./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/softsign_w4_r4_case_1_unsafe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/softsign_w4_r4_case_1_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC --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 171e6403d0a6e0feba8ddcb2417444714956e517ce217452b8605fc7a675a75e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:35:21,782 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:35:21,866 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 22:35:21,874 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:35:21,874 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:35:21,912 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:35:21,914 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:35:21,915 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:35:21,915 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:35:21,915 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:35:21,916 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:35:21,916 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:35:21,917 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:35:21,917 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:35:21,917 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:35:21,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:35:21,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:35:21,918 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:35:21,918 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:35:21,918 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:35:21,918 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:35:21,918 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:35:21,918 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:35:21,918 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:35:21,918 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:35:21,918 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:35:21,918 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:35:21,918 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:35:21,919 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:35:21,920 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:35:21,920 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:35:21,920 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:35:21,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:35:21,921 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:35:21,921 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:35:21,921 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:35:21,921 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:35:21,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:35:21,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:35:21,921 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:35:21,921 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:35:21,922 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:35:21,922 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:35:21,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:35:21,922 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:35:21,922 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:35:21,923 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:35:21,923 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:35:21,923 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC 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 -> 171e6403d0a6e0feba8ddcb2417444714956e517ce217452b8605fc7a675a75e [2024-11-23 22:35:22,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:35:22,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:35:22,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:35:22,253 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:35:22,254 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:35:22,255 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/neural-networks/softsign_w4_r4_case_1_unsafe.c-amalgamation.i [2024-11-23 22:35:25,394 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/data/b7536a83d/d413a64f92024b1188bfe9af7e308326/FLAG75fe2013b [2024-11-23 22:35:25,851 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:35:25,851 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/sv-benchmarks/c/neural-networks/softsign_w4_r4_case_1_unsafe.c-amalgamation.i [2024-11-23 22:35:25,882 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/data/b7536a83d/d413a64f92024b1188bfe9af7e308326/FLAG75fe2013b [2024-11-23 22:35:25,895 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/data/b7536a83d/d413a64f92024b1188bfe9af7e308326 [2024-11-23 22:35:25,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:35:25,899 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:35:25,900 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:35:25,900 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:35:25,905 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:35:25,906 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:35:25" (1/1) ... [2024-11-23 22:35:25,906 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e830077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:25, skipping insertion in model container [2024-11-23 22:35:25,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:35:25" (1/1) ... [2024-11-23 22:35:25,963 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:35:27,172 WARN L250 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_2c40f81d-09df-4fbb-9796-773620b77240/sv-benchmarks/c/neural-networks/softsign_w4_r4_case_1_unsafe.c-amalgamation.i[71413,71426] [2024-11-23 22:35:27,533 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:629) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3128) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:255) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1602) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:271) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:783) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2556) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:307) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:783) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:783) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1507) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:224) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1158) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1141) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleLoopBody(CHandler.java:3602) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1554) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:227) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1158) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1141) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:393) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1629) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3507) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2500) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:641) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-23 22:35:27,546 INFO L158 Benchmark]: Toolchain (without parser) took 1641.47ms. Allocated memory is still 117.4MB. Free memory was 87.1MB in the beginning and 57.6MB in the end (delta: 29.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 22:35:27,546 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:35:27,547 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1639.07ms. Allocated memory is still 117.4MB. Free memory was 86.5MB in the beginning and 57.6MB in the end (delta: 28.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 22:35:27,548 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1639.07ms. Allocated memory is still 117.4MB. Free memory was 86.5MB in the beginning and 57.6MB in the end (delta: 28.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fabs: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:629) 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/softsign_w4_r4_case_1_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC --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 171e6403d0a6e0feba8ddcb2417444714956e517ce217452b8605fc7a675a75e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:35:30,194 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:35:30,285 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 22:35:30,300 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:35:30,300 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:35:30,350 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:35:30,351 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:35:30,351 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:35:30,355 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:35:30,355 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:35:30,355 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:35:30,355 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:35:30,356 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:35:30,356 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:35:30,356 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:35:30,356 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:35:30,356 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:35:30,356 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:35:30,356 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:35:30,357 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:35:30,357 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:35:30,357 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:35:30,357 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:35:30,357 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 22:35:30,357 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 22:35:30,357 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 22:35:30,357 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:35:30,357 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:35:30,357 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:35:30,357 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:35:30,358 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:35:30,358 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:35:30,358 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:35:30,358 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:35:30,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:35:30,358 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:35:30,358 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:35:30,358 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:35:30,358 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:35:30,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:35:30,359 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:35:30,359 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:35:30,359 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:35:30,359 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:35:30,359 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 22:35:30,359 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 22:35:30,359 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:35:30,359 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:35:30,359 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:35:30,359 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:35:30,362 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC 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 -> 171e6403d0a6e0feba8ddcb2417444714956e517ce217452b8605fc7a675a75e [2024-11-23 22:35:30,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:35:30,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:35:30,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:35:30,769 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:35:30,770 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:35:30,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/neural-networks/softsign_w4_r4_case_1_unsafe.c-amalgamation.i [2024-11-23 22:35:33,865 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/data/1e0c6d451/26c5e5ac10f24844a44a024cbd11cc97/FLAGccf9bc708 [2024-11-23 22:35:34,378 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:35:34,379 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/sv-benchmarks/c/neural-networks/softsign_w4_r4_case_1_unsafe.c-amalgamation.i [2024-11-23 22:35:34,431 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/data/1e0c6d451/26c5e5ac10f24844a44a024cbd11cc97/FLAGccf9bc708 [2024-11-23 22:35:34,455 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/data/1e0c6d451/26c5e5ac10f24844a44a024cbd11cc97 [2024-11-23 22:35:34,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:35:34,460 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:35:34,462 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:35:34,464 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:35:34,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:35:34,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:35:34" (1/1) ... [2024-11-23 22:35:34,470 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10e37274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:34, skipping insertion in model container [2024-11-23 22:35:34,470 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:35:34" (1/1) ... [2024-11-23 22:35:34,555 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:35:35,707 WARN L250 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_2c40f81d-09df-4fbb-9796-773620b77240/sv-benchmarks/c/neural-networks/softsign_w4_r4_case_1_unsafe.c-amalgamation.i[71413,71426] [2024-11-23 22:35:36,065 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-23 22:35:36,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:35:36,141 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:35:36,213 WARN L250 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_2c40f81d-09df-4fbb-9796-773620b77240/sv-benchmarks/c/neural-networks/softsign_w4_r4_case_1_unsafe.c-amalgamation.i[71413,71426] [2024-11-23 22:35:36,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:35:36,659 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:35:36,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:36 WrapperNode [2024-11-23 22:35:36,660 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:35:36,662 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:35:36,664 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:35:36,664 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:35:36,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:36" (1/1) ... [2024-11-23 22:35:36,744 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:36" (1/1) ... [2024-11-23 22:35:36,804 INFO L138 Inliner]: procedures = 780, calls = 729, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 418 [2024-11-23 22:35:36,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:35:36,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:35:36,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:35:36,805 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:35:36,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:36" (1/1) ... [2024-11-23 22:35:36,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:36" (1/1) ... [2024-11-23 22:35:36,821 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:36" (1/1) ... [2024-11-23 22:35:36,854 INFO L175 MemorySlicer]: Split 193 memory accesses to 12 slices as follows [9, 2, 7, 20, 2, 11, 31, 35, 11, 43, 10, 12]. 22 percent of accesses are in the largest equivalence class. The 99 initializations are split as follows [8, 2, 7, 16, 2, 8, 20, 0, 8, 12, 8, 8]. The 56 writes are split as follows [0, 0, 0, 3, 0, 0, 5, 34, 0, 14, 0, 0]. [2024-11-23 22:35:36,854 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:36" (1/1) ... [2024-11-23 22:35:36,854 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:36" (1/1) ... [2024-11-23 22:35:36,904 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:36" (1/1) ... [2024-11-23 22:35:36,909 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:36" (1/1) ... [2024-11-23 22:35:36,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:36" (1/1) ... [2024-11-23 22:35:36,938 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:36" (1/1) ... [2024-11-23 22:35:36,946 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:36" (1/1) ... [2024-11-23 22:35:36,958 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:35:36,959 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:35:36,959 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:35:36,959 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:35:36,960 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:36" (1/1) ... [2024-11-23 22:35:36,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:35:36,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:36,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:35:36,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:35:37,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-23 22:35:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-23 22:35:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-23 22:35:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-23 22:35:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-23 22:35:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-23 22:35:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-23 22:35:37,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-23 22:35:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-23 22:35:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-23 22:35:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-23 22:35:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-11-23 22:35:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNN [2024-11-23 22:35:37,025 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNN [2024-11-23 22:35:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-23 22:35:37,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-23 22:35:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#2 [2024-11-23 22:35:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#3 [2024-11-23 22:35:37,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#4 [2024-11-23 22:35:37,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#5 [2024-11-23 22:35:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#6 [2024-11-23 22:35:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#7 [2024-11-23 22:35:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#8 [2024-11-23 22:35:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#9 [2024-11-23 22:35:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#10 [2024-11-23 22:35:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#11 [2024-11-23 22:35:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:35:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:35:37,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:35:37,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-23 22:35:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-23 22:35:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-23 22:35:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-23 22:35:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-23 22:35:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-23 22:35:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-23 22:35:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-23 22:35:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-23 22:35:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-11-23 22:35:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-11-23 22:35:37,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-11-23 22:35:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-23 22:35:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-23 22:35:37,029 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-23 22:35:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-23 22:35:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-23 22:35:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-23 22:35:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-23 22:35:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-23 22:35:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-23 22:35:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-11-23 22:35:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-11-23 22:35:37,030 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-11-23 22:35:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 22:35:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-23 22:35:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-23 22:35:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-23 22:35:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-23 22:35:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-23 22:35:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-23 22:35:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-23 22:35:37,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-23 22:35:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-23 22:35:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-23 22:35:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-23 22:35:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-23 22:35:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_affine_matmul [2024-11-23 22:35:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_affine_matmul [2024-11-23 22:35:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-23 22:35:37,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-23 22:35:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 22:35:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 22:35:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-23 22:35:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-23 22:35:37,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-23 22:35:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-23 22:35:37,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-23 22:35:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-23 22:35:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-23 22:35:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-23 22:35:37,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-23 22:35:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-23 22:35:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-23 22:35:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-23 22:35:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-23 22:35:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-23 22:35:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-23 22:35:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-23 22:35:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-23 22:35:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-23 22:35:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-11-23 22:35:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2024-11-23 22:35:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2024-11-23 22:35:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2024-11-23 22:35:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11 [2024-11-23 22:35:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-23 22:35:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-23 22:35:37,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-23 22:35:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-23 22:35:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-23 22:35:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-23 22:35:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-11-23 22:35:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-11-23 22:35:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2024-11-23 22:35:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2024-11-23 22:35:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2024-11-23 22:35:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#11 [2024-11-23 22:35:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNNcell [2024-11-23 22:35:37,038 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNNcell [2024-11-23 22:35:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-23 22:35:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-23 22:35:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-23 22:35:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-23 22:35:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-23 22:35:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-23 22:35:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-23 22:35:37,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-23 22:35:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-23 22:35:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-23 22:35:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-23 22:35:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-23 22:35:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-23 22:35:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-23 22:35:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-23 22:35:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-23 22:35:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-23 22:35:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-23 22:35:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-23 22:35:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-23 22:35:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-23 22:35:37,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-23 22:35:37,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-23 22:35:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-11-23 22:35:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-23 22:35:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-23 22:35:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-23 22:35:37,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-23 22:35:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-23 22:35:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-23 22:35:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-23 22:35:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-23 22:35:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-23 22:35:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-23 22:35:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-23 22:35:37,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-23 22:35:37,495 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:35:37,498 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:35:53,223 INFO L? ?]: Removed 154 outVars from TransFormulas that were not future-live. [2024-11-23 22:35:53,223 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:35:53,235 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:35:53,235 INFO L312 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-23 22:35:53,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:53 BoogieIcfgContainer [2024-11-23 22:35:53,236 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:35:53,238 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:35:53,238 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:35:53,243 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:35:53,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:35:34" (1/3) ... [2024-11-23 22:35:53,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335ae995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:53, skipping insertion in model container [2024-11-23 22:35:53,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:36" (2/3) ... [2024-11-23 22:35:53,244 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@335ae995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:53, skipping insertion in model container [2024-11-23 22:35:53,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:53" (3/3) ... [2024-11-23 22:35:53,245 INFO L128 eAbstractionObserver]: Analyzing ICFG softsign_w4_r4_case_1_unsafe.c-amalgamation.i [2024-11-23 22:35:53,260 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:35:53,262 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG softsign_w4_r4_case_1_unsafe.c-amalgamation.i that has 17 procedures, 177 locations, 1 initial locations, 32 loop locations, and 1 error locations. [2024-11-23 22:35:53,316 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:35:53,328 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7a6f212f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:35:53,328 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:35:53,332 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 119 states have (on average 1.5126050420168067) internal successors, (180), 120 states have internal predecessors, (180), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-23 22:35:53,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-23 22:35:53,339 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:53,339 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:53,340 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:53,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:53,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1752628958, now seen corresponding path program 1 times [2024-11-23 22:35:53,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:35:53,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166908508] [2024-11-23 22:35:53,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:53,357 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:35:53,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:35:53,361 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:35:53,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-23 22:35:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:54,629 INFO L256 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 22:35:54,634 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:35:54,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:35:54,650 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:35:54,650 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:35:54,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166908508] [2024-11-23 22:35:54,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166908508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:54,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:54,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 22:35:54,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26048895] [2024-11-23 22:35:54,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:54,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 22:35:54,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:35:54,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 22:35:54,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:35:54,682 INFO L87 Difference]: Start difference. First operand has 133 states, 119 states have (on average 1.5126050420168067) internal successors, (180), 120 states have internal predecessors, (180), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 22:35:54,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:54,731 INFO L93 Difference]: Finished difference Result 262 states and 388 transitions. [2024-11-23 22:35:54,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 22:35:54,732 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-23 22:35:54,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:54,740 INFO L225 Difference]: With dead ends: 262 [2024-11-23 22:35:54,740 INFO L226 Difference]: Without dead ends: 129 [2024-11-23 22:35:54,745 INFO L434 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 [2024-11-23 22:35:54,751 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:54,752 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:54,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-23 22:35:54,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2024-11-23 22:35:54,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 116 states have (on average 1.3275862068965518) internal successors, (154), 116 states have internal predecessors, (154), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-23 22:35:54,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 168 transitions. [2024-11-23 22:35:54,796 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 168 transitions. Word has length 17 [2024-11-23 22:35:54,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:54,796 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 168 transitions. [2024-11-23 22:35:54,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 22:35:54,797 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 168 transitions. [2024-11-23 22:35:54,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-23 22:35:54,797 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:54,797 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:54,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-23 22:35:54,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:35:54,998 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:54,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:54,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1996825343, now seen corresponding path program 1 times [2024-11-23 22:35:55,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:35:55,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1176983842] [2024-11-23 22:35:55,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:55,001 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:35:55,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:35:55,003 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:35:55,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-23 22:35:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:56,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 22:35:56,239 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:35:56,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:35:56,867 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:35:56,867 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:35:56,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1176983842] [2024-11-23 22:35:56,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1176983842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:56,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:56,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 22:35:56,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744845883] [2024-11-23 22:35:56,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:56,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:35:56,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:35:56,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:35:56,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:35:56,870 INFO L87 Difference]: Start difference. First operand 129 states and 168 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 22:35:57,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:57,200 INFO L93 Difference]: Finished difference Result 140 states and 180 transitions. [2024-11-23 22:35:57,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 22:35:57,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-23 22:35:57,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:57,209 INFO L225 Difference]: With dead ends: 140 [2024-11-23 22:35:57,209 INFO L226 Difference]: Without dead ends: 119 [2024-11-23 22:35:57,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:35:57,211 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 16 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:57,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 642 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 22:35:57,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-23 22:35:57,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-11-23 22:35:57,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 107 states have (on average 1.3177570093457944) internal successors, (141), 107 states have internal predecessors, (141), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-23 22:35:57,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 153 transitions. [2024-11-23 22:35:57,233 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 153 transitions. Word has length 17 [2024-11-23 22:35:57,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:57,233 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 153 transitions. [2024-11-23 22:35:57,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 22:35:57,233 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 153 transitions. [2024-11-23 22:35:57,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-23 22:35:57,234 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:57,234 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:57,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-23 22:35:57,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:35:57,439 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:57,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:57,440 INFO L85 PathProgramCache]: Analyzing trace with hash 702928858, now seen corresponding path program 1 times [2024-11-23 22:35:57,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:35:57,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861739270] [2024-11-23 22:35:57,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:57,445 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:35:57,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:35:57,450 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:35:57,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 22:35:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:58,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-23 22:35:58,765 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:00,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:00,962 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:36:00,963 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:36:00,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861739270] [2024-11-23 22:36:00,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1861739270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:36:00,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:36:00,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 22:36:00,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008781699] [2024-11-23 22:36:00,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:36:00,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:36:00,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:36:00,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:36:00,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:36:00,964 INFO L87 Difference]: Start difference. First operand 119 states and 153 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 22:36:02,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:36:04,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:36:05,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:36:08,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:36:12,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:36:16,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:36:20,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:36:24,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:36:28,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:36:31,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:36:31,885 INFO L93 Difference]: Finished difference Result 140 states and 179 transitions. [2024-11-23 22:36:31,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:36:31,888 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-23 22:36:31,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:36:31,889 INFO L225 Difference]: With dead ends: 140 [2024-11-23 22:36:31,889 INFO L226 Difference]: Without dead ends: 128 [2024-11-23 22:36:31,889 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-23 22:36:31,890 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 157 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:36:31,890 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 801 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 5 Unknown, 0 Unchecked, 30.9s Time] [2024-11-23 22:36:31,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-23 22:36:31,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 120. [2024-11-23 22:36:31,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 108 states have (on average 1.3148148148148149) internal successors, (142), 108 states have internal predecessors, (142), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-23 22:36:31,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 154 transitions. [2024-11-23 22:36:31,906 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 154 transitions. Word has length 17 [2024-11-23 22:36:31,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:36:31,906 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 154 transitions. [2024-11-23 22:36:31,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 22:36:31,906 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 154 transitions. [2024-11-23 22:36:31,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-23 22:36:31,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:36:31,909 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:36:31,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/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)] Forceful destruction successful, exit code 0 [2024-11-23 22:36:32,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:36:32,113 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:36:32,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:36:32,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1830561117, now seen corresponding path program 1 times [2024-11-23 22:36:32,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:36:32,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [900404128] [2024-11-23 22:36:32,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:32,114 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:36:32,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:36:32,117 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:36:32,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 22:36:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:36:33,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 22:36:33,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:36:46,835 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:36:46,835 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:36:58,674 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:36:58,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [900404128] [2024-11-23 22:36:58,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [900404128] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:36:58,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1775535987] [2024-11-23 22:36:58,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:36:58,675 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 22:36:58,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 22:36:58,677 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 22:36:58,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-23 22:37:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:00,068 INFO L256 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 22:37:00,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:37:00,841 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-23 22:37:00,841 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:37:00,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1775535987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:00,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:37:00,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2024-11-23 22:37:00,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936937264] [2024-11-23 22:37:00,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:00,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:37:00,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:37:00,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:37:00,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-23 22:37:00,844 INFO L87 Difference]: Start difference. First operand 120 states and 154 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-23 22:37:01,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:01,044 INFO L93 Difference]: Finished difference Result 239 states and 310 transitions. [2024-11-23 22:37:01,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:37:01,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 63 [2024-11-23 22:37:01,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:01,047 INFO L225 Difference]: With dead ends: 239 [2024-11-23 22:37:01,047 INFO L226 Difference]: Without dead ends: 128 [2024-11-23 22:37:01,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 125 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-23 22:37:01,048 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 3 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:01,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 306 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 22:37:01,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-23 22:37:01,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2024-11-23 22:37:01,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 115 states have (on average 1.3043478260869565) internal successors, (150), 115 states have internal predecessors, (150), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-23 22:37:01,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 164 transitions. [2024-11-23 22:37:01,062 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 164 transitions. Word has length 63 [2024-11-23 22:37:01,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:01,063 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 164 transitions. [2024-11-23 22:37:01,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-23 22:37:01,063 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 164 transitions. [2024-11-23 22:37:01,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-23 22:37:01,065 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:01,065 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:01,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-23 22:37:01,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/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)] Ended with exit code 0 [2024-11-23 22:37:01,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:37:01,466 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:01,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:01,467 INFO L85 PathProgramCache]: Analyzing trace with hash -284565293, now seen corresponding path program 1 times [2024-11-23 22:37:01,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:37:01,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730936616] [2024-11-23 22:37:01,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:01,468 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:37:01,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:37:01,472 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:37:01,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 22:37:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:02,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 22:37:02,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:37:16,217 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:16,217 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:37:28,310 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:37:28,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730936616] [2024-11-23 22:37:28,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1730936616] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:37:28,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [441821570] [2024-11-23 22:37:28,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:28,310 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 22:37:28,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 22:37:28,312 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 22:37:28,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-23 22:37:29,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:29,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 22:37:29,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:37:32,597 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 22:37:32,597 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:37:32,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [441821570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:37:32,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:37:32,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 17 [2024-11-23 22:37:32,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975203105] [2024-11-23 22:37:32,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:37:32,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:37:32,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:37:32,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:37:32,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-23 22:37:32,600 INFO L87 Difference]: Start difference. First operand 128 states and 164 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-23 22:37:33,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:37:33,470 INFO L93 Difference]: Finished difference Result 258 states and 335 transitions. [2024-11-23 22:37:33,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:37:33,471 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) Word has length 65 [2024-11-23 22:37:33,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:37:33,472 INFO L225 Difference]: With dead ends: 258 [2024-11-23 22:37:33,473 INFO L226 Difference]: Without dead ends: 136 [2024-11-23 22:37:33,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 128 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-23 22:37:33,475 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 28 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:37:33,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 711 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-23 22:37:33,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-23 22:37:33,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 129. [2024-11-23 22:37:33,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 116 states have (on average 1.3017241379310345) internal successors, (151), 116 states have internal predecessors, (151), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-23 22:37:33,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 165 transitions. [2024-11-23 22:37:33,499 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 165 transitions. Word has length 65 [2024-11-23 22:37:33,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:37:33,500 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 165 transitions. [2024-11-23 22:37:33,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-23 22:37:33,500 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 165 transitions. [2024-11-23 22:37:33,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-23 22:37:33,502 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:37:33,502 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:37:33,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-23 22:37:33,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 22:37:33,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:37:33,903 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:37:33,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:37:33,904 INFO L85 PathProgramCache]: Analyzing trace with hash 51807315, now seen corresponding path program 1 times [2024-11-23 22:37:33,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:37:33,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429916279] [2024-11-23 22:37:33,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:37:33,905 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:37:33,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:37:33,907 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:37:33,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/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 (9)] Waiting until timeout for monitored process [2024-11-23 22:37:35,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:37:35,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 913 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 22:37:35,149 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:37:49,480 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 22:37:49,480 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:38:01,596 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:38:01,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429916279] [2024-11-23 22:38:01,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [429916279] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:38:01,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2117370041] [2024-11-23 22:38:01,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:01,598 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 22:38:01,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 22:38:01,600 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 22:38:01,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-23 22:38:04,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:38:04,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 913 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-23 22:38:04,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:38:11,257 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-23 22:38:11,257 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:38:18,427 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-23 22:38:18,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2117370041] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 22:38:18,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:38:18,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13, 7] total 20 [2024-11-23 22:38:18,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070577759] [2024-11-23 22:38:18,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:38:18,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:38:18,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:38:18,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:38:18,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2024-11-23 22:38:18,430 INFO L87 Difference]: Start difference. First operand 129 states and 165 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-23 22:38:22,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:38:26,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:38:30,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:38:32,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:38:32,405 INFO L93 Difference]: Finished difference Result 161 states and 205 transitions. [2024-11-23 22:38:32,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:38:32,408 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 73 [2024-11-23 22:38:32,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:38:32,410 INFO L225 Difference]: With dead ends: 161 [2024-11-23 22:38:32,410 INFO L226 Difference]: Without dead ends: 132 [2024-11-23 22:38:32,411 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 212 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=84, Invalid=468, Unknown=0, NotChecked=0, Total=552 [2024-11-23 22:38:32,412 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 35 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:38:32,412 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 587 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 3 Unknown, 0 Unchecked, 14.0s Time] [2024-11-23 22:38:32,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-23 22:38:32,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 130. [2024-11-23 22:38:32,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 117 states have (on average 1.2991452991452992) internal successors, (152), 117 states have internal predecessors, (152), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-23 22:38:32,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 166 transitions. [2024-11-23 22:38:32,427 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 166 transitions. Word has length 73 [2024-11-23 22:38:32,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:38:32,427 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 166 transitions. [2024-11-23 22:38:32,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-23 22:38:32,428 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 166 transitions. [2024-11-23 22:38:32,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-23 22:38:32,429 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:38:32,430 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:38:32,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-23 22:38:32,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/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 (9)] Ended with exit code 0 [2024-11-23 22:38:32,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:38:32,830 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:38:32,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:38:32,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1680764883, now seen corresponding path program 1 times [2024-11-23 22:38:32,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:38:32,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430895] [2024-11-23 22:38:32,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:38:32,832 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:38:32,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:38:32,834 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:38:32,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/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 (11)] Waiting until timeout for monitored process [2024-11-23 22:38:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:38:34,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 913 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 22:38:34,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:38:49,644 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-23 22:38:49,644 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:39:02,227 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:39:02,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430895] [2024-11-23 22:39:02,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1430895] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:39:02,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2101046155] [2024-11-23 22:39:02,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:39:02,227 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 22:39:02,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 22:39:02,229 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 22:39:02,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-23 22:39:03,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:39:03,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 913 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 22:39:03,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:39:06,667 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-23 22:39:06,668 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:39:06,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2101046155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:39:06,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:39:06,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2024-11-23 22:39:06,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839281639] [2024-11-23 22:39:06,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:39:06,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 22:39:06,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:39:06,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 22:39:06,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2024-11-23 22:39:06,671 INFO L87 Difference]: Start difference. First operand 130 states and 166 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-23 22:39:07,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:39:07,774 INFO L93 Difference]: Finished difference Result 137 states and 172 transitions. [2024-11-23 22:39:07,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:39:07,775 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 73 [2024-11-23 22:39:07,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:39:07,776 INFO L225 Difference]: With dead ends: 137 [2024-11-23 22:39:07,777 INFO L226 Difference]: Without dead ends: 119 [2024-11-23 22:39:07,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 145 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2024-11-23 22:39:07,778 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 14 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-23 22:39:07,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 583 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-23 22:39:07,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-23 22:39:07,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2024-11-23 22:39:07,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 107 states have (on average 1.2897196261682242) internal successors, (138), 107 states have internal predecessors, (138), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-23 22:39:07,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 150 transitions. [2024-11-23 22:39:07,792 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 150 transitions. Word has length 73 [2024-11-23 22:39:07,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:39:07,793 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 150 transitions. [2024-11-23 22:39:07,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-23 22:39:07,793 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 150 transitions. [2024-11-23 22:39:07,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-23 22:39:07,794 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:39:07,795 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:39:07,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/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 (11)] Ended with exit code 0 [2024-11-23 22:39:08,006 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-11-23 22:39:08,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-23 22:39:08,195 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:39:08,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:39:08,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1515263255, now seen corresponding path program 1 times [2024-11-23 22:39:08,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:39:08,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1257129995] [2024-11-23 22:39:08,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:39:08,197 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:39:08,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:39:08,198 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:39:08,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/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 (13)] Waiting until timeout for monitored process [2024-11-23 22:39:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:39:09,587 INFO L256 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-23 22:39:09,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:39:25,177 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 22:39:25,177 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:39:38,144 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:39:38,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1257129995] [2024-11-23 22:39:38,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1257129995] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:39:38,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1069496392] [2024-11-23 22:39:38,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:39:38,145 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 22:39:38,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 22:39:38,147 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 22:39:38,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-23 22:39:40,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:39:40,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-23 22:39:40,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:39:50,491 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-23 22:39:50,491 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:40:01,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1069496392] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:40:01,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:40:01,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 17 [2024-11-23 22:40:01,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521116532] [2024-11-23 22:40:01,376 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 22:40:01,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 22:40:01,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:40:01,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 22:40:01,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=601, Unknown=0, NotChecked=0, Total=702 [2024-11-23 22:40:01,378 INFO L87 Difference]: Start difference. First operand 119 states and 150 transitions. Second operand has 17 states, 14 states have (on average 6.928571428571429) internal successors, (97), 17 states have internal predecessors, (97), 8 states have call successors, (11), 2 states have call predecessors, (11), 8 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-23 22:40:05,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:40:09,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:40:13,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:40:17,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:40:21,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:40:25,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:40:29,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:40:33,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:40:38,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:40:42,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:40:46,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:40:50,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:40:54,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:41:01,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:41:09,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:41:11,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:41:14,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:41:15,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:41:18,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:41:22,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:41:24,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:41:29,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:41:33,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:41:36,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:41:40,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:41:53,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:41:56,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:42:10,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:42:14,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:42:18,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:42:18,509 INFO L93 Difference]: Finished difference Result 379 states and 495 transitions. [2024-11-23 22:42:18,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-23 22:42:18,513 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 6.928571428571429) internal successors, (97), 17 states have internal predecessors, (97), 8 states have call successors, (11), 2 states have call predecessors, (11), 8 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 75 [2024-11-23 22:42:18,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:42:18,515 INFO L225 Difference]: With dead ends: 379 [2024-11-23 22:42:18,515 INFO L226 Difference]: Without dead ends: 122 [2024-11-23 22:42:18,516 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 167 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 27.2s TimeCoverageRelationStatistics Valid=212, Invalid=1270, Unknown=0, NotChecked=0, Total=1482 [2024-11-23 22:42:18,517 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 374 mSDsluCounter, 1479 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 18 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 125.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 127.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:42:18,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 1626 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 514 Invalid, 21 Unknown, 0 Unchecked, 127.0s Time] [2024-11-23 22:42:18,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-23 22:42:18,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2024-11-23 22:42:18,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 109 states have (on average 1.2844036697247707) internal successors, (140), 109 states have internal predecessors, (140), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-23 22:42:18,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 152 transitions. [2024-11-23 22:42:18,528 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 152 transitions. Word has length 75 [2024-11-23 22:42:18,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:42:18,528 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 152 transitions. [2024-11-23 22:42:18,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 6.928571428571429) internal successors, (97), 17 states have internal predecessors, (97), 8 states have call successors, (11), 2 states have call predecessors, (11), 8 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-23 22:42:18,528 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 152 transitions. [2024-11-23 22:42:18,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-23 22:42:18,529 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:42:18,529 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:42:18,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/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 (13)] Forceful destruction successful, exit code 0 [2024-11-23 22:42:18,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-23 22:42:18,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-23 22:42:18,930 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:42:18,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:42:18,930 INFO L85 PathProgramCache]: Analyzing trace with hash -567544497, now seen corresponding path program 1 times [2024-11-23 22:42:18,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:42:18,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482011997] [2024-11-23 22:42:18,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:42:18,931 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:42:18,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:42:18,934 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:42:18,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/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 (15)] Waiting until timeout for monitored process [2024-11-23 22:42:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:20,373 INFO L256 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-23 22:42:20,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:42:37,807 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-23 22:42:37,807 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:42:51,538 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:42:51,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482011997] [2024-11-23 22:42:51,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1482011997] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:42:51,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1542944361] [2024-11-23 22:42:51,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:42:51,539 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 22:42:51,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 22:42:51,541 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 22:42:51,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-23 22:42:53,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:42:53,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 22:42:53,272 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:42:56,965 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 22:42:56,965 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:43:04,369 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 22:43:04,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1542944361] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 22:43:04,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-23 22:43:04,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14, 6] total 20 [2024-11-23 22:43:04,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578783247] [2024-11-23 22:43:04,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:43:04,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 22:43:04,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:43:04,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 22:43:04,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2024-11-23 22:43:04,372 INFO L87 Difference]: Start difference. First operand 121 states and 152 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-23 22:43:08,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:43:09,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:43:11,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 22:43:12,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:43:12,505 INFO L93 Difference]: Finished difference Result 255 states and 325 transitions. [2024-11-23 22:43:12,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 22:43:12,505 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 79 [2024-11-23 22:43:12,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:43:12,507 INFO L225 Difference]: With dead ends: 255 [2024-11-23 22:43:12,507 INFO L226 Difference]: Without dead ends: 122 [2024-11-23 22:43:12,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 234 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2024-11-23 22:43:12,508 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 26 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:43:12,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 565 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2024-11-23 22:43:12,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-23 22:43:12,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-11-23 22:43:12,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2818181818181817) internal successors, (141), 110 states have internal predecessors, (141), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-23 22:43:12,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 153 transitions. [2024-11-23 22:43:12,526 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 153 transitions. Word has length 79 [2024-11-23 22:43:12,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:43:12,526 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 153 transitions. [2024-11-23 22:43:12,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-23 22:43:12,526 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 153 transitions. [2024-11-23 22:43:12,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-23 22:43:12,527 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:43:12,527 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:43:12,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-23 22:43:12,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/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 (15)] Ended with exit code 0 [2024-11-23 22:43:12,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:43:12,928 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:43:12,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:43:12,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1693855331, now seen corresponding path program 1 times [2024-11-23 22:43:12,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:43:12,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [790565517] [2024-11-23 22:43:12,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:43:12,929 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:43:12,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:43:12,931 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:43:12,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/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 (17)] Waiting until timeout for monitored process [2024-11-23 22:43:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:43:14,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 987 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-23 22:43:14,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:43:33,247 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 22:43:33,247 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:43:46,745 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:43:46,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [790565517] [2024-11-23 22:43:46,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [790565517] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:43:46,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1840804565] [2024-11-23 22:43:46,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:43:46,745 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 22:43:46,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 22:43:46,747 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 22:43:46,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-11-23 22:43:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:43:48,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 987 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 22:43:48,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:43:54,897 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 22:43:54,897 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:44:06,783 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 5 proven. 18 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-23 22:44:06,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1840804565] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:44:06,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:44:06,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 23 [2024-11-23 22:44:06,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795745999] [2024-11-23 22:44:06,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:44:06,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-23 22:44:06,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:44:06,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-23 22:44:06,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=621, Unknown=0, NotChecked=0, Total=702 [2024-11-23 22:44:06,786 INFO L87 Difference]: Start difference. First operand 122 states and 153 transitions. Second operand has 23 states, 20 states have (on average 7.6) internal successors, (152), 22 states have internal predecessors, (152), 13 states have call successors, (17), 4 states have call predecessors, (17), 9 states have return successors, (17), 10 states have call predecessors, (17), 13 states have call successors, (17) [2024-11-23 22:44:10,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:44:14,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:44:19,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:44:23,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:44:27,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:44:31,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:44:35,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:44:39,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:44:43,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:44:47,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:44:55,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:45:00,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:45:13,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:45:15,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:45:18,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:45:22,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:45:25,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:45:29,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:45:34,435 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:45:38,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:45:40,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:45:47,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:45:53,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:46:21,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:46:23,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:46:25,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:46:27,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:46:30,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:46:34,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:46:36,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:46:53,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:47:04,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:47:05,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:47:05,309 INFO L93 Difference]: Finished difference Result 415 states and 539 transitions. [2024-11-23 22:47:05,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-23 22:47:05,312 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 7.6) internal successors, (152), 22 states have internal predecessors, (152), 13 states have call successors, (17), 4 states have call predecessors, (17), 9 states have return successors, (17), 10 states have call predecessors, (17), 13 states have call successors, (17) Word has length 87 [2024-11-23 22:47:05,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:47:05,313 INFO L225 Difference]: With dead ends: 415 [2024-11-23 22:47:05,313 INFO L226 Difference]: Without dead ends: 142 [2024-11-23 22:47:05,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 255 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 57.4s TimeCoverageRelationStatistics Valid=602, Invalid=3058, Unknown=0, NotChecked=0, Total=3660 [2024-11-23 22:47:05,315 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 348 mSDsluCounter, 2258 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 32 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 138.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 139.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:47:05,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 2399 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 766 Invalid, 18 Unknown, 0 Unchecked, 139.9s Time] [2024-11-23 22:47:05,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2024-11-23 22:47:05,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 135. [2024-11-23 22:47:05,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 122 states have (on average 1.278688524590164) internal successors, (156), 123 states have internal predecessors, (156), 6 states have call successors, (6), 5 states have call predecessors, (6), 6 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-23 22:47:05,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 169 transitions. [2024-11-23 22:47:05,329 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 169 transitions. Word has length 87 [2024-11-23 22:47:05,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:47:05,329 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 169 transitions. [2024-11-23 22:47:05,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 7.6) internal successors, (152), 22 states have internal predecessors, (152), 13 states have call successors, (17), 4 states have call predecessors, (17), 9 states have return successors, (17), 10 states have call predecessors, (17), 13 states have call successors, (17) [2024-11-23 22:47:05,330 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 169 transitions. [2024-11-23 22:47:05,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-23 22:47:05,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:47:05,331 INFO L218 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:47:05,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/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 (17)] Ended with exit code 0 [2024-11-23 22:47:05,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2024-11-23 22:47:05,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-23 22:47:05,732 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:47:05,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:47:05,732 INFO L85 PathProgramCache]: Analyzing trace with hash -865299489, now seen corresponding path program 1 times [2024-11-23 22:47:05,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:47:05,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167712081] [2024-11-23 22:47:05,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:47:05,733 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:47:05,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:47:05,735 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:47:05,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/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 (19)] Waiting until timeout for monitored process [2024-11-23 22:47:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:47:07,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-23 22:47:07,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:47:27,730 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 22:47:27,730 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:47:41,716 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:47:41,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167712081] [2024-11-23 22:47:41,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167712081] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:47:41,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [230307428] [2024-11-23 22:47:41,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:47:41,717 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 22:47:41,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 22:47:41,721 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 22:47:41,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c40f81d-09df-4fbb-9796-773620b77240/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-23 22:47:43,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:47:43,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 22:47:43,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:47:49,967 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-23 22:47:49,967 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:48:01,476 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-23 22:48:01,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [230307428] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 22:48:01,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 22:48:01,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8, 8] total 24 [2024-11-23 22:48:01,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922551567] [2024-11-23 22:48:01,476 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 22:48:01,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-23 22:48:01,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:48:01,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-23 22:48:01,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=675, Unknown=0, NotChecked=0, Total=756 [2024-11-23 22:48:01,478 INFO L87 Difference]: Start difference. First operand 135 states and 169 transitions. Second operand has 24 states, 21 states have (on average 7.0) internal successors, (147), 23 states have internal predecessors, (147), 10 states have call successors, (15), 3 states have call predecessors, (15), 9 states have return successors, (15), 9 states have call predecessors, (15), 10 states have call successors, (15) [2024-11-23 22:48:05,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:48:09,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:48:13,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:48:17,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:48:22,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:48:26,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:48:30,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:48:34,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:48:38,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:48:42,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:48:46,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:48:53,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:48:58,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:49:02,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:49:13,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:49:17,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:49:18,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:49:21,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:49:23,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:49:25,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:49:29,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:49:33,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:49:34,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:49:37,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:49:39,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:49:44,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:50:09,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:50:11,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:50:14,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:50:16,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:50:20,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:50:24,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:50:25,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:50:27,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:50:31,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:50:33,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-23 22:50:35,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]