./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/sqrt_2_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/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-wip.dd.update-z3-fca748b-m [2024-11-19 20:32:15,974 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 20:32:16,021 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 20:32:16,025 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 20:32:16,026 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 20:32:16,040 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 20:32:16,040 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 20:32:16,041 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 20:32:16,041 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 20:32:16,041 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 20:32:16,042 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 20:32:16,042 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 20:32:16,042 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 20:32:16,042 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 20:32:16,043 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 20:32:16,043 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 20:32:16,043 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 20:32:16,043 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 20:32:16,044 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 20:32:16,044 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 20:32:16,044 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 20:32:16,045 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 20:32:16,045 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 20:32:16,045 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 20:32:16,045 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 20:32:16,045 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 20:32:16,046 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 20:32:16,046 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 20:32:16,046 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 20:32:16,046 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 20:32:16,047 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 20:32:16,047 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 20:32:16,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 20:32:16,047 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 20:32:16,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 20:32:16,048 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 20:32:16,048 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 20:32:16,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 20:32:16,049 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 20:32:16,049 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 20:32:16,049 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 20:32:16,052 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 20:32:16,052 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38d8ad489c2d829f8fa31ff25be0a6dc25c6c453e5aa0379bc09295e0ef03abe [2024-11-19 20:32:16,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 20:32:16,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 20:32:16,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 20:32:16,298 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 20:32:16,298 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 20:32:16,299 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/sqrt_2_safe.c-amalgamation.i [2024-11-19 20:32:17,558 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 20:32:17,792 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 20:32:17,793 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/sqrt_2_safe.c-amalgamation.i [2024-11-19 20:32:17,810 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d555be13e/aa1752e1d3444186ae6064f7b3165d05/FLAG16735487c [2024-11-19 20:32:17,822 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d555be13e/aa1752e1d3444186ae6064f7b3165d05 [2024-11-19 20:32:17,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 20:32:17,825 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 20:32:17,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 20:32:17,827 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 20:32:17,831 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 20:32:17,832 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:32:17" (1/1) ... [2024-11-19 20:32:17,832 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ce6fc01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:17, skipping insertion in model container [2024-11-19 20:32:17,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:32:17" (1/1) ... [2024-11-19 20:32:17,872 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 20:32:18,261 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:1601) 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:1496) 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:3183) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleIASTDeclarator(CHandler.java:3028) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2271) 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:1233) 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:1165) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1148) 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:1628) 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:3506) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2498) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:640) 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) [2024-11-19 20:32:18,265 INFO L158 Benchmark]: Toolchain (without parser) took 439.15ms. Allocated memory is still 167.8MB. Free memory was 137.0MB in the beginning and 119.5MB in the end (delta: 17.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-19 20:32:18,266 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 85.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 20:32:18,266 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.62ms. Allocated memory is still 167.8MB. Free memory was 136.2MB in the beginning and 119.5MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-19 20:32:18,267 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 85.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 436.62ms. Allocated memory is still 167.8MB. Free memory was 136.2MB in the beginning and 119.5MB 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/current/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 /storage/repos/ultimate/releaseScripts/default/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-wip.dd.update-z3-fca748b-m [2024-11-19 20:32:19,786 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 20:32:19,848 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-19 20:32:19,852 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 20:32:19,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 20:32:19,880 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 20:32:19,881 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 20:32:19,881 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 20:32:19,881 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 20:32:19,881 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 20:32:19,882 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 20:32:19,882 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 20:32:19,882 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 20:32:19,883 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 20:32:19,883 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 20:32:19,883 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 20:32:19,885 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 20:32:19,886 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 20:32:19,887 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 20:32:19,887 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 20:32:19,888 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 20:32:19,888 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 20:32:19,888 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 20:32:19,888 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 20:32:19,889 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-19 20:32:19,889 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 20:32:19,889 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-19 20:32:19,889 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 20:32:19,889 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 20:32:19,890 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 20:32:19,890 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 20:32:19,890 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 20:32:19,890 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 20:32:19,890 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 20:32:19,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 20:32:19,891 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 20:32:19,891 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 20:32:19,891 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 20:32:19,891 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-19 20:32:19,892 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-19 20:32:19,892 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 20:32:19,892 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 20:32:19,892 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 20:32:19,892 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 20:32:19,893 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38d8ad489c2d829f8fa31ff25be0a6dc25c6c453e5aa0379bc09295e0ef03abe [2024-11-19 20:32:20,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 20:32:20,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 20:32:20,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 20:32:20,173 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 20:32:20,173 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 20:32:20,174 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/sqrt_2_safe.c-amalgamation.i [2024-11-19 20:32:21,508 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 20:32:21,738 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 20:32:21,738 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/sqrt_2_safe.c-amalgamation.i [2024-11-19 20:32:21,759 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0d8c33dc/2dd8232fdde84dc1a96dbd6faaedb150/FLAG58a4377be [2024-11-19 20:32:21,773 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0d8c33dc/2dd8232fdde84dc1a96dbd6faaedb150 [2024-11-19 20:32:21,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 20:32:21,776 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 20:32:21,778 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 20:32:21,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 20:32:21,783 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 20:32:21,784 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:32:21" (1/1) ... [2024-11-19 20:32:21,785 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d2e5f85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:21, skipping insertion in model container [2024-11-19 20:32:21,785 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:32:21" (1/1) ... [2024-11-19 20:32:21,827 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 20:32:22,230 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] [2024-11-19 20:32:22,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 20:32:22,250 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 20:32:22,295 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] [2024-11-19 20:32:22,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 20:32:22,403 INFO L204 MainTranslator]: Completed translation [2024-11-19 20:32:22,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:22 WrapperNode [2024-11-19 20:32:22,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 20:32:22,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 20:32:22,406 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 20:32:22,406 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 20:32:22,411 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:22" (1/1) ... [2024-11-19 20:32:22,434 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:22" (1/1) ... [2024-11-19 20:32:22,451 INFO L138 Inliner]: procedures = 558, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2024-11-19 20:32:22,451 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 20:32:22,452 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 20:32:22,452 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 20:32:22,452 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 20:32:22,472 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:22" (1/1) ... [2024-11-19 20:32:22,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:22" (1/1) ... [2024-11-19 20:32:22,474 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:22" (1/1) ... [2024-11-19 20:32:22,489 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]. [2024-11-19 20:32:22,490 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:22" (1/1) ... [2024-11-19 20:32:22,490 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:22" (1/1) ... [2024-11-19 20:32:22,498 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:22" (1/1) ... [2024-11-19 20:32:22,499 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:22" (1/1) ... [2024-11-19 20:32:22,501 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:22" (1/1) ... [2024-11-19 20:32:22,502 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:22" (1/1) ... [2024-11-19 20:32:22,505 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 20:32:22,506 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 20:32:22,507 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 20:32:22,507 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 20:32:22,508 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:22" (1/1) ... [2024-11-19 20:32:22,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 20:32:22,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 20:32:22,545 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) [2024-11-19 20:32:22,553 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 [2024-11-19 20:32:22,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-19 20:32:22,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-19 20:32:22,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 20:32:22,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 20:32:22,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 20:32:22,670 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 20:32:22,672 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 20:32:25,749 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-19 20:32:25,749 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 20:32:25,758 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 20:32:25,759 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 20:32:25,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:32:25 BoogieIcfgContainer [2024-11-19 20:32:25,760 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 20:32:25,761 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 20:32:25,761 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 20:32:25,763 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 20:32:25,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:32:21" (1/3) ... [2024-11-19 20:32:25,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a42c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:32:25, skipping insertion in model container [2024-11-19 20:32:25,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:32:22" (2/3) ... [2024-11-19 20:32:25,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a42c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:32:25, skipping insertion in model container [2024-11-19 20:32:25,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:32:25" (3/3) ... [2024-11-19 20:32:25,765 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_2_safe.c-amalgamation.i [2024-11-19 20:32:25,776 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 20:32:25,776 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 20:32:25,812 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 20:32:25,817 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;@7b35284, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 20:32:25,818 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 20:32:25,823 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) [2024-11-19 20:32:25,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-19 20:32:25,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 20:32:25,827 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 20:32:25,828 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 20:32:25,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 20:32:25,832 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2024-11-19 20:32:25,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 20:32:25,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832946621] [2024-11-19 20:32:25,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:32:25,841 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 [2024-11-19 20:32:25,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 20:32:25,844 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) [2024-11-19 20:32:25,845 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 [2024-11-19 20:32:25,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:32:25,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 20:32:25,973 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 20:32:25,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 20:32:25,986 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 20:32:25,987 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-19 20:32:25,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832946621] [2024-11-19 20:32:25,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832946621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 20:32:25,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 20:32:25,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 20:32:25,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583634726] [2024-11-19 20:32:25,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 20:32:25,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 20:32:25,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-19 20:32:26,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 20:32:26,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 20:32:26,007 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) [2024-11-19 20:32:26,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 20:32:26,015 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2024-11-19 20:32:26,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 20:32:26,016 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 [2024-11-19 20:32:26,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 20:32:26,021 INFO L225 Difference]: With dead ends: 19 [2024-11-19 20:32:26,021 INFO L226 Difference]: Without dead ends: 7 [2024-11-19 20:32:26,023 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 [2024-11-19 20:32:26,027 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 [2024-11-19 20:32:26,028 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] [2024-11-19 20:32:26,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2024-11-19 20:32:26,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2024-11-19 20:32:26,046 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) [2024-11-19 20:32:26,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2024-11-19 20:32:26,053 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2024-11-19 20:32:26,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 20:32:26,053 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2024-11-19 20:32:26,054 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) [2024-11-19 20:32:26,054 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2024-11-19 20:32:26,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-19 20:32:26,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 20:32:26,054 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 20:32:26,060 INFO L552 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)] Ended with exit code 0 [2024-11-19 20:32:26,255 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 [2024-11-19 20:32:26,259 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 20:32:26,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 20:32:26,260 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2024-11-19 20:32:26,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-19 20:32:26,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202476300] [2024-11-19 20:32:26,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 20:32:26,261 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 [2024-11-19 20:32:26,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-19 20:32:26,264 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) [2024-11-19 20:32:26,266 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 [2024-11-19 20:32:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 20:32:29,441 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 20:32:29,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 20:32:37,706 WARN L286 SmtUtils]: Spent 8.13s 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) [2024-11-19 20:32:45,409 WARN L286 SmtUtils]: Spent 7.70s 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) [2024-11-19 20:32:53,502 WARN L286 SmtUtils]: Spent 8.09s 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) [2024-11-19 20:32:57,549 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 [2024-11-19 20:33:01,583 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 [2024-11-19 20:33:12,981 WARN L286 SmtUtils]: Spent 7.34s 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) [2024-11-19 20:33:19,466 WARN L286 SmtUtils]: Spent 6.48s 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) [2024-11-19 20:33:23,510 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 [2024-11-19 20:33:27,543 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 [2024-11-19 20:33:27,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 20:33:27,544 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 20:33:27,544 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-19 20:33:27,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202476300] [2024-11-19 20:33:27,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202476300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 20:33:27,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 20:33:27,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 20:33:27,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362761378] [2024-11-19 20:33:27,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 20:33:27,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 20:33:27,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-19 20:33:27,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 20:33:27,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=6, Unknown=4, NotChecked=10, Total=30 [2024-11-19 20:33:27,547 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) [2024-11-19 20:33:31,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-19 20:33:35,684 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 [] [2024-11-19 20:33:39,774 WARN L851 $PredicateComparison]: unable to prove that (and (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|))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2024-11-19 20:33:39,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 20:33:39,782 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2024-11-19 20:33:39,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 20:33:39,782 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 6 [2024-11-19 20:33:39,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 20:33:39,782 INFO L225 Difference]: With dead ends: 7 [2024-11-19 20:33:39,782 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 20:33:39,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=12, Invalid=7, Unknown=5, NotChecked=18, Total=42 [2024-11-19 20:33:39,783 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-19 20:33:39,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 2 Unknown, 11 Unchecked, 8.1s Time] [2024-11-19 20:33:39,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 20:33:39,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 20:33:39,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-19 20:33:39,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 20:33:39,785 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2024-11-19 20:33:39,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 20:33:39,785 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 20:33:39,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2024-11-19 20:33:39,785 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 20:33:39,785 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 20:33:39,787 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 20:33:39,794 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 (3)] Forceful destruction successful, exit code 0 [2024-11-19 20:33:39,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /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 [2024-11-19 20:33:39,990 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-19 20:33:39,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-19 20:33:39,996 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 20:33:40,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:33:40 BoogieIcfgContainer [2024-11-19 20:33:40,001 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 20:33:40,001 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 20:33:40,001 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 20:33:40,001 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 20:33:40,003 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:32:25" (3/4) ... [2024-11-19 20:33:40,005 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 20:33:40,011 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-19 20:33:40,011 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-19 20:33:40,011 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-19 20:33:40,011 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 20:33:40,011 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 20:33:40,100 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 20:33:40,100 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 20:33:40,100 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 20:33:40,101 INFO L158 Benchmark]: Toolchain (without parser) took 78324.69ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 46.3MB in the beginning and 72.3MB in the end (delta: -26.0MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2024-11-19 20:33:40,101 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory is still 35.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 20:33:40,101 INFO L158 Benchmark]: CACSL2BoogieTranslator took 626.32ms. Allocated memory is still 81.8MB. Free memory was 46.1MB in the beginning and 31.8MB in the end (delta: 14.3MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-11-19 20:33:40,101 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.91ms. Allocated memory is still 81.8MB. Free memory was 31.8MB in the beginning and 28.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-19 20:33:40,102 INFO L158 Benchmark]: Boogie Preprocessor took 53.50ms. Allocated memory is still 81.8MB. Free memory was 28.9MB in the beginning and 56.5MB in the end (delta: -27.6MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2024-11-19 20:33:40,102 INFO L158 Benchmark]: RCFGBuilder took 3253.50ms. Allocated memory is still 81.8MB. Free memory was 56.0MB in the beginning and 45.8MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-19 20:33:40,102 INFO L158 Benchmark]: TraceAbstraction took 74239.67ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 45.4MB in the beginning and 62.5MB in the end (delta: -17.1MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2024-11-19 20:33:40,102 INFO L158 Benchmark]: Witness Printer took 99.26ms. Allocated memory is still 100.7MB. Free memory was 62.5MB in the beginning and 72.3MB in the end (delta: -9.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-19 20:33:40,104 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory is still 35.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 626.32ms. Allocated memory is still 81.8MB. Free memory was 46.1MB in the beginning and 31.8MB in the end (delta: 14.3MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.91ms. Allocated memory is still 81.8MB. Free memory was 31.8MB in the beginning and 28.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.50ms. Allocated memory is still 81.8MB. Free memory was 28.9MB in the beginning and 56.5MB in the end (delta: -27.6MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3253.50ms. Allocated memory is still 81.8MB. Free memory was 56.0MB in the beginning and 45.8MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 74239.67ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 45.4MB in the beginning and 62.5MB in the end (delta: -17.1MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * Witness Printer took 99.26ms. Allocated memory is still 100.7MB. Free memory was 62.5MB in the beginning and 72.3MB in the end (delta: -9.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 851]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 74.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 8.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 8.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 11 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 13 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 58.1s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 2 QuantifiedInterpolants, 62 SizeOfPredicates, 1 NumberOfNonLiveVariables, 48 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-19 20:33:40,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE