,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 16:58:01,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 16:58:01,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 16:58:01,419 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 16:58:01,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:01" (1/1) ... [2019-11-26 16:58:01,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:01" (1/1) ... [2019-11-26 16:58:01,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 16:58:01,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 16:58:01,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 16:58:01,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 16:58:01,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:01" (1/1) ... [2019-11-26 16:58:01,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:01" (1/1) ... [2019-11-26 16:58:01,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:01" (1/1) ... [2019-11-26 16:58:01,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:01" (1/1) ... [2019-11-26 16:58:01,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:01" (1/1) ... [2019-11-26 16:58:01,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:01" (1/1) ... [2019-11-26 16:58:01,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:01" (1/1) ... [2019-11-26 16:58:01,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 16:58:01,590 INFO L168 Benchmark]: Toolchain (without parser) took 901.09 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 985.9 MB in the end (delta: -18.4 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 16:58:01,592 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 16:58:01,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 722.54 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 991.6 MB in the end (delta: -24.2 MB). Peak memory consumption was 20.3 MB. Max. memory is 12.5 GB. [2019-11-26 16:58:01,611 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.71 ms. Allocated memory is still 1.0 GB. Free memory is still 991.6 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 16:58:01,615 INFO L168 Benchmark]: Boogie Preprocessor took 62.24 ms. Allocated memory is still 1.0 GB. Free memory was 991.6 MB in the beginning and 985.9 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-26 16:58:01,624 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 722.54 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 991.6 MB in the end (delta: -24.2 MB). Peak memory consumption was 20.3 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 102.71 ms. Allocated memory is still 1.0 GB. Free memory is still 991.6 MB. There was no memory consumed. Max. memory is 12.5 GB. * Boogie Preprocessor took 62.24 ms. Allocated memory is still 1.0 GB. Free memory was 991.6 MB in the beginning and 985.9 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-025d5a2 [2019-11-26 16:58:05,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 16:58:05,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 16:58:05,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 16:58:05,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 16:58:05,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 16:58:05,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 16:58:05,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 16:58:05,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 16:58:05,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 16:58:05,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 16:58:05,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 16:58:05,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 16:58:05,482 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 16:58:05,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 16:58:05,494 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 16:58:05,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 16:58:05,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 16:58:05,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 16:58:05,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 16:58:05,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 16:58:05,527 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 16:58:05,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 16:58:05,537 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 16:58:05,542 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 16:58:05,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 16:58:05,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 16:58:05,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 16:58:05,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 16:58:05,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 16:58:05,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 16:58:05,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 16:58:05,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 16:58:05,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 16:58:05,564 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 16:58:05,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 16:58:05,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 16:58:05,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 16:58:05,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 16:58:05,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 16:58:05,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 16:58:05,578 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-26 16:58:05,615 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 16:58:05,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 16:58:05,624 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 16:58:05,625 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 16:58:05,625 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 16:58:05,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 16:58:05,626 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 16:58:05,626 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 16:58:05,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 16:58:05,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 16:58:05,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 16:58:05,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 16:58:05,630 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 16:58:05,631 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 16:58:05,633 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 16:58:05,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 16:58:05,633 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 16:58:05,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 16:58:05,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 16:58:05,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 16:58:05,636 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 16:58:05,636 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 16:58:05,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 16:58:05,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 16:58:05,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 16:58:05,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 16:58:05,640 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-26 16:58:05,640 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 16:58:05,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 16:58:05,641 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 16:58:05,645 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c1dd836bd94b58992d0afa5dcab22080692fc8a [2019-11-26 16:58:06,264 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 16:58:06,294 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 16:58:06,301 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 16:58:06,306 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 16:58:06,309 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 16:58:06,311 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c [2019-11-26 16:58:06,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bcf38e0e/5f489e0bbd16446da8e375eb2aac4bf0/FLAGc10c0e9f4 [2019-11-26 16:58:07,598 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 16:58:07,600 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/interpolation2.c.p+cfa-reducer.c [2019-11-26 16:58:07,623 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bcf38e0e/5f489e0bbd16446da8e375eb2aac4bf0/FLAGc10c0e9f4 [2019-11-26 16:58:07,663 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bcf38e0e/5f489e0bbd16446da8e375eb2aac4bf0 [2019-11-26 16:58:07,674 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 16:58:07,679 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-26 16:58:07,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 16:58:07,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 16:58:07,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 16:58:07,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 04:58:07" (1/1) ... [2019-11-26 16:58:07,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6efee5cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:07, skipping insertion in model container [2019-11-26 16:58:07,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 04:58:07" (1/1) ... [2019-11-26 16:58:07,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 16:58:07,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 16:58:08,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 16:58:08,327 INFO L203 MainTranslator]: Completed pre-run [2019-11-26 16:58:08,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 16:58:08,472 INFO L208 MainTranslator]: Completed translation [2019-11-26 16:58:08,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:08 WrapperNode [2019-11-26 16:58:08,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 16:58:08,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 16:58:08,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 16:58:08,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 16:58:08,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:08" (1/1) ... [2019-11-26 16:58:08,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:08" (1/1) ... [2019-11-26 16:58:08,587 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 16:58:08,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 16:58:08,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 16:58:08,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 16:58:08,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:08" (1/1) ... [2019-11-26 16:58:08,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:08" (1/1) ... [2019-11-26 16:58:08,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:08" (1/1) ... [2019-11-26 16:58:08,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:08" (1/1) ... [2019-11-26 16:58:08,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:08" (1/1) ... [2019-11-26 16:58:08,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:08" (1/1) ... [2019-11-26 16:58:08,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 04:58:08" (1/1) ... [2019-11-26 16:58:08,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 16:58:08,682 INFO L168 Benchmark]: Toolchain (without parser) took 998.26 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 980.1 MB in the end (delta: -12.6 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 16:58:08,683 INFO L168 Benchmark]: CDTParser took 1.65 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 16:58:08,689 INFO L168 Benchmark]: CACSL2BoogieTranslator took 788.73 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 991.5 MB in the end (delta: -24.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 12.5 GB. [2019-11-26 16:58:08,690 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.11 ms. Allocated memory is still 1.0 GB. Free memory is still 991.5 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 16:58:08,691 INFO L168 Benchmark]: Boogie Preprocessor took 86.40 ms. Allocated memory is still 1.0 GB. Free memory was 991.5 MB in the beginning and 980.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. [2019-11-26 16:58:08,712 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.65 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 788.73 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 991.5 MB in the end (delta: -24.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 12.5 GB. * Boogie Procedure Inliner took 106.11 ms. Allocated memory is still 1.0 GB. Free memory is still 991.5 MB. There was no memory consumed. Max. memory is 12.5 GB. * Boogie Preprocessor took 86.40 ms. Allocated memory is still 1.0 GB. Free memory was 991.5 MB in the beginning and 980.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...