./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/neural-networks/softsign_3_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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/softsign_3_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 2e8a85b1c2816aa544ac8e466cdb47354d430eed3abfdcaccd25e0cbcb4f8ee5 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 13:35:28,696 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 13:35:28,741 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 13:35:28,747 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 13:35:28,747 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 13:35:28,762 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 13:35:28,773 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 13:35:28,773 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 13:35:28,774 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 13:35:28,778 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 13:35:28,778 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 13:35:28,778 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 13:35:28,779 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 13:35:28,779 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 13:35:28,779 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 13:35:28,779 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 13:35:28,779 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 13:35:28,780 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 13:35:28,780 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 13:35:28,780 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 13:35:28,780 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 13:35:28,782 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 13:35:28,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 13:35:28,782 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 13:35:28,782 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 13:35:28,783 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 13:35:28,783 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 13:35:28,783 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 13:35:28,783 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 13:35:28,783 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 13:35:28,784 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 13:35:28,784 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 13:35:28,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 13:35:28,784 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 13:35:28,785 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 13:35:28,785 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 13:35:28,785 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 13:35:28,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 13:35:28,786 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 13:35:28,786 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 13:35:28,786 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 13:35:28,787 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 13:35:28,787 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e8a85b1c2816aa544ac8e466cdb47354d430eed3abfdcaccd25e0cbcb4f8ee5 [2024-11-08 13:35:28,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 13:35:28,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 13:35:29,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 13:35:29,003 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 13:35:29,003 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 13:35:29,004 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/softsign_3_safe.c-amalgamation.i [2024-11-08 13:35:30,241 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 13:35:30,467 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 13:35:30,468 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/softsign_3_safe.c-amalgamation.i [2024-11-08 13:35:30,488 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9e15af87/3c5731ad97a840afabd5bb30055355d3/FLAG9747a0b82 [2024-11-08 13:35:30,501 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9e15af87/3c5731ad97a840afabd5bb30055355d3 [2024-11-08 13:35:30,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 13:35:30,504 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 13:35:30,504 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 13:35:30,505 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 13:35:30,509 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 13:35:30,509 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 01:35:30" (1/1) ... [2024-11-08 13:35:30,510 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8db5c8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:35:30, skipping insertion in model container [2024-11-08 13:35:30,510 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 01:35:30" (1/1) ... [2024-11-08 13:35:30,572 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 13:35:31,005 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: fabs 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:789) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2554) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:307) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:790) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:568) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2160) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:197) 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) [2024-11-08 13:35:31,010 INFO L158 Benchmark]: Toolchain (without parser) took 505.88ms. Allocated memory is still 163.6MB. Free memory was 110.3MB in the beginning and 93.1MB in the end (delta: 17.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 13:35:31,011 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 163.6MB. Free memory is still 131.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 13:35:31,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.27ms. Allocated memory is still 163.6MB. Free memory was 109.9MB in the beginning and 93.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 13:35:31,012 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 163.6MB. Free memory is still 131.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.27ms. Allocated memory is still 163.6MB. Free memory was 109.9MB in the beginning and 93.1MB 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: fabs de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs: 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/softsign_3_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 2e8a85b1c2816aa544ac8e466cdb47354d430eed3abfdcaccd25e0cbcb4f8ee5 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 13:35:32,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 13:35:32,744 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 13:35:32,751 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 13:35:32,751 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 13:35:32,775 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 13:35:32,776 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 13:35:32,776 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 13:35:32,777 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 13:35:32,777 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 13:35:32,777 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 13:35:32,778 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 13:35:32,780 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 13:35:32,780 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 13:35:32,780 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 13:35:32,780 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 13:35:32,781 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 13:35:32,781 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 13:35:32,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 13:35:32,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 13:35:32,781 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 13:35:32,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 13:35:32,782 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 13:35:32,783 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 13:35:32,783 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 13:35:32,783 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 13:35:32,783 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 13:35:32,784 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 13:35:32,784 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 13:35:32,784 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 13:35:32,784 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 13:35:32,785 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 13:35:32,785 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 13:35:32,785 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 13:35:32,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 13:35:32,786 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 13:35:32,786 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 13:35:32,786 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 13:35:32,786 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-08 13:35:32,786 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 13:35:32,786 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 13:35:32,789 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 13:35:32,789 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 13:35:32,789 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 13:35:32,789 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e8a85b1c2816aa544ac8e466cdb47354d430eed3abfdcaccd25e0cbcb4f8ee5 [2024-11-08 13:35:33,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 13:35:33,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 13:35:33,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 13:35:33,068 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 13:35:33,068 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 13:35:33,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/neural-networks/softsign_3_safe.c-amalgamation.i [2024-11-08 13:35:34,364 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 13:35:34,601 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 13:35:34,602 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/neural-networks/softsign_3_safe.c-amalgamation.i [2024-11-08 13:35:34,629 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65708fc45/f26b1d35eac3448e9f80537c2beaaf65/FLAGfaaa1833c [2024-11-08 13:35:34,645 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65708fc45/f26b1d35eac3448e9f80537c2beaaf65 [2024-11-08 13:35:34,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 13:35:34,650 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 13:35:34,652 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 13:35:34,652 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 13:35:34,657 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 13:35:34,658 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 01:35:34" (1/1) ... [2024-11-08 13:35:34,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61f7c842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:35:34, skipping insertion in model container [2024-11-08 13:35:34,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 01:35:34" (1/1) ... [2024-11-08 13:35:34,712 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 13:35:35,125 WARN L1674 CHandler]: Possible shadowing of function y1 [2024-11-08 13:35:35,126 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/softsign_3_safe.c-amalgamation.i[63190,63203] [2024-11-08 13:35:35,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 13:35:35,141 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 13:35:35,184 WARN L1674 CHandler]: Possible shadowing of function y1 [2024-11-08 13:35:35,184 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/softsign_3_safe.c-amalgamation.i[63190,63203] [2024-11-08 13:35:35,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 13:35:35,310 INFO L204 MainTranslator]: Completed translation [2024-11-08 13:35:35,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:35:35 WrapperNode [2024-11-08 13:35:35,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 13:35:35,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 13:35:35,311 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 13:35:35,312 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 13:35:35,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:35:35" (1/1) ... [2024-11-08 13:35:35,335 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:35:35" (1/1) ... [2024-11-08 13:35:35,352 INFO L138 Inliner]: procedures = 559, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2024-11-08 13:35:35,352 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 13:35:35,353 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 13:35:35,353 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 13:35:35,353 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 13:35:35,363 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:35:35" (1/1) ... [2024-11-08 13:35:35,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:35:35" (1/1) ... [2024-11-08 13:35:35,366 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:35:35" (1/1) ... [2024-11-08 13:35:35,383 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]. [2024-11-08 13:35:35,383 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:35:35" (1/1) ... [2024-11-08 13:35:35,384 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:35:35" (1/1) ... [2024-11-08 13:35:35,388 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:35:35" (1/1) ... [2024-11-08 13:35:35,389 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:35:35" (1/1) ... [2024-11-08 13:35:35,404 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:35:35" (1/1) ... [2024-11-08 13:35:35,406 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:35:35" (1/1) ... [2024-11-08 13:35:35,413 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 13:35:35,414 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 13:35:35,414 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 13:35:35,414 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 13:35:35,415 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:35:35" (1/1) ... [2024-11-08 13:35:35,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 13:35:35,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 13:35:35,446 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) [2024-11-08 13:35:35,451 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 [2024-11-08 13:35:35,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 13:35:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 13:35:35,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 13:35:35,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 13:35:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 13:35:35,492 INFO L130 BoogieDeclarations]: Found specification of procedure softsign [2024-11-08 13:35:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure softsign [2024-11-08 13:35:35,588 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 13:35:35,592 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 13:35:36,643 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-08 13:35:36,643 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 13:35:36,651 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 13:35:36,651 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 13:35:36,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 01:35:36 BoogieIcfgContainer [2024-11-08 13:35:36,652 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 13:35:36,654 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 13:35:36,654 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 13:35:36,656 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 13:35:36,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 01:35:34" (1/3) ... [2024-11-08 13:35:36,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de01830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 01:35:36, skipping insertion in model container [2024-11-08 13:35:36,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 01:35:35" (2/3) ... [2024-11-08 13:35:36,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de01830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 01:35:36, skipping insertion in model container [2024-11-08 13:35:36,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 01:35:36" (3/3) ... [2024-11-08 13:35:36,658 INFO L112 eAbstractionObserver]: Analyzing ICFG softsign_3_safe.c-amalgamation.i [2024-11-08 13:35:36,673 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 13:35:36,674 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 13:35:36,724 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 13:35:36,730 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;@323ea747, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 13:35:36,731 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 13:35:36,734 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 13:35:36,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 13:35:36,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 13:35:36,741 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 13:35:36,742 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 13:35:36,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 13:35:36,748 INFO L85 PathProgramCache]: Analyzing trace with hash 2056638151, now seen corresponding path program 1 times [2024-11-08 13:35:36,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 13:35:36,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560653943] [2024-11-08 13:35:36,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 13:35:36,760 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 [2024-11-08 13:35:36,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 13:35:36,763 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) [2024-11-08 13:35:36,764 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 [2024-11-08 13:35:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 13:35:37,259 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 13:35:37,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 13:35:37,280 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 13:35:37,280 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 13:35:37,280 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 13:35:37,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560653943] [2024-11-08 13:35:37,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560653943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 13:35:37,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 13:35:37,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 13:35:37,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288206598] [2024-11-08 13:35:37,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 13:35:37,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 13:35:37,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 13:35:37,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 13:35:37,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 13:35:37,307 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 13:35:37,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 13:35:37,318 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2024-11-08 13:35:37,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 13:35:37,320 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-08 13:35:37,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 13:35:37,324 INFO L225 Difference]: With dead ends: 31 [2024-11-08 13:35:37,324 INFO L226 Difference]: Without dead ends: 13 [2024-11-08 13:35:37,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 13:35:37,330 INFO L432 NwaCegarLoop]: 17 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, 17 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 [2024-11-08 13:35:37,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 13:35:37,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-08 13:35:37,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-08 13:35:37,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 13:35:37,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-11-08 13:35:37,361 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 15 [2024-11-08 13:35:37,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 13:35:37,362 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2024-11-08 13:35:37,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 13:35:37,362 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-11-08 13:35:37,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 13:35:37,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 13:35:37,364 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 13:35:37,379 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 [2024-11-08 13:35:37,565 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 [2024-11-08 13:35:37,566 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 13:35:37,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 13:35:37,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1469832137, now seen corresponding path program 1 times [2024-11-08 13:35:37,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 13:35:37,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127452557] [2024-11-08 13:35:37,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 13:35:37,567 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 [2024-11-08 13:35:37,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 13:35:37,569 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) [2024-11-08 13:35:37,569 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 [2024-11-08 13:36:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 13:36:06,114 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 13:36:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 13:36:34,401 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-08 13:36:34,401 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 13:36:34,402 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 13:36:34,436 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 (3)] Ended with exit code 0 [2024-11-08 13:36:34,607 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 [2024-11-08 13:36:34,610 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 13:36:34,623 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 13:36:34,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 01:36:34 BoogieIcfgContainer [2024-11-08 13:36:34,625 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 13:36:34,626 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 13:36:34,626 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 13:36:34,626 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 13:36:34,626 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 01:35:36" (3/4) ... [2024-11-08 13:36:34,628 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 13:36:34,629 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 13:36:34,629 INFO L158 Benchmark]: Toolchain (without parser) took 59979.27ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 30.0MB in the beginning and 47.6MB in the end (delta: -17.7MB). Peak memory consumption was 908.5kB. Max. memory is 16.1GB. [2024-11-08 13:36:34,630 INFO L158 Benchmark]: CDTParser took 0.79ms. Allocated memory is still 50.3MB. Free memory was 31.5MB in the beginning and 31.4MB in the end (delta: 60.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 13:36:34,630 INFO L158 Benchmark]: CACSL2BoogieTranslator took 658.50ms. Allocated memory is still 65.0MB. Free memory was 29.7MB in the beginning and 26.1MB in the end (delta: 3.6MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2024-11-08 13:36:34,630 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.14ms. Allocated memory is still 65.0MB. Free memory was 26.1MB in the beginning and 23.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 13:36:34,631 INFO L158 Benchmark]: Boogie Preprocessor took 60.13ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 23.3MB in the beginning and 58.3MB in the end (delta: -35.1MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2024-11-08 13:36:34,631 INFO L158 Benchmark]: RCFGBuilder took 1238.41ms. Allocated memory is still 83.9MB. Free memory was 58.3MB in the beginning and 47.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 13:36:34,631 INFO L158 Benchmark]: TraceAbstraction took 57971.94ms. Allocated memory is still 83.9MB. Free memory was 46.8MB in the beginning and 48.2MB in the end (delta: -1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 13:36:34,631 INFO L158 Benchmark]: Witness Printer took 2.99ms. Allocated memory is still 83.9MB. Free memory is still 47.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 13:36:34,633 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79ms. Allocated memory is still 50.3MB. Free memory was 31.5MB in the beginning and 31.4MB in the end (delta: 60.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 658.50ms. Allocated memory is still 65.0MB. Free memory was 29.7MB in the beginning and 26.1MB in the end (delta: 3.6MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.14ms. Allocated memory is still 65.0MB. Free memory was 26.1MB in the beginning and 23.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.13ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 23.3MB in the beginning and 58.3MB in the end (delta: -35.1MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1238.41ms. Allocated memory is still 83.9MB. Free memory was 58.3MB in the beginning and 47.3MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 57971.94ms. Allocated memory is still 83.9MB. Free memory was 46.8MB in the beginning and 48.2MB in the end (delta: -1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.99ms. Allocated memory is still 83.9MB. Free memory is still 47.6MB. There was no memory consumed. 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 - UnprovableResult [Line: 857]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of __builtin_isinf_sign at line 853. Possible FailurePath: [L851] float x1 = __VERIFIER_nondet_float(); [L852] float x2 = x1 + 1e-1f; [L853] COND FALSE !(!(!__builtin_isnan (x1) && !__builtin_isinf_sign (x1))) [L854] CALL, EXPR softsign(x1) [L847] return x / (fabsf(x) + 1.0f); VAL [\result=NaN] [L854] RET, EXPR softsign(x1) [L854] float y1 = softsign(x1); [L855] CALL, EXPR softsign(x2) [L847] return x / (fabsf(x) + 1.0f); VAL [\result=NaN] [L855] RET, EXPR softsign(x2) VAL [y1=NaN] [L855] float y2 = softsign(x2); [L856] float derivative = (y2 - y1) / 1e-1f; VAL [derivative=NaN] [L857] COND TRUE !(__builtin_islessequal(derivative, 1.0f)) [L857] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 57.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 17 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 28.9s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 39 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 13:36:34,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample