./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/softmax_4_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/softmax_4_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI --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 40e574a11ca12b49ca5e943c34828a2bb84417bee7d51d8768967fd824c71eac --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:49:48,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:49:48,449 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-24 21:49:48,454 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:49:48,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:49:48,482 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:49:48,492 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:49:48,493 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:49:48,494 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:49:48,496 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:49:48,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:49:48,497 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:49:48,498 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:49:48,498 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:49:48,499 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:49:48,499 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:49:48,500 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:49:48,500 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:49:48,501 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:49:48,501 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:49:48,502 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:49:48,503 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:49:48,503 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:49:48,504 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:49:48,504 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:49:48,504 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:49:48,505 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:49:48,505 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:49:48,506 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:49:48,506 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:49:48,507 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:49:48,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:49:48,508 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:49:48,508 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:49:48,508 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 21:49:48,509 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:49:48,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:49:48,510 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:49:48,510 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:49:48,511 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 21:49:48,511 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:49:48,512 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:49:48,512 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40e574a11ca12b49ca5e943c34828a2bb84417bee7d51d8768967fd824c71eac [2023-11-24 21:49:48,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:49:48,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:49:48,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:49:48,810 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:49:48,811 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:49:48,812 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/neural-networks/softmax_4_safe.c-amalgamation.i [2023-11-24 21:49:51,997 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:49:52,388 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:49:52,390 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/sv-benchmarks/c/neural-networks/softmax_4_safe.c-amalgamation.i [2023-11-24 21:49:52,417 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/data/72097021b/c7ecfbb576f0487fbf4e53dfc7326da7/FLAGcca84a77d [2023-11-24 21:49:52,435 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/data/72097021b/c7ecfbb576f0487fbf4e53dfc7326da7 [2023-11-24 21:49:52,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:49:52,449 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:49:52,452 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:49:52,453 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:49:52,458 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:49:52,461 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:49:52" (1/1) ... [2023-11-24 21:49:52,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fc4ce0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:49:52, skipping insertion in model container [2023-11-24 21:49:52,463 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:49:52" (1/1) ... [2023-11-24 21:49:52,536 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:49:53,299 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: isnan at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:610) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:2220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$76(StandardFunctionHandler.java:455) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:245) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1486) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:269) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2499) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:305) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:284) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2499) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:305) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2499) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:305) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1671) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:231) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:386) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1512) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:157) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3421) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2441) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:611) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:133) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:147) 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) [2023-11-24 21:49:53,305 INFO L158 Benchmark]: Toolchain (without parser) took 856.40ms. Allocated memory is still 188.7MB. Free memory was 148.6MB in the beginning and 133.5MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 21:49:53,306 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 67.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:49:53,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 851.00ms. Allocated memory is still 188.7MB. Free memory was 148.6MB in the beginning and 133.5MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 21:49:53,309 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 67.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 851.00ms. Allocated memory is still 188.7MB. Free memory was 148.6MB in the beginning and 133.5MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. 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: isnan de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isnan: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:610) 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: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/softmax_4_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI --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 40e574a11ca12b49ca5e943c34828a2bb84417bee7d51d8768967fd824c71eac --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:49:55,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:49:55,898 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-24 21:49:55,904 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:49:55,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:49:55,933 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:49:55,934 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:49:55,935 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:49:55,936 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:49:55,936 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:49:55,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:49:55,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:49:55,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:49:55,939 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:49:55,939 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:49:55,940 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:49:55,940 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:49:55,941 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:49:55,941 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:49:55,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:49:55,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:49:55,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:49:55,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:49:55,944 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:49:55,944 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 21:49:55,945 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 21:49:55,945 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:49:55,946 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:49:55,946 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:49:55,946 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:49:55,947 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:49:55,947 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:49:55,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:49:55,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:49:55,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:49:55,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:49:55,950 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 21:49:55,950 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-24 21:49:55,950 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 21:49:55,951 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:49:55,951 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:49:55,952 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 21:49:55,952 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:49:55,953 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:49:55,974 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-24 21:49:55,974 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40e574a11ca12b49ca5e943c34828a2bb84417bee7d51d8768967fd824c71eac [2023-11-24 21:49:56,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:49:56,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:49:56,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:49:56,423 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:49:56,424 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:49:56,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/neural-networks/softmax_4_safe.c-amalgamation.i [2023-11-24 21:49:59,665 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:50:00,059 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:50:00,061 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/sv-benchmarks/c/neural-networks/softmax_4_safe.c-amalgamation.i [2023-11-24 21:50:00,093 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/data/fbbe86c1c/8d513dc14c8f4beaa7dd18364c291a69/FLAGd019329b8 [2023-11-24 21:50:00,109 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/data/fbbe86c1c/8d513dc14c8f4beaa7dd18364c291a69 [2023-11-24 21:50:00,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:50:00,114 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:50:00,115 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:50:00,116 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:50:00,121 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:50:00,122 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:50:00" (1/1) ... [2023-11-24 21:50:00,125 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c281061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:00, skipping insertion in model container [2023-11-24 21:50:00,125 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:50:00" (1/1) ... [2023-11-24 21:50:00,199 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:50:01,350 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/sv-benchmarks/c/neural-networks/softmax_4_safe.c-amalgamation.i[63646,63659] [2023-11-24 21:50:01,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:50:01,382 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:50:01,475 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/sv-benchmarks/c/neural-networks/softmax_4_safe.c-amalgamation.i[63646,63659] [2023-11-24 21:50:01,479 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:50:01,711 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:50:01,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:01 WrapperNode [2023-11-24 21:50:01,712 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:50:01,713 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:50:01,714 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:50:01,714 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:50:01,721 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:01" (1/1) ... [2023-11-24 21:50:01,772 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:01" (1/1) ... [2023-11-24 21:50:01,810 INFO L138 Inliner]: procedures = 562, calls = 36, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 123 [2023-11-24 21:50:01,811 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:50:01,811 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:50:01,812 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:50:01,812 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:50:01,825 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:01" (1/1) ... [2023-11-24 21:50:01,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:01" (1/1) ... [2023-11-24 21:50:01,837 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:01" (1/1) ... [2023-11-24 21:50:01,864 INFO L175 MemorySlicer]: Split 25 memory accesses to 4 slices as follows [2, 7, 4, 12]. 48 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7, 0, 0]. The 6 writes are split as follows [0, 0, 2, 4]. [2023-11-24 21:50:01,864 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:01" (1/1) ... [2023-11-24 21:50:01,865 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:01" (1/1) ... [2023-11-24 21:50:01,875 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:01" (1/1) ... [2023-11-24 21:50:01,879 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:01" (1/1) ... [2023-11-24 21:50:01,882 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:01" (1/1) ... [2023-11-24 21:50:01,884 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:01" (1/1) ... [2023-11-24 21:50:01,889 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:50:01,890 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:50:01,891 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:50:01,891 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:50:01,892 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:01" (1/1) ... [2023-11-24 21:50:01,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:50:01,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:50:01,941 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:50:01,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:50:01,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2023-11-24 21:50:01,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2023-11-24 21:50:01,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2023-11-24 21:50:01,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2023-11-24 21:50:01,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:50:01,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-24 21:50:01,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-24 21:50:01,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-24 21:50:01,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-24 21:50:01,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:50:01,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:50:01,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:50:01,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2023-11-24 21:50:01,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2023-11-24 21:50:01,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2023-11-24 21:50:01,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2023-11-24 21:50:01,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 21:50:02,129 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:50:02,131 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:50:04,276 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:50:04,343 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:50:04,343 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-24 21:50:04,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:50:04 BoogieIcfgContainer [2023-11-24 21:50:04,344 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:50:04,346 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:50:04,346 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:50:04,349 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:50:04,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:50:00" (1/3) ... [2023-11-24 21:50:04,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@597eaeff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:50:04, skipping insertion in model container [2023-11-24 21:50:04,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:50:01" (2/3) ... [2023-11-24 21:50:04,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@597eaeff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:50:04, skipping insertion in model container [2023-11-24 21:50:04,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:50:04" (3/3) ... [2023-11-24 21:50:04,352 INFO L112 eAbstractionObserver]: Analyzing ICFG softmax_4_safe.c-amalgamation.i [2023-11-24 21:50:04,371 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:50:04,372 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 21:50:04,416 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:50:04,424 INFO L357 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, mHoare=true, 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;@49d6fb78, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:50:04,424 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 21:50:04,428 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 20 states have (on average 1.65) internal successors, (33), 21 states have internal predecessors, (33), 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) [2023-11-24 21:50:04,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-24 21:50:04,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:50:04,436 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:50:04,436 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:50:04,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:50:04,442 INFO L85 PathProgramCache]: Analyzing trace with hash 271052457, now seen corresponding path program 1 times [2023-11-24 21:50:04,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:50:04,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494723440] [2023-11-24 21:50:04,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:50:04,457 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 [2023-11-24 21:50:04,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:50:04,460 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:50:04,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:50:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:50:04,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 21:50:04,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:50:04,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:50:04,674 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:50:04,674 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:50:04,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [494723440] [2023-11-24 21:50:04,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [494723440] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:50:04,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:50:04,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:50:04,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561870415] [2023-11-24 21:50:04,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:50:04,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 21:50:04,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:50:04,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 21:50:04,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 21:50:04,727 INFO L87 Difference]: Start difference. First operand has 22 states, 20 states have (on average 1.65) internal successors, (33), 21 states have internal predecessors, (33), 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 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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) [2023-11-24 21:50:05,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:50:05,094 INFO L93 Difference]: Finished difference Result 42 states and 63 transitions. [2023-11-24 21:50:05,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 21:50:05,097 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 17 [2023-11-24 21:50:05,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:50:05,106 INFO L225 Difference]: With dead ends: 42 [2023-11-24 21:50:05,106 INFO L226 Difference]: Without dead ends: 20 [2023-11-24 21:50:05,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 21:50:05,113 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-24 21:50:05,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-24 21:50:05,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-24 21:50:05,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-24 21:50:05,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 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) [2023-11-24 21:50:05,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2023-11-24 21:50:05,147 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 17 [2023-11-24 21:50:05,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:50:05,148 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2023-11-24 21:50:05,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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) [2023-11-24 21:50:05,148 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-11-24 21:50:05,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-24 21:50:05,149 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:50:05,149 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:50:05,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:50:05,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:50:05,353 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:50:05,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:50:05,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1895994719, now seen corresponding path program 1 times [2023-11-24 21:50:05,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:50:05,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270801656] [2023-11-24 21:50:05,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:50:05,356 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 [2023-11-24 21:50:05,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:50:05,357 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:50:05,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:50:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:50:05,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:50:05,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:50:05,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:50:05,576 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:50:05,577 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:50:05,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270801656] [2023-11-24 21:50:05,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [270801656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:50:05,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:50:05,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 21:50:05,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910141146] [2023-11-24 21:50:05,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:50:05,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 21:50:05,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:50:05,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 21:50:05,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:50:05,583 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-24 21:50:06,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:50:06,573 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2023-11-24 21:50:06,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 21:50:06,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2023-11-24 21:50:06,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:50:06,575 INFO L225 Difference]: With dead ends: 31 [2023-11-24 21:50:06,575 INFO L226 Difference]: Without dead ends: 23 [2023-11-24 21:50:06,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 21:50:06,577 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-24 21:50:06,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 27 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-24 21:50:06,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-24 21:50:06,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2023-11-24 21:50:06,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 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) [2023-11-24 21:50:06,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2023-11-24 21:50:06,583 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 17 [2023-11-24 21:50:06,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:50:06,584 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2023-11-24 21:50:06,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-24 21:50:06,585 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2023-11-24 21:50:06,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 21:50:06,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:50:06,586 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:50:06,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:50:06,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:50:06,797 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:50:06,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:50:06,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1676818693, now seen corresponding path program 1 times [2023-11-24 21:50:06,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:50:06,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189155821] [2023-11-24 21:50:06,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:50:06,799 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 [2023-11-24 21:50:06,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:50:06,800 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:50:06,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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 (4)] Waiting until timeout for monitored process [2023-11-24 21:50:06,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:50:06,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 21:50:06,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:50:07,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:50:07,061 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:50:07,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:50:07,149 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:50:07,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189155821] [2023-11-24 21:50:07,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [189155821] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:50:07,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 21:50:07,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2023-11-24 21:50:07,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817501162] [2023-11-24 21:50:07,151 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 21:50:07,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 21:50:07,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:50:07,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 21:50:07,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:50:07,152 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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) [2023-11-24 21:50:08,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:50:08,542 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2023-11-24 21:50:08,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 21:50:08,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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 20 [2023-11-24 21:50:08,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:50:08,550 INFO L225 Difference]: With dead ends: 35 [2023-11-24 21:50:08,550 INFO L226 Difference]: Without dead ends: 27 [2023-11-24 21:50:08,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-24 21:50:08,552 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 7 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-24 21:50:08,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 57 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-24 21:50:08,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-24 21:50:08,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-11-24 21:50:08,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 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) [2023-11-24 21:50:08,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2023-11-24 21:50:08,560 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 20 [2023-11-24 21:50:08,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:50:08,560 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2023-11-24 21:50:08,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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) [2023-11-24 21:50:08,561 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2023-11-24 21:50:08,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-24 21:50:08,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:50:08,562 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:50:08,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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 (4)] Ended with exit code 0 [2023-11-24 21:50:08,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:50:08,767 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:50:08,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:50:08,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1813933179, now seen corresponding path program 2 times [2023-11-24 21:50:08,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:50:08,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1305144670] [2023-11-24 21:50:08,768 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 21:50:08,768 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 [2023-11-24 21:50:08,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:50:08,769 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:50:08,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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 (5)] Waiting until timeout for monitored process [2023-11-24 21:50:08,914 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-24 21:50:08,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 21:50:08,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:50:08,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:50:09,037 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-24 21:50:09,037 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:50:09,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:50:09,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1305144670] [2023-11-24 21:50:09,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1305144670] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:50:09,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:50:09,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:50:09,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384207118] [2023-11-24 21:50:09,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:50:09,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 21:50:09,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:50:09,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 21:50:09,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:50:09,040 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2023-11-24 21:50:09,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:50:09,530 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2023-11-24 21:50:09,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 21:50:09,530 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 26 [2023-11-24 21:50:09,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:50:09,531 INFO L225 Difference]: With dead ends: 35 [2023-11-24 21:50:09,532 INFO L226 Difference]: Without dead ends: 29 [2023-11-24 21:50:09,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-24 21:50:09,533 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 7 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-24 21:50:09,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 35 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-24 21:50:09,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-24 21:50:09,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-24 21:50:09,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 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) [2023-11-24 21:50:09,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2023-11-24 21:50:09,540 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 26 [2023-11-24 21:50:09,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:50:09,541 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2023-11-24 21:50:09,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2023-11-24 21:50:09,541 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2023-11-24 21:50:09,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-24 21:50:09,542 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:50:09,542 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:50:09,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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 (5)] Forceful destruction successful, exit code 0 [2023-11-24 21:50:09,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:50:09,743 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:50:09,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:50:09,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1525709447, now seen corresponding path program 1 times [2023-11-24 21:50:09,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:50:09,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7841699] [2023-11-24 21:50:09,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:50:09,744 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 [2023-11-24 21:50:09,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:50:09,745 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:50:09,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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 (6)] Waiting until timeout for monitored process [2023-11-24 21:50:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:50:10,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 21:50:10,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:50:10,263 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-24 21:50:10,263 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 21:50:10,403 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-24 21:50:10,403 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:50:10,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7841699] [2023-11-24 21:50:10,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [7841699] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 21:50:10,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-24 21:50:10,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-24 21:50:10,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949931372] [2023-11-24 21:50:10,404 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-24 21:50:10,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-24 21:50:10,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:50:10,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-24 21:50:10,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-24 21:50:10,406 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 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) [2023-11-24 21:50:12,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 21:50:14,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 21:50:14,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:50:14,160 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2023-11-24 21:50:14,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-24 21:50:14,161 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 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 28 [2023-11-24 21:50:14,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:50:14,162 INFO L225 Difference]: With dead ends: 42 [2023-11-24 21:50:14,163 INFO L226 Difference]: Without dead ends: 35 [2023-11-24 21:50:14,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-24 21:50:14,165 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 36 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-24 21:50:14,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 62 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-24 21:50:14,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-24 21:50:14,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-24 21:50:14,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 34 states have internal predecessors, (40), 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) [2023-11-24 21:50:14,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2023-11-24 21:50:14,176 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 28 [2023-11-24 21:50:14,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:50:14,176 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2023-11-24 21:50:14,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 8 states have internal predecessors, (30), 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) [2023-11-24 21:50:14,177 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2023-11-24 21:50:14,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-24 21:50:14,178 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:50:14,179 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:50:14,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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 (6)] Ended with exit code 0 [2023-11-24 21:50:14,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:50:14,389 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 21:50:14,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:50:14,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1619969659, now seen corresponding path program 2 times [2023-11-24 21:50:14,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:50:14,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517199181] [2023-11-24 21:50:14,390 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 21:50:14,390 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 [2023-11-24 21:50:14,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:50:14,392 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:50:14,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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 (7)] Waiting until timeout for monitored process [2023-11-24 21:50:16,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-24 21:50:16,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-24 21:50:16,785 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 21:50:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 21:50:18,825 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-24 21:50:18,825 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 21:50:18,826 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-24 21:50:18,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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 (7)] Ended with exit code 0 [2023-11-24 21:50:19,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:50:19,032 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2023-11-24 21:50:19,035 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 21:50:19,081 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-24 21:50:19,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 09:50:19 BoogieIcfgContainer [2023-11-24 21:50:19,097 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 21:50:19,098 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 21:50:19,098 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 21:50:19,098 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 21:50:19,099 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:50:04" (3/4) ... [2023-11-24 21:50:19,101 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 21:50:19,102 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 21:50:19,103 INFO L158 Benchmark]: Toolchain (without parser) took 18989.02ms. Allocated memory was 77.6MB in the beginning and 119.5MB in the end (delta: 41.9MB). Free memory was 47.3MB in the beginning and 61.8MB in the end (delta: -14.5MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2023-11-24 21:50:19,103 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 77.6MB. Free memory was 54.6MB in the beginning and 54.5MB in the end (delta: 80.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:50:19,104 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1597.09ms. Allocated memory was 77.6MB in the beginning and 119.5MB in the end (delta: 41.9MB). Free memory was 47.0MB in the beginning and 75.4MB in the end (delta: -28.5MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2023-11-24 21:50:19,104 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.45ms. Allocated memory is still 119.5MB. Free memory was 75.4MB in the beginning and 72.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 21:50:19,105 INFO L158 Benchmark]: Boogie Preprocessor took 78.17ms. Allocated memory is still 119.5MB. Free memory was 72.2MB in the beginning and 69.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 21:50:19,105 INFO L158 Benchmark]: RCFGBuilder took 2453.63ms. Allocated memory is still 119.5MB. Free memory was 69.1MB in the beginning and 88.9MB in the end (delta: -19.8MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2023-11-24 21:50:19,105 INFO L158 Benchmark]: TraceAbstraction took 14751.52ms. Allocated memory is still 119.5MB. Free memory was 87.6MB in the beginning and 61.8MB in the end (delta: 25.8MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2023-11-24 21:50:19,106 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 119.5MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:50:19,108 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 77.6MB. Free memory was 54.6MB in the beginning and 54.5MB in the end (delta: 80.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1597.09ms. Allocated memory was 77.6MB in the beginning and 119.5MB in the end (delta: 41.9MB). Free memory was 47.0MB in the beginning and 75.4MB in the end (delta: -28.5MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.45ms. Allocated memory is still 119.5MB. Free memory was 75.4MB in the beginning and 72.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.17ms. Allocated memory is still 119.5MB. Free memory was 72.2MB in the beginning and 69.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2453.63ms. Allocated memory is still 119.5MB. Free memory was 69.1MB in the beginning and 88.9MB in the end (delta: -19.8MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * TraceAbstraction took 14751.52ms. Allocated memory is still 119.5MB. Free memory was 87.6MB in the beginning and 61.8MB in the end (delta: 25.8MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. * Witness Printer took 4.32ms. Allocated memory is still 119.5MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 873]: 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 expf at line 854, overapproximation of __builtin_isinf_sign at line 871. Possible FailurePath: [L863] float x[4], y[4]; [L864] x[0] = __VERIFIER_nondet_float() [L865] x[1] = __VERIFIER_nondet_float() [L866] x[2] = __VERIFIER_nondet_float() [L867] x[3] = __VERIFIER_nondet_float() [L868] EXPR x[0] [L868] COND FALSE !(!(!__builtin_isnan (x[0]) && !__builtin_isinf_sign (x[0]))) [L869] EXPR x[1] [L869] COND FALSE !(!(!__builtin_isnan (x[1]) && !__builtin_isinf_sign (x[1]))) [L870] EXPR x[2] [L870] COND FALSE !(!(!__builtin_isnan (x[2]) && !__builtin_isinf_sign (x[2]))) [L871] EXPR x[3] [L871] COND FALSE !(!(!__builtin_isnan (x[3]) && !__builtin_isinf_sign (x[3]))) [L872] CALL softmax(x, y, 4) [L847] int i; [L848] EXPR x[0] [L848] float max = x[0]; [L849] i = 1 VAL [\old(n)=4, i=1, max=0.0, n=4, x={5:0}, x={5:0}, y={3:0}, y={3:0}] [L849] COND TRUE i < n [L850] EXPR x[i] [L850] COND TRUE x[i] > max [L851] EXPR x[i] [L851] max = x[i] [L849] ++i VAL [\old(n)=4, i=2, max=2.0, n=4, x={5:0}, x={5:0}, y={3:0}, y={3:0}] [L849] COND TRUE i < n [L850] EXPR x[i] [L850] COND TRUE x[i] > max [L851] EXPR x[i] [L851] max = x[i] [L849] ++i VAL [\old(n)=4, i=3, max=36893488147419103000, n=4, x={5:0}, x={5:0}, y={3:0}, y={3:0}] [L849] COND TRUE i < n [L850] EXPR x[i] [L850] COND TRUE x[i] > max [L851] EXPR x[i] [L851] max = x[i] [L849] ++i VAL [\old(n)=4, i=4, max=158456325028528680000000000000, n=4, x={5:0}, x={5:0}, y={3:0}, y={3:0}] [L849] COND FALSE !(i < n) VAL [\old(n)=4, i=4, max=158456325028528680000000000000, n=4, x={5:0}, x={5:0}, y={3:0}, y={3:0}] [L852] float sum = 0.0f; [L853] i = 0 VAL [\old(n)=4, i=0, max=158456325028528680000000000000, n=4, sum=0.0, x={5:0}, x={5:0}, y={3:0}, y={3:0}] [L853] COND TRUE i < n [L854] EXPR x[i] [L854] float z = expf(x[i] - max); [L855] sum += z [L856] y[i] = z [L853] ++i VAL [\old(n)=4, i=1, max=158456325028528680000000000000, n=4, sum=6291440.5, x={5:0}, x={5:0}, y={3:0}, y={3:0}, z=6291440.5] [L853] COND TRUE i < n [L854] EXPR x[i] [L854] float z = expf(x[i] - max); [L855] sum += z [L856] y[i] = z [L853] ++i VAL [\old(n)=4, i=2, max=158456325028528680000000000000, n=4, sum=1.5, x={5:0}, x={5:0}, y={3:0}, y={3:0}, z=-6291439.0] [L853] COND TRUE i < n [L854] EXPR x[i] [L854] float z = expf(x[i] - max); [L855] sum += z [L856] y[i] = z [L853] ++i VAL [\old(n)=4, i=3, max=158456325028528680000000000000, n=4, sum=1.5, x={5:0}, x={5:0}, y={3:0}, y={3:0}, z=-0.000000000000000000000000000000000000000000543703804158029] [L853] COND TRUE i < n [L854] EXPR x[i] [L854] float z = expf(x[i] - max); [L855] sum += z [L856] y[i] = z [L853] ++i VAL [\old(n)=4, i=4, max=158456325028528680000000000000, n=4, sum=NaN, x={5:0}, x={5:0}, y={3:0}, y={3:0}, z=NaN] [L853] COND FALSE !(i < n) VAL [\old(n)=4, i=4, max=158456325028528680000000000000, n=4, sum=NaN, x={5:0}, x={5:0}, y={3:0}, y={3:0}, z=NaN] [L858] i = 0 VAL [\old(n)=4, i=0, max=158456325028528680000000000000, n=4, sum=NaN, x={5:0}, x={5:0}, y={3:0}, y={3:0}] [L858] COND TRUE i < n [L859] EXPR y[i] [L859] y[i] /= sum [L858] ++i VAL [\old(n)=4, i=1, max=158456325028528680000000000000, n=4, sum=NaN, x={5:0}, x={5:0}, y={3:0}, y={3:0}] [L858] COND TRUE i < n [L859] EXPR y[i] [L859] y[i] /= sum [L858] ++i VAL [\old(n)=4, i=2, max=158456325028528680000000000000, n=4, sum=NaN, x={5:0}, x={5:0}, y={3:0}, y={3:0}] [L858] COND TRUE i < n [L859] EXPR y[i] [L859] y[i] /= sum [L858] ++i VAL [\old(n)=4, i=3, max=158456325028528680000000000000, n=4, sum=NaN, x={5:0}, x={5:0}, y={3:0}, y={3:0}] [L858] COND TRUE i < n [L859] EXPR y[i] [L859] y[i] /= sum [L858] ++i VAL [\old(n)=4, i=4, max=158456325028528680000000000000, n=4, sum=NaN, x={5:0}, x={5:0}, y={3:0}, y={3:0}] [L858] COND FALSE !(i < n) VAL [\old(n)=4, i=4, max=158456325028528680000000000000, n=4, sum=NaN, x={5:0}, x={5:0}, y={3:0}, y={3:0}] [L872] RET softmax(x, y, 4) [L873] EXPR y[2] [L873] COND TRUE !(__builtin_islessequal(y[2], 1.0f)) [L873] reach_error() VAL [x={5:0}, y={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.6s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 6.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 202 SdHoareTripleChecker+Invalid, 6.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 116 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 155 IncrementalHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 86 mSDtfsCounter, 155 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=5, InterpolantAutomatonStates: 21, 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, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 142 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 283 SizeOfPredicates, 4 NumberOfNonLiveVariables, 385 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 38/42 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 [2023-11-24 21:50:19,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_31a5f1dc-2495-4992-a52d-033472370e6b/bin/uautomizer-verify-NlZe1sFDwI/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