./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd --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 f7d8666e561276f52fdb57f95324433fec798c5d47b9bb4ca4cdc06eae6ff06b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:19:12,615 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:19:12,695 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:19:12,700 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:19:12,700 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:19:12,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:19:12,723 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:19:12,723 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:19:12,723 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:19:12,724 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:19:12,724 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:19:12,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:19:12,724 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:19:12,724 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:19:12,725 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:19:12,725 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:19:12,725 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:19:12,725 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:19:12,725 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:19:12,725 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:19:12,726 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:19:12,726 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:19:12,726 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:19:12,726 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:19:12,726 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:19:12,726 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:19:12,727 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:19:12,727 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:19:12,727 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:19:12,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:19:12,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:19:12,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:19:12,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:19:12,727 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:19:12,727 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:19:12,728 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:19:12,728 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:19:12,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:19:12,728 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:19:12,728 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:19:12,728 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:19:12,728 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:19:12,729 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_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd 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 -> f7d8666e561276f52fdb57f95324433fec798c5d47b9bb4ca4cdc06eae6ff06b [2024-11-13 15:19:13,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:19:13,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:19:13,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:19:13,046 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:19:13,046 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:19:13,047 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i Unable to find full path for "g++" [2024-11-13 15:19:15,042 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:19:15,269 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:19:15,270 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i [2024-11-13 15:19:15,277 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/data/8695534e8/6ef40c20f4fa4807b40da53d81b28c85/FLAG3d6f9fc8f [2024-11-13 15:19:15,290 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/data/8695534e8/6ef40c20f4fa4807b40da53d81b28c85 [2024-11-13 15:19:15,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:19:15,294 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:19:15,296 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:19:15,296 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:19:15,301 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:19:15,302 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:19:15" (1/1) ... [2024-11-13 15:19:15,303 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dd391a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:19:15, skipping insertion in model container [2024-11-13 15:19:15,306 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:19:15" (1/1) ... [2024-11-13 15:19:15,322 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:19:15,470 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_428c0803-ef56-4478-9c9e-066aa0fb766b/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i[948,961] [2024-11-13 15:19:15,490 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java: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:1611) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:271) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:792) 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:1516) 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:1167) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1150) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1638) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3515) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2508) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:642) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-13 15:19:15,496 INFO L158 Benchmark]: Toolchain (without parser) took 201.89ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 107.7MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:19:15,497 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:19:15,497 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.24ms. Allocated memory is still 142.6MB. Free memory was 117.1MB in the beginning and 107.7MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:19:15,498 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.24ms. Allocated memory is still 142.6MB. Free memory was 117.1MB in the beginning and 107.7MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java: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_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd --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 f7d8666e561276f52fdb57f95324433fec798c5d47b9bb4ca4cdc06eae6ff06b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:19:18,018 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:19:18,128 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 15:19:18,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:19:18,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:19:18,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:19:18,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:19:18,160 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:19:18,160 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:19:18,160 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:19:18,160 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:19:18,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:19:18,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:19:18,161 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:19:18,161 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:19:18,161 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:19:18,161 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:19:18,162 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:19:18,162 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:19:18,162 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:19:18,162 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:19:18,162 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:19:18,162 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:19:18,162 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:19:18,163 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 15:19:18,163 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:19:18,163 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 15:19:18,163 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:19:18,163 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:19:18,163 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:19:18,164 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:19:18,164 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:19:18,164 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:19:18,164 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:19:18,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:19:18,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:19:18,165 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:19:18,165 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:19:18,165 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 15:19:18,165 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 15:19:18,165 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:19:18,165 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:19:18,165 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:19:18,166 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:19:18,166 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_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd 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 -> f7d8666e561276f52fdb57f95324433fec798c5d47b9bb4ca4cdc06eae6ff06b [2024-11-13 15:19:18,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:19:18,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:19:18,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:19:18,488 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:19:18,488 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:19:18,490 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i Unable to find full path for "g++" [2024-11-13 15:19:20,480 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:19:20,750 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:19:20,750 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i [2024-11-13 15:19:20,762 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/data/79f34b5a1/961098774df74ca1ac024708f78a802c/FLAG0229ef2a6 [2024-11-13 15:19:21,048 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/data/79f34b5a1/961098774df74ca1ac024708f78a802c [2024-11-13 15:19:21,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:19:21,051 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:19:21,052 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:19:21,052 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:19:21,056 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:19:21,056 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:19:21" (1/1) ... [2024-11-13 15:19:21,057 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3250a6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:19:21, skipping insertion in model container [2024-11-13 15:19:21,057 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:19:21" (1/1) ... [2024-11-13 15:19:21,073 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:19:21,241 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_428c0803-ef56-4478-9c9e-066aa0fb766b/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i[948,961] [2024-11-13 15:19:21,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:19:21,290 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:19:21,302 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_428c0803-ef56-4478-9c9e-066aa0fb766b/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i[948,961] [2024-11-13 15:19:21,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:19:21,353 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:19:21,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:19:21 WrapperNode [2024-11-13 15:19:21,354 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:19:21,355 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:19:21,355 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:19:21,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:19:21,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:19:21" (1/1) ... [2024-11-13 15:19:21,371 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:19:21" (1/1) ... [2024-11-13 15:19:21,389 INFO L138 Inliner]: procedures = 18, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 74 [2024-11-13 15:19:21,390 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:19:21,390 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:19:21,390 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:19:21,390 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:19:21,401 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:19:21" (1/1) ... [2024-11-13 15:19:21,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:19:21" (1/1) ... [2024-11-13 15:19:21,405 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:19:21" (1/1) ... [2024-11-13 15:19:21,417 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-13 15:19:21,418 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:19:21" (1/1) ... [2024-11-13 15:19:21,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:19:21" (1/1) ... [2024-11-13 15:19:21,425 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:19:21" (1/1) ... [2024-11-13 15:19:21,428 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:19:21" (1/1) ... [2024-11-13 15:19:21,430 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:19:21" (1/1) ... [2024-11-13 15:19:21,431 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:19:21" (1/1) ... [2024-11-13 15:19:21,434 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:19:21,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:19:21,435 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:19:21,435 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:19:21,436 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:19:21" (1/1) ... [2024-11-13 15:19:21,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:19:21,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:19:21,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:19:21,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:19:21,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:19:21,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 15:19:21,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 15:19:21,503 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 15:19:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 15:19:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:19:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:19:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 15:19:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 15:19:21,587 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:19:21,588 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:19:26,477 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-13 15:19:26,477 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:19:26,494 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:19:26,494 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:19:26,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:19:26 BoogieIcfgContainer [2024-11-13 15:19:26,495 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:19:26,501 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:19:26,502 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:19:26,507 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:19:26,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:19:21" (1/3) ... [2024-11-13 15:19:26,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26cc05aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:19:26, skipping insertion in model container [2024-11-13 15:19:26,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:19:21" (2/3) ... [2024-11-13 15:19:26,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26cc05aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:19:26, skipping insertion in model container [2024-11-13 15:19:26,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:19:26" (3/3) ... [2024-11-13 15:19:26,510 INFO L112 eAbstractionObserver]: Analyzing ICFG knuth_valuebound20.i [2024-11-13 15:19:26,530 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:19:26,532 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG knuth_valuebound20.i that has 3 procedures, 31 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:19:26,593 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:19:26,606 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;@6f7b6860, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:19:26,606 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:19:26,611 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 15:19:26,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-13 15:19:26,621 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:19:26,621 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:19:26,622 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:19:26,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:19:26,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1940833664, now seen corresponding path program 1 times [2024-11-13 15:19:26,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:19:26,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425252447] [2024-11-13 15:19:26,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:19:26,640 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 [2024-11-13 15:19:26,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:19:26,644 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/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) [2024-11-13 15:19:26,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 15:19:26,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:19:26,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 15:19:26,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:19:27,018 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 15:19:27,020 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:19:27,021 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:19:27,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425252447] [2024-11-13 15:19:27,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425252447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:19:27,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:19:27,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:19:27,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362367713] [2024-11-13 15:19:27,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:19:27,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:19:27,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:19:27,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:19:27,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:19:27,049 INFO L87 Difference]: Start difference. First operand has 31 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 20 states have internal predecessors, (28), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:19:27,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:19:27,075 INFO L93 Difference]: Finished difference Result 59 states and 92 transitions. [2024-11-13 15:19:27,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:19:27,080 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2024-11-13 15:19:27,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:19:27,088 INFO L225 Difference]: With dead ends: 59 [2024-11-13 15:19:27,088 INFO L226 Difference]: Without dead ends: 27 [2024-11-13 15:19:27,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:19:27,098 INFO L432 NwaCegarLoop]: 40 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, 40 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 [2024-11-13 15:19:27,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:19:27,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-13 15:19:27,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-13 15:19:27,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 15:19:27,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2024-11-13 15:19:27,152 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 29 [2024-11-13 15:19:27,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:19:27,152 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2024-11-13 15:19:27,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:19:27,154 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2024-11-13 15:19:27,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-13 15:19:27,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:19:27,157 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:19:27,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-13 15:19:27,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 15:19:27,358 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:19:27,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:19:27,358 INFO L85 PathProgramCache]: Analyzing trace with hash 474679620, now seen corresponding path program 1 times [2024-11-13 15:19:27,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:19:27,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [540455530] [2024-11-13 15:19:27,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:19:27,359 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 [2024-11-13 15:19:27,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:19:27,362 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/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) [2024-11-13 15:19:27,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 15:19:29,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:19:29,427 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-13 15:19:29,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:19:37,939 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 15:19:37,940 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:19:52,067 WARN L873 $PredicateComparison]: unable to prove that (= (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|) (let ((.cse2 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse0 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvadd (bvmul (_ bv8 32) .cse0) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse1)) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse3)) (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse0))) (bvneg (bvmul (bvadd (bvmul (_ bv8 32) .cse1) (bvmul (_ bv8 32) .cse3)) |c_ULTIMATE.start_main_~a~0#1|)))))) is different from true [2024-11-13 15:20:00,496 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:20:09,184 WARN L873 $PredicateComparison]: unable to prove that (or (= (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|) (let ((.cse2 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse0 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|)) (.cse1 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse3 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvadd (bvmul (_ bv8 32) .cse0) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse1)) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse2))) (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse3)) (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse0))) (bvneg (bvmul (bvadd (bvmul (_ bv8 32) .cse1) (bvmul (_ bv8 32) .cse3)) |c_ULTIMATE.start_main_~a~0#1|)))))) (not (bvugt |c_ULTIMATE.start_main_~a~0#1| (_ bv2 32)))) is different from true [2024-11-13 15:20:21,319 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:20:29,570 WARN L873 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ BitVec 32))) (or (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv2 32)) (= (let ((.cse2 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv4294967294 32)))) (let ((.cse1 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse2)) (.cse3 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (.cse0 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)))) (bvadd (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (bvadd (bvmul (_ bv8 32) .cse0) (bvmul (_ bv8 32) .cse1)))) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| .cse1)) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse2))) (bvneg (bvmul (bvmul (_ bv4 32) .cse3) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv8 32) .cse3) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| .cse0))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5|)))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2024-11-13 15:20:41,753 WARN L286 SmtUtils]: Spent 8.12s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:20:58,259 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:21:06,532 WARN L873 $PredicateComparison]: unable to prove that (or (= (_ bv0 32) c_assume_abort_if_not_~cond) (forall ((|v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| (_ BitVec 32)) (|v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ BitVec 32))) (or (bvugt |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv2 32)) (= (let ((.cse2 (bvadd |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (_ bv4294967294 32)))) (let ((.cse1 (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse2)) (.cse3 (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (.cse0 (bvneg (bvudiv |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)))) (bvadd (bvneg (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (bvadd (bvmul (_ bv8 32) .cse0) (bvmul (_ bv8 32) .cse1)))) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| .cse1)) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| (bvurem |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5| .cse2))) (bvneg (bvmul (bvmul (_ bv4 32) .cse3) |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3|)) (bvmul (_ bv8 32) .cse3) (bvmul (_ bv4 32) (bvmul |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| |v_ULTIMATE.start_main_~a~0#1_BEFORE_CALL_3| .cse0))))) (bvmul (_ bv8 32) |v_ULTIMATE.start_main_~n~0#1_BEFORE_CALL_5|)))) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from true [2024-11-13 15:21:14,729 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:21:27,387 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:21:35,469 WARN L286 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:21:44,385 WARN L873 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~a~0#1| (_ BitVec 32))) (or (not (bvugt |ULTIMATE.start_main_~a~0#1| (_ bv2 32))) (not (bvule |ULTIMATE.start_main_~a~0#1| (_ bv20 32))) (= (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|) (let ((.cse3 (bvadd |ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse0 (bvurem |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|)) (.cse2 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~a~0#1|))) (.cse1 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse3))) (bvadd (bvneg (bvmul |ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse0))) (bvmul (_ bv4 32) (bvmul |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1| .cse1)) (bvmul (_ bv4 32) (bvmul .cse2 |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~a~0#1|)) (bvmul (_ bv8 32) .cse0) (bvmul (_ bv4 32) (bvmul |ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse3))) (bvneg (bvmul (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul (_ bv8 32) .cse1)) |ULTIMATE.start_main_~a~0#1|)))))))) is different from true [2024-11-13 15:21:44,388 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:21:44,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [540455530] [2024-11-13 15:21:44,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [540455530] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:21:44,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127040993] [2024-11-13 15:21:44,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:21:44,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:21:44,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:21:44,400 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:21:44,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:21:49,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:21:49,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 15:21:49,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:21:57,667 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 15:21:57,668 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:21:57,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127040993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:21:57,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:21:57,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 10 [2024-11-13 15:21:57,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968250846] [2024-11-13 15:21:57,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:21:57,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:21:57,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:21:57,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:21:57,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=131, Unknown=5, NotChecked=130, Total=306 [2024-11-13 15:21:57,671 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 7 states have internal predecessors, (11), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:22:04,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:22:08,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:22:12,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:22:16,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:22:20,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:22:28,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:22:28,123 INFO L93 Difference]: Finished difference Result 44 states and 59 transitions. [2024-11-13 15:22:28,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 15:22:28,133 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 7 states have internal predecessors, (11), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 29 [2024-11-13 15:22:28,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:22:28,134 INFO L225 Difference]: With dead ends: 44 [2024-11-13 15:22:28,134 INFO L226 Difference]: Without dead ends: 42 [2024-11-13 15:22:28,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 30.8s TimeCoverageRelationStatistics Valid=57, Invalid=198, Unknown=5, NotChecked=160, Total=420 [2024-11-13 15:22:28,136 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 56 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 25 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:22:28,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 101 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 118 Invalid, 5 Unknown, 0 Unchecked, 27.9s Time] [2024-11-13 15:22:28,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-13 15:22:28,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 33. [2024-11-13 15:22:28,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 20 states have (on average 1.2) internal successors, (24), 21 states have internal predecessors, (24), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-13 15:22:28,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2024-11-13 15:22:28,151 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 29 [2024-11-13 15:22:28,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:22:28,151 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2024-11-13 15:22:28,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 7 states have internal predecessors, (11), 4 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:22:28,152 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2024-11-13 15:22:28,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 15:22:28,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:22:28,153 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:28,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 15:22:28,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 15:22:28,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 15:22:28,554 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:22:28,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:28,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1079711530, now seen corresponding path program 1 times [2024-11-13 15:22:28,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:22:28,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2117692049] [2024-11-13 15:22:28,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:28,556 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 [2024-11-13 15:22:28,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:22:28,558 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/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) [2024-11-13 15:22:28,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 15:22:28,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:28,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:22:28,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:22:29,636 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 15:22:29,637 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:22:29,637 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:22:29,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2117692049] [2024-11-13 15:22:29,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2117692049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:22:29,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:22:29,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:22:29,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135623785] [2024-11-13 15:22:29,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:22:29,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:22:29,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:22:29,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:22:29,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:22:29,642 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:22:31,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:22:31,111 INFO L93 Difference]: Finished difference Result 46 states and 60 transitions. [2024-11-13 15:22:31,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:22:31,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34 [2024-11-13 15:22:31,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:22:31,118 INFO L225 Difference]: With dead ends: 46 [2024-11-13 15:22:31,118 INFO L226 Difference]: Without dead ends: 44 [2024-11-13 15:22:31,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:22:31,120 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 6 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:22:31,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 130 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 15:22:31,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-13 15:22:31,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2024-11-13 15:22:31,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-13 15:22:31,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2024-11-13 15:22:31,133 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 34 [2024-11-13 15:22:31,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:22:31,133 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2024-11-13 15:22:31,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:22:31,134 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2024-11-13 15:22:31,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-13 15:22:31,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:22:31,136 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:22:31,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 15:22:31,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 15:22:31,337 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:22:31,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:22:31,338 INFO L85 PathProgramCache]: Analyzing trace with hash -841020348, now seen corresponding path program 1 times [2024-11-13 15:22:31,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:22:31,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038734334] [2024-11-13 15:22:31,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:22:31,339 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 [2024-11-13 15:22:31,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:22:31,341 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/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) [2024-11-13 15:22:31,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-13 15:22:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:22:34,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 15:22:34,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:22:51,911 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 15:22:51,911 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:23:23,617 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:23:32,917 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse8 (bvadd |c_ULTIMATE.start_main_~a~0#1| (_ bv4294967294 32)))) (let ((.cse7 (bvudiv |c_ULTIMATE.start_main_~n~0#1| .cse8)) (.cse6 (bvneg (bvudiv |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (.cse5 (bvurem |c_ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~a~0#1|))) (let ((.cse1 (bvmul (_ bv8 32) .cse5)) (.cse2 (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse6))) (.cse3 (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvurem |c_ULTIMATE.start_main_~n~0#1| .cse8)))) (.cse0 (bvmul (_ bv8 32) |c_ULTIMATE.start_main_~n~0#1|)) (.cse4 (bvmul (_ bv4 32) (bvmul |c_ULTIMATE.start_main_~a~0#1| |c_ULTIMATE.start_main_~a~0#1| .cse7)))) (or (not (= .cse0 (bvadd .cse1 .cse2 .cse3 .cse4 (bvneg (bvmul |c_ULTIMATE.start_main_~a~0#1| (bvmul (_ bv4 32) .cse5))) (bvneg (bvmul (bvadd (bvmul (_ bv8 32) .cse6) (bvmul (_ bv8 32) .cse7)) |c_ULTIMATE.start_main_~a~0#1|))))) (= (_ bv0 32) (bvadd (bvneg (bvmul (bvmul (_ bv4 32) |c_ULTIMATE.start_main_~a~0#1|) .cse5)) .cse1 .cse2 .cse3 (bvneg (bvmul (bvadd (bvmul (_ bv4 32) .cse7) (bvmul (_ bv4 32) .cse6)) (bvmul (_ bv2 32) |c_ULTIMATE.start_main_~a~0#1|))) (bvneg .cse0) .cse4)))))) is different from true [2024-11-13 15:23:41,357 WARN L286 SmtUtils]: Spent 8.14s on a formula simplification that was a NOOP. DAG size: 30 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:23:53,990 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:24:06,284 WARN L286 SmtUtils]: Spent 8.11s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:24:07,314 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-13 15:24:07,314 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:24:07,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038734334] [2024-11-13 15:24:07,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038734334] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:24:07,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:24:07,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 17 [2024-11-13 15:24:07,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130386439] [2024-11-13 15:24:07,315 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:24:07,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-13 15:24:07,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:24:07,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 15:24:07,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=198, Unknown=1, NotChecked=28, Total=272 [2024-11-13 15:24:07,317 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand has 17 states, 15 states have (on average 1.8) internal successors, (27), 12 states have internal predecessors, (27), 6 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-13 15:24:22,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:24:24,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:24:30,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:24:33,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.41s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:24:40,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.97s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:24:42,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:24:43,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:24:47,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.25s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:24:59,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:25:02,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:25:05,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:25:09,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:25:14,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:25:20,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:25:24,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:25:28,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 15:25:30,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:25:30,177 INFO L93 Difference]: Finished difference Result 56 states and 72 transitions. [2024-11-13 15:25:30,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 15:25:30,191 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 1.8) internal successors, (27), 12 states have internal predecessors, (27), 6 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) Word has length 39 [2024-11-13 15:25:30,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:25:30,193 INFO L225 Difference]: With dead ends: 56 [2024-11-13 15:25:30,193 INFO L226 Difference]: Without dead ends: 54 [2024-11-13 15:25:30,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 38.5s TimeCoverageRelationStatistics Valid=65, Invalid=280, Unknown=1, NotChecked=34, Total=380 [2024-11-13 15:25:30,195 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 31 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 23 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 63 IncrementalHoareTripleChecker+Unchecked, 71.6s IncrementalHoareTripleChecker+Time [2024-11-13 15:25:30,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 159 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 251 Invalid, 5 Unknown, 63 Unchecked, 71.6s Time] [2024-11-13 15:25:30,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-11-13 15:25:30,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2024-11-13 15:25:30,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 32 states have internal predecessors, (38), 15 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 15:25:30,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 68 transitions. [2024-11-13 15:25:30,215 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 68 transitions. Word has length 39 [2024-11-13 15:25:30,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:25:30,215 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 68 transitions. [2024-11-13 15:25:30,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 1.8) internal successors, (27), 12 states have internal predecessors, (27), 6 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 7 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-13 15:25:30,216 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 68 transitions. [2024-11-13 15:25:30,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-13 15:25:30,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:25:30,217 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 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] [2024-11-13 15:25:30,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-13 15:25:30,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 15:25:30,418 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:25:30,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:30,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1989970111, now seen corresponding path program 1 times [2024-11-13 15:25:30,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:25:30,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1453690866] [2024-11-13 15:25:30,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:30,419 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 [2024-11-13 15:25:30,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:25:30,420 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/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) [2024-11-13 15:25:30,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 15:25:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:30,885 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 15:25:30,888 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:25:43,330 WARN L286 SmtUtils]: Spent 9.20s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:25:52,506 WARN L286 SmtUtils]: Spent 9.18s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:26:01,627 WARN L286 SmtUtils]: Spent 9.12s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:26:10,227 WARN L286 SmtUtils]: Spent 8.60s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:26:19,383 WARN L286 SmtUtils]: Spent 9.16s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:26:23,779 WARN L851 $PredicateComparison]: unable to prove that (and (bvugt |c_ULTIMATE.start_main_~d~0#1| (_ bv2 32)) (bvule |c_ULTIMATE.start_main_~d~0#1| (_ bv20 32)) (exists ((|ULTIMATE.start_main_~n~0#1| (_ BitVec 32))) (let ((.cse0 (bvadd |c_ULTIMATE.start_main_~d~0#1| (_ bv4294967294 32)))) (and (= |c_ULTIMATE.start_main_~k~0#1| (bvurem |ULTIMATE.start_main_~n~0#1| .cse0)) (= (bvurem |ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~d~0#1|) |c_ULTIMATE.start_main_~r~0#1|) (= |c_ULTIMATE.start_main_~s~0#1| ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt roundNearestTiesToEven ((_ to_fp_unsigned 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~n~0#1|)))) (= |c_ULTIMATE.start_main_~q~0#1| (bvadd (bvmul (_ bv4 32) (bvudiv |ULTIMATE.start_main_~n~0#1| .cse0)) (bvmul (bvneg (bvudiv |ULTIMATE.start_main_~n~0#1| |c_ULTIMATE.start_main_~d~0#1|)) (_ bv4 32)))) (bvule |ULTIMATE.start_main_~n~0#1| (_ bv20 32)))))) is different from false [2024-11-13 15:26:32,300 WARN L286 SmtUtils]: Spent 8.48s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:26:41,281 WARN L286 SmtUtils]: Spent 8.98s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:26:50,271 WARN L286 SmtUtils]: Spent 8.99s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:26:58,861 WARN L286 SmtUtils]: Spent 8.59s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:27:07,913 WARN L286 SmtUtils]: Spent 9.05s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:27:17,109 WARN L286 SmtUtils]: Spent 9.05s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:27:26,142 WARN L286 SmtUtils]: Spent 9.03s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:27:35,147 WARN L286 SmtUtils]: Spent 9.00s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:27:43,741 WARN L286 SmtUtils]: Spent 8.59s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:27:52,724 WARN L286 SmtUtils]: Spent 8.98s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:28:01,882 WARN L286 SmtUtils]: Spent 9.02s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:28:11,016 WARN L286 SmtUtils]: Spent 9.13s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:28:20,002 WARN L286 SmtUtils]: Spent 8.99s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:28:28,646 WARN L286 SmtUtils]: Spent 8.64s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:28:37,743 WARN L286 SmtUtils]: Spent 9.10s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:28:46,892 WARN L286 SmtUtils]: Spent 9.00s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:28:56,011 WARN L286 SmtUtils]: Spent 9.12s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:29:05,100 WARN L286 SmtUtils]: Spent 9.09s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:29:13,727 WARN L286 SmtUtils]: Spent 8.63s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:29:22,696 WARN L286 SmtUtils]: Spent 8.97s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:29:32,114 WARN L286 SmtUtils]: Spent 9.27s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:29:41,161 WARN L286 SmtUtils]: Spent 9.05s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:29:50,328 WARN L286 SmtUtils]: Spent 9.17s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:29:59,005 WARN L286 SmtUtils]: Spent 8.68s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:30:08,211 WARN L286 SmtUtils]: Spent 9.20s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:30:16,928 WARN L286 SmtUtils]: Spent 8.59s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:30:26,042 WARN L286 SmtUtils]: Spent 9.11s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:30:35,170 WARN L286 SmtUtils]: Spent 9.13s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:30:44,304 WARN L286 SmtUtils]: Spent 9.13s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:30:53,460 WARN L286 SmtUtils]: Spent 9.15s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:31:02,604 WARN L286 SmtUtils]: Spent 9.14s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:31:12,313 WARN L286 SmtUtils]: Spent 9.71s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:31:16,653 WARN L851 $PredicateComparison]: unable to prove that (and (not (= (_ bv0 32) |c_ULTIMATE.start_main_~r~0#1|)) (exists ((|ULTIMATE.start_main_~n~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~d~0#1| (_ BitVec 32))) (let ((.cse0 (bvadd |ULTIMATE.start_main_~d~0#1| (_ bv4294967294 32)))) (and (= |c_ULTIMATE.start_main_~r~0#1| (bvurem |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~d~0#1|)) (bvuge ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt roundNearestTiesToEven ((_ to_fp_unsigned 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~n~0#1|))) |ULTIMATE.start_main_~d~0#1|) (bvule |ULTIMATE.start_main_~d~0#1| (_ bv20 32)) (= (bvurem |ULTIMATE.start_main_~n~0#1| .cse0) |c_ULTIMATE.start_main_~k~0#1|) (bvugt |ULTIMATE.start_main_~d~0#1| (_ bv2 32)) (= |c_ULTIMATE.start_main_~q~0#1| (bvadd (bvmul (_ bv4 32) (bvneg (bvudiv |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~d~0#1|))) (bvmul (_ bv4 32) (bvudiv |ULTIMATE.start_main_~n~0#1| .cse0)))) (bvule |ULTIMATE.start_main_~n~0#1| (_ bv20 32)))))) is different from false [2024-11-13 15:31:29,601 WARN L286 SmtUtils]: Spent 8.62s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:31:36,733 WARN L286 SmtUtils]: Spent 7.13s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:31:45,906 WARN L286 SmtUtils]: Spent 9.17s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:31:55,118 WARN L286 SmtUtils]: Spent 9.21s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:32:04,326 WARN L286 SmtUtils]: Spent 9.21s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:32:13,488 WARN L286 SmtUtils]: Spent 9.16s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:32:17,756 WARN L851 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~n~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~d~0#1| (_ BitVec 32))) (let ((.cse0 (bvurem |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~d~0#1|))) (and (bvuge ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt roundNearestTiesToEven ((_ to_fp_unsigned 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~n~0#1|))) |ULTIMATE.start_main_~d~0#1|) (not (= (_ bv0 32) .cse0)) (let ((.cse1 (bvadd |ULTIMATE.start_main_~d~0#1| (_ bv4294967294 32)))) (bvult (bvadd (bvmul (_ bv4 32) (bvneg (bvudiv |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~d~0#1|))) (bvmul (_ bv4 32) (bvudiv |ULTIMATE.start_main_~n~0#1| .cse1)) (bvmul (_ bv2 32) .cse0)) (bvurem |ULTIMATE.start_main_~n~0#1| .cse1))) (bvugt |ULTIMATE.start_main_~d~0#1| (_ bv2 32)) (bvule |ULTIMATE.start_main_~n~0#1| (_ bv20 32))))) is different from false [2024-11-13 15:32:21,948 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~n~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~d~0#1| (_ BitVec 32))) (let ((.cse0 (bvurem |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~d~0#1|))) (and (bvuge ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt roundNearestTiesToEven ((_ to_fp_unsigned 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~n~0#1|))) |ULTIMATE.start_main_~d~0#1|) (not (= (_ bv0 32) .cse0)) (let ((.cse1 (bvadd |ULTIMATE.start_main_~d~0#1| (_ bv4294967294 32)))) (bvult (bvadd (bvmul (_ bv4 32) (bvneg (bvudiv |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~d~0#1|))) (bvmul (_ bv4 32) (bvudiv |ULTIMATE.start_main_~n~0#1| .cse1)) (bvmul (_ bv2 32) .cse0)) (bvurem |ULTIMATE.start_main_~n~0#1| .cse1))) (bvugt |ULTIMATE.start_main_~d~0#1| (_ bv2 32)) (bvule |ULTIMATE.start_main_~n~0#1| (_ bv20 32))))) is different from true [2024-11-13 15:32:34,825 WARN L286 SmtUtils]: Spent 8.60s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:32:43,822 WARN L286 SmtUtils]: Spent 9.00s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:32:52,839 WARN L286 SmtUtils]: Spent 9.02s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:32:57,917 WARN L286 SmtUtils]: Spent 5.08s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:33:07,115 WARN L286 SmtUtils]: Spent 9.20s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:33:11,383 WARN L851 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~n~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~d~0#1| (_ BitVec 32))) (let ((.cse0 (bvurem |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~d~0#1|))) (and (bvuge ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt roundNearestTiesToEven ((_ to_fp_unsigned 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~n~0#1|))) |ULTIMATE.start_main_~d~0#1|) (not (= (_ bv0 32) .cse0)) (let ((.cse1 (bvadd |ULTIMATE.start_main_~d~0#1| (_ bv4294967294 32)))) (bvult (bvadd (bvmul (_ bv4 32) (bvneg (bvudiv |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~d~0#1|))) (bvmul (_ bv4 32) (bvudiv |ULTIMATE.start_main_~n~0#1| .cse1)) (bvmul (_ bv2 32) .cse0)) (bvurem |ULTIMATE.start_main_~n~0#1| .cse1))) (bvule |ULTIMATE.start_main_~n~0#1| (_ bv20 32))))) is different from false [2024-11-13 15:33:15,596 WARN L873 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~n~0#1| (_ BitVec 32)) (|ULTIMATE.start_main_~d~0#1| (_ BitVec 32))) (let ((.cse0 (bvurem |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~d~0#1|))) (and (bvuge ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt roundNearestTiesToEven ((_ to_fp_unsigned 11 53) roundNearestTiesToEven |ULTIMATE.start_main_~n~0#1|))) |ULTIMATE.start_main_~d~0#1|) (not (= (_ bv0 32) .cse0)) (let ((.cse1 (bvadd |ULTIMATE.start_main_~d~0#1| (_ bv4294967294 32)))) (bvult (bvadd (bvmul (_ bv4 32) (bvneg (bvudiv |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~d~0#1|))) (bvmul (_ bv4 32) (bvudiv |ULTIMATE.start_main_~n~0#1| .cse1)) (bvmul (_ bv2 32) .cse0)) (bvurem |ULTIMATE.start_main_~n~0#1| .cse1))) (bvule |ULTIMATE.start_main_~n~0#1| (_ bv20 32))))) is different from true [2024-11-13 15:33:28,491 WARN L286 SmtUtils]: Spent 8.60s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:33:37,914 WARN L286 SmtUtils]: Spent 9.42s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-13 15:33:38,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2024-11-13 15:33:38,684 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-13 15:33:38,684 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:33:38,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1453690866] [2024-11-13 15:33:38,685 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-13 15:33:38,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/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)] Forceful destruction successful, exit code 0 [2024-11-13 15:33:38,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/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 [2024-11-13 15:33:38,886 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.pushInner(QuantifierPusher.java:274) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:194) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:290) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:180) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:276) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 64 more [2024-11-13 15:33:38,893 INFO L158 Benchmark]: Toolchain (without parser) took 857841.85ms. Allocated memory was 83.9MB in the beginning and 92.3MB in the end (delta: 8.4MB). Free memory was 61.1MB in the beginning and 60.7MB in the end (delta: 447.1kB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2024-11-13 15:33:38,893 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 83.9MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:33:38,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.52ms. Allocated memory is still 83.9MB. Free memory was 60.8MB in the beginning and 47.9MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:33:38,894 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.42ms. Allocated memory is still 83.9MB. Free memory was 47.9MB in the beginning and 46.3MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:33:38,894 INFO L158 Benchmark]: Boogie Preprocessor took 43.58ms. Allocated memory is still 83.9MB. Free memory was 46.3MB in the beginning and 44.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:33:38,894 INFO L158 Benchmark]: RCFGBuilder took 5061.12ms. Allocated memory is still 83.9MB. Free memory was 44.6MB in the beginning and 29.4MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:33:38,894 INFO L158 Benchmark]: TraceAbstraction took 852391.08ms. Allocated memory was 83.9MB in the beginning and 92.3MB in the end (delta: 8.4MB). Free memory was 28.8MB in the beginning and 60.7MB in the end (delta: -31.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:33:38,896 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 83.9MB. Free memory is still 64.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.52ms. Allocated memory is still 83.9MB. Free memory was 60.8MB in the beginning and 47.9MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.42ms. Allocated memory is still 83.9MB. Free memory was 47.9MB in the beginning and 46.3MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.58ms. Allocated memory is still 83.9MB. Free memory was 46.3MB in the beginning and 44.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 5061.12ms. Allocated memory is still 83.9MB. Free memory was 44.6MB in the beginning and 29.4MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 852391.08ms. Allocated memory was 83.9MB in the beginning and 92.3MB in the end (delta: 8.4MB). Free memory was 28.8MB in the beginning and 60.7MB in the end (delta: -31.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428c0803-ef56-4478-9c9e-066aa0fb766b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")