./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/neural-networks/sqrt_2_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/neural-networks/sqrt_2_safe.c-amalgamation.i -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 --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 38d8ad489c2d829f8fa31ff25be0a6dc25c6c453e5aa0379bc09295e0ef03abe --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 21:50:36,399 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 21:50:36,473 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 21:50:36,479 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 21:50:36,479 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 21:50:36,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 21:50:36,515 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 21:50:36,515 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 21:50:36,516 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 21:50:36,516 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 21:50:36,517 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 21:50:36,517 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 21:50:36,518 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 21:50:36,518 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 21:50:36,518 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 21:50:36,519 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 21:50:36,519 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 21:50:36,520 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 21:50:36,520 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 21:50:36,520 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 21:50:36,522 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 21:50:36,524 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 21:50:36,524 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 21:50:36,524 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 21:50:36,524 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 21:50:36,525 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 21:50:36,525 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 21:50:36,525 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 21:50:36,525 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 21:50:36,526 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 21:50:36,526 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 21:50:36,526 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 21:50:36,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 21:50:36,527 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 21:50:36,527 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 21:50:36,528 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 21:50:36,528 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 21:50:36,529 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 21:50:36,529 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 21:50:36,529 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 21:50:36,529 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 21:50:36,530 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 21:50:36,530 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38d8ad489c2d829f8fa31ff25be0a6dc25c6c453e5aa0379bc09295e0ef03abe [2024-11-09 21:50:36,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 21:50:36,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 21:50:36,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 21:50:36,836 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 21:50:36,837 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 21:50:36,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/sqrt_2_safe.c-amalgamation.i [2024-11-09 21:50:38,317 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 21:50:38,605 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 21:50:38,606 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/sqrt_2_safe.c-amalgamation.i [2024-11-09 21:50:38,632 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7938d588d/408235c051904e6ea8ae1c1d48696ddb/FLAGae3d4ae75 [2024-11-09 21:50:38,892 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7938d588d/408235c051904e6ea8ae1c1d48696ddb [2024-11-09 21:50:38,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 21:50:38,896 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 21:50:38,897 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 21:50:38,898 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 21:50:38,902 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 21:50:38,903 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:50:38" (1/1) ... [2024-11-09 21:50:38,904 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28334b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:50:38, skipping insertion in model container [2024-11-09 21:50:38,904 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:50:38" (1/1) ... [2024-11-09 21:50:38,946 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 21:50:39,423 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3125) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:255) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1611) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:271) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1503) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:253) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.translateInitializer(CHandler.java:3196) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:3041) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:144) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1237) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:215) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1167) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1150) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1638) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3519) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2508) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:642) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-09 21:50:39,429 INFO L158 Benchmark]: Toolchain (without parser) took 532.15ms. Allocated memory is still 174.1MB. Free memory was 116.0MB in the beginning and 99.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 21:50:39,430 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 174.1MB. Free memory is still 133.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 21:50:39,430 INFO L158 Benchmark]: CACSL2BoogieTranslator took 529.92ms. Allocated memory is still 174.1MB. Free memory was 116.0MB in the beginning and 99.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 21:50:39,431 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 174.1MB. Free memory is still 133.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 529.92ms. Allocated memory is still 174.1MB. Free memory was 116.0MB in the beginning and 99.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:627) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/neural-networks/sqrt_2_safe.c-amalgamation.i -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 --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 38d8ad489c2d829f8fa31ff25be0a6dc25c6c453e5aa0379bc09295e0ef03abe --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 21:50:41,569 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 21:50:41,667 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-09 21:50:41,671 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 21:50:41,672 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 21:50:41,696 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 21:50:41,697 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 21:50:41,698 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 21:50:41,698 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 21:50:41,699 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 21:50:41,700 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 21:50:41,700 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 21:50:41,701 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 21:50:41,701 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 21:50:41,703 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 21:50:41,703 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 21:50:41,703 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 21:50:41,704 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 21:50:41,704 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 21:50:41,704 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 21:50:41,708 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 21:50:41,709 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 21:50:41,709 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 21:50:41,709 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 21:50:41,710 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 21:50:41,710 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 21:50:41,710 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 21:50:41,710 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 21:50:41,711 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 21:50:41,711 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 21:50:41,711 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 21:50:41,711 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 21:50:41,711 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 21:50:41,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 21:50:41,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 21:50:41,712 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 21:50:41,712 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 21:50:41,713 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 21:50:41,713 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-09 21:50:41,713 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 21:50:41,713 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 21:50:41,714 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 21:50:41,714 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 21:50:41,714 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 21:50:41,714 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38d8ad489c2d829f8fa31ff25be0a6dc25c6c453e5aa0379bc09295e0ef03abe [2024-11-09 21:50:42,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 21:50:42,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 21:50:42,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 21:50:42,095 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 21:50:42,096 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 21:50:42,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/sqrt_2_safe.c-amalgamation.i [2024-11-09 21:50:43,781 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 21:50:44,098 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 21:50:44,099 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/sqrt_2_safe.c-amalgamation.i [2024-11-09 21:50:44,128 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91c4da78c/251849cb07064a8496cd6576fd51751c/FLAG953b9a6c4 [2024-11-09 21:50:44,149 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91c4da78c/251849cb07064a8496cd6576fd51751c [2024-11-09 21:50:44,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 21:50:44,155 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 21:50:44,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 21:50:44,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 21:50:44,164 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 21:50:44,165 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:50:44" (1/1) ... [2024-11-09 21:50:44,166 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@111ae27d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:50:44, skipping insertion in model container [2024-11-09 21:50:44,167 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:50:44" (1/1) ... [2024-11-09 21:50:44,235 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 21:50:44,896 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/sqrt_2_safe.c-amalgamation.i[63034,63047] [2024-11-09 21:50:44,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 21:50:44,918 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 21:50:44,990 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/sqrt_2_safe.c-amalgamation.i[63034,63047] [2024-11-09 21:50:44,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 21:50:45,107 INFO L204 MainTranslator]: Completed translation [2024-11-09 21:50:45,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:50:45 WrapperNode [2024-11-09 21:50:45,108 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 21:50:45,109 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 21:50:45,109 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 21:50:45,109 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 21:50:45,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:50:45" (1/1) ... [2024-11-09 21:50:45,145 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:50:45" (1/1) ... [2024-11-09 21:50:45,170 INFO L138 Inliner]: procedures = 558, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2024-11-09 21:50:45,171 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 21:50:45,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 21:50:45,172 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 21:50:45,172 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 21:50:45,183 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:50:45" (1/1) ... [2024-11-09 21:50:45,183 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:50:45" (1/1) ... [2024-11-09 21:50:45,190 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:50:45" (1/1) ... [2024-11-09 21:50:45,205 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2024-11-09 21:50:45,206 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:50:45" (1/1) ... [2024-11-09 21:50:45,206 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:50:45" (1/1) ... [2024-11-09 21:50:45,212 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:50:45" (1/1) ... [2024-11-09 21:50:45,213 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:50:45" (1/1) ... [2024-11-09 21:50:45,214 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:50:45" (1/1) ... [2024-11-09 21:50:45,216 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:50:45" (1/1) ... [2024-11-09 21:50:45,219 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 21:50:45,220 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 21:50:45,220 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 21:50:45,220 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 21:50:45,222 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:50:45" (1/1) ... [2024-11-09 21:50:45,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 21:50:45,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 21:50:45,257 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 21:50:45,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 21:50:45,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-09 21:50:45,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-09 21:50:45,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 21:50:45,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 21:50:45,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 21:50:45,431 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 21:50:45,436 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 21:50:49,612 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-09 21:50:49,613 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 21:50:49,623 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 21:50:49,624 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 21:50:49,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 09:50:49 BoogieIcfgContainer [2024-11-09 21:50:49,624 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 21:50:49,626 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 21:50:49,626 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 21:50:49,630 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 21:50:49,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:50:44" (1/3) ... [2024-11-09 21:50:49,631 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d06c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:50:49, skipping insertion in model container [2024-11-09 21:50:49,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:50:45" (2/3) ... [2024-11-09 21:50:49,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d06c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:50:49, skipping insertion in model container [2024-11-09 21:50:49,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 09:50:49" (3/3) ... [2024-11-09 21:50:49,633 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_2_safe.c-amalgamation.i [2024-11-09 21:50:49,653 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 21:50:49,653 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 21:50:49,730 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 21:50:49,738 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5b1ecf80, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 21:50:49,739 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 21:50:49,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 21:50:49,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 21:50:49,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 21:50:49,752 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 21:50:49,753 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 21:50:49,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 21:50:49,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1211904766, now seen corresponding path program 1 times [2024-11-09 21:50:49,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 21:50:49,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1251175189] [2024-11-09 21:50:49,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 21:50:49,779 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 21:50:49,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 21:50:49,783 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 21:50:49,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 21:50:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 21:50:49,952 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 21:50:49,956 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 21:50:49,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 21:50:49,974 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 21:50:49,974 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 21:50:49,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1251175189] [2024-11-09 21:50:49,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1251175189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 21:50:49,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 21:50:49,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 21:50:49,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992899049] [2024-11-09 21:50:49,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 21:50:49,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 21:50:49,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 21:50:50,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 21:50:50,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 21:50:50,011 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 21:50:50,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 21:50:50,023 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2024-11-09 21:50:50,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 21:50:50,026 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-09 21:50:50,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 21:50:50,034 INFO L225 Difference]: With dead ends: 19 [2024-11-09 21:50:50,035 INFO L226 Difference]: Without dead ends: 7 [2024-11-09 21:50:50,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 21:50:50,042 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 21:50:50,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 21:50:50,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2024-11-09 21:50:50,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2024-11-09 21:50:50,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 21:50:50,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2024-11-09 21:50:50,077 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2024-11-09 21:50:50,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 21:50:50,078 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2024-11-09 21:50:50,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 21:50:50,078 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2024-11-09 21:50:50,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 21:50:50,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 21:50:50,079 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 21:50:50,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-09 21:50:50,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 21:50:50,280 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 21:50:50,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 21:50:50,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1211934557, now seen corresponding path program 1 times [2024-11-09 21:50:50,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 21:50:50,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37477039] [2024-11-09 21:50:50,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 21:50:50,282 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 21:50:50,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 21:50:50,285 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 21:50:50,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-09 21:50:58,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 21:50:58,328 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 21:50:58,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 21:51:04,955 WARN L286 SmtUtils]: Spent 6.45s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 21:51:13,113 WARN L286 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 21:51:20,466 WARN L286 SmtUtils]: Spent 7.35s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 21:51:24,514 WARN L851 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~x~0#1_7| (_ FloatingPoint 8 24))) (and (fp.geq |v_ULTIMATE.start_main_~x~0#1_7| (_ +zero 8 24)) (= (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~x~0#1_7|) .cse0)) |c_ULTIMATE.start_main_~z~0#1|) (= (fp.sqrt roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_7|) |c_ULTIMATE.start_main_~y~0#1|))) is different from false [2024-11-09 21:51:28,552 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~x~0#1_7| (_ FloatingPoint 8 24))) (and (fp.geq |v_ULTIMATE.start_main_~x~0#1_7| (_ +zero 8 24)) (= (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~x~0#1_7|) .cse0)) |c_ULTIMATE.start_main_~z~0#1|) (= (fp.sqrt roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_7|) |c_ULTIMATE.start_main_~y~0#1|))) is different from true [2024-11-09 21:51:40,700 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 21:51:48,864 WARN L286 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 21:51:52,912 WARN L851 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~x~0#1_7| (_ FloatingPoint 8 24))) (and (not (fp.leq (fp.sqrt roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_7|) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~x~0#1_7|) .cse0)))) (fp.geq |v_ULTIMATE.start_main_~x~0#1_7| (_ +zero 8 24)))) is different from false [2024-11-09 21:51:56,953 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~x~0#1_7| (_ FloatingPoint 8 24))) (and (not (fp.leq (fp.sqrt roundNearestTiesToEven |v_ULTIMATE.start_main_~x~0#1_7|) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 |v_ULTIMATE.start_main_~x~0#1_7|) .cse0)))) (fp.geq |v_ULTIMATE.start_main_~x~0#1_7| (_ +zero 8 24)))) is different from true [2024-11-09 21:51:56,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 21:51:56,954 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 21:51:56,954 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 21:51:56,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [37477039] [2024-11-09 21:51:56,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [37477039] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 21:51:56,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 21:51:56,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 21:51:56,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931758280] [2024-11-09 21:51:56,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 21:51:56,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 21:51:56,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 21:51:56,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 21:51:56,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=6, Unknown=4, NotChecked=10, Total=30 [2024-11-09 21:51:56,958 INFO L87 Difference]: Start difference. First operand 7 states and 6 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 21:52:01,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 21:52:05,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers []