./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b937c48122ac1a328ad9e782856960612050621860a4d6f32ee59551169f250d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:19:05,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:19:06,063 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-23 21:19:06,067 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:19:06,068 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:19:06,092 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:19:06,095 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:19:06,096 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:19:06,097 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:19:06,098 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:19:06,099 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:19:06,100 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:19:06,101 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:19:06,102 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:19:06,102 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:19:06,103 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:19:06,103 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:19:06,104 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:19:06,105 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:19:06,105 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:19:06,106 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:19:06,106 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:19:06,107 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:19:06,108 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:19:06,108 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:19:06,109 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:19:06,109 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:19:06,109 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:19:06,110 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:19:06,110 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:19:06,111 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:19:06,111 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:19:06,112 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:19:06,113 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:19:06,113 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:19:06,113 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:19:06,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:19:06,114 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:19:06,115 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:19:06,115 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:19:06,116 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:19:06,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:19:06,117 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:19:06,117 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:19:06,118 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:19:06,118 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:19:06,119 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b937c48122ac1a328ad9e782856960612050621860a4d6f32ee59551169f250d [2023-11-23 21:19:06,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:19:06,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:19:06,492 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:19:06,494 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:19:06,496 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:19:06,497 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_good.i [2023-11-23 21:19:09,535 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:19:10,005 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:19:10,006 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_good.i [2023-11-23 21:19:10,037 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/data/1c5781e2c/226edfcc5a9845d08258900a8160485a/FLAG7f4ee03d7 [2023-11-23 21:19:10,055 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/data/1c5781e2c/226edfcc5a9845d08258900a8160485a [2023-11-23 21:19:10,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:19:10,060 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:19:10,062 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:19:10,062 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:19:10,069 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:19:10,070 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:19:10" (1/1) ... [2023-11-23 21:19:10,072 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f8389d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:10, skipping insertion in model container [2023-11-23 21:19:10,072 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:19:10" (1/1) ... [2023-11-23 21:19:10,185 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:19:10,742 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:19:12,159 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:610) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:2213) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:245) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1486) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:269) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:949) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:281) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:284) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:284) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1671) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:231) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:383) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1512) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:157) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3412) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2432) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:611) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:133) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:147) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-23 21:19:12,179 INFO L158 Benchmark]: Toolchain (without parser) took 2117.80ms. Allocated memory is still 136.3MB. Free memory was 95.9MB in the beginning and 71.4MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-23 21:19:12,181 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:19:12,181 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2114.98ms. Allocated memory is still 136.3MB. Free memory was 95.9MB in the beginning and 71.4MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-23 21:19:12,183 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 109.1MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2114.98ms. Allocated memory is still 136.3MB. Free memory was 95.9MB in the beginning and 71.4MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: 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:610) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b937c48122ac1a328ad9e782856960612050621860a4d6f32ee59551169f250d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:19:14,898 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:19:15,001 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-23 21:19:15,007 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:19:15,008 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:19:15,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:19:15,035 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:19:15,035 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:19:15,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:19:15,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:19:15,038 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:19:15,038 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:19:15,039 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:19:15,039 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:19:15,040 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:19:15,040 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:19:15,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:19:15,042 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:19:15,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:19:15,043 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:19:15,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:19:15,044 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:19:15,045 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:19:15,045 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:19:15,046 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:19:15,046 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:19:15,046 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:19:15,047 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:19:15,047 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:19:15,048 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:19:15,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:19:15,049 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:19:15,049 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:19:15,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:19:15,050 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:19:15,050 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:19:15,050 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:19:15,051 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:19:15,051 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:19:15,051 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:19:15,052 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:19:15,055 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:19:15,056 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:19:15,056 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b937c48122ac1a328ad9e782856960612050621860a4d6f32ee59551169f250d [2023-11-23 21:19:15,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:19:15,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:19:15,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:19:15,529 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:19:15,530 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:19:15,532 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_good.i [2023-11-23 21:19:18,688 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:19:19,231 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:19:19,232 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_good.i [2023-11-23 21:19:19,262 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/data/aad2ca21a/e5b60f46ec8942d890939164203fb7f1/FLAG3ecaf0332 [2023-11-23 21:19:19,281 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/data/aad2ca21a/e5b60f46ec8942d890939164203fb7f1 [2023-11-23 21:19:19,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:19:19,287 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:19:19,288 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:19:19,288 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:19:19,294 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:19:19,295 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:19:19" (1/1) ... [2023-11-23 21:19:19,296 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@494fca4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:19, skipping insertion in model container [2023-11-23 21:19:19,296 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:19:19" (1/1) ... [2023-11-23 21:19:19,411 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:19:19,877 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:19:21,049 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:19:21,076 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:19:21,114 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:19:21,220 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:19:21,473 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:21,473 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:21,473 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:21,474 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:21,474 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:21,474 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:21,482 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:19:21,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21 WrapperNode [2023-11-23 21:19:21,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:19:21,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:19:21,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:19:21,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:19:21,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... [2023-11-23 21:19:21,545 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... [2023-11-23 21:19:21,578 INFO L138 Inliner]: procedures = 945, calls = 69, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2023-11-23 21:19:21,579 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:19:21,580 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:19:21,580 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:19:21,580 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:19:21,591 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... [2023-11-23 21:19:21,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... [2023-11-23 21:19:21,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... [2023-11-23 21:19:21,596 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... [2023-11-23 21:19:21,607 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... [2023-11-23 21:19:21,609 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... [2023-11-23 21:19:21,613 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... [2023-11-23 21:19:21,615 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... [2023-11-23 21:19:21,621 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:19:21,622 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:19:21,622 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:19:21,622 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:19:21,623 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (1/1) ... [2023-11-23 21:19:21,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:19:21,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:19:21,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:19:21,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:19:21,720 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-23 21:19:21,721 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-23 21:19:21,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:19:21,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:19:21,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:19:21,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:19:21,723 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 21:19:21,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-23 21:19:21,723 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 21:19:21,724 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 21:19:21,724 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 21:19:21,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:19:21,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:19:21,921 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:19:21,924 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:19:27,247 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:19:27,311 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:19:27,312 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:19:27,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:19:27 BoogieIcfgContainer [2023-11-23 21:19:27,312 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:19:27,333 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:19:27,334 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:19:27,338 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:19:27,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:19:19" (1/3) ... [2023-11-23 21:19:27,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2081b2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:19:27, skipping insertion in model container [2023-11-23 21:19:27,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:21" (2/3) ... [2023-11-23 21:19:27,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2081b2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:19:27, skipping insertion in model container [2023-11-23 21:19:27,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:19:27" (3/3) ... [2023-11-23 21:19:27,344 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_31_good.i [2023-11-23 21:19:27,367 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:19:27,368 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-11-23 21:19:27,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:19:27,424 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@6d98b4ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:19:27,424 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-23 21:19:27,430 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 26 states have internal predecessors, (28), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 21:19:27,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 21:19:27,439 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:27,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:19:27,441 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-23 21:19:27,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:27,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1561351378, now seen corresponding path program 1 times [2023-11-23 21:19:27,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:19:27,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1772938791] [2023-11-23 21:19:27,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:27,474 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:19:27,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:19:27,477 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:19:27,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:19:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:27,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:19:27,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:19:27,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:19:27,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:19:27,793 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:19:27,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1772938791] [2023-11-23 21:19:27,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1772938791] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:19:27,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:19:27,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:19:27,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810352332] [2023-11-23 21:19:27,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:19:27,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:19:27,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:19:27,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:19:27,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:19:27,849 INFO L87 Difference]: Start difference. First operand has 33 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 26 states have internal predecessors, (28), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:19:28,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:19:28,035 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2023-11-23 21:19:28,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:19:28,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2023-11-23 21:19:28,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:19:28,050 INFO L225 Difference]: With dead ends: 33 [2023-11-23 21:19:28,051 INFO L226 Difference]: Without dead ends: 24 [2023-11-23 21:19:28,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:19:28,060 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 2 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:19:28,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 60 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:19:28,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-11-23 21:19:28,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-11-23 21:19:28,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.3125) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:19:28,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2023-11-23 21:19:28,117 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 8 [2023-11-23 21:19:28,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:19:28,120 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2023-11-23 21:19:28,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:19:28,122 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-11-23 21:19:28,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 21:19:28,126 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:28,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:19:28,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:19:28,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:19:28,332 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-23 21:19:28,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:28,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1154116862, now seen corresponding path program 1 times [2023-11-23 21:19:28,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:19:28,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394074044] [2023-11-23 21:19:28,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:28,335 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:19:28,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:19:28,338 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:19:28,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:19:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:28,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:19:28,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:19:28,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:19:28,601 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:19:28,601 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:19:28,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394074044] [2023-11-23 21:19:28,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394074044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:19:28,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:19:28,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:19:28,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046484913] [2023-11-23 21:19:28,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:19:28,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:19:28,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:19:28,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:19:28,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:19:28,607 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:19:30,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:32,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:32,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:19:32,905 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2023-11-23 21:19:32,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:19:32,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2023-11-23 21:19:32,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:19:32,913 INFO L225 Difference]: With dead ends: 25 [2023-11-23 21:19:32,913 INFO L226 Difference]: Without dead ends: 24 [2023-11-23 21:19:32,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:19:32,915 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 7 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:19:32,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 47 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2023-11-23 21:19:32,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-11-23 21:19:32,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2023-11-23 21:19:32,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:19:32,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2023-11-23 21:19:32,922 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 17 [2023-11-23 21:19:32,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:19:32,928 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2023-11-23 21:19:32,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:19:32,929 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-11-23 21:19:32,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 21:19:32,931 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:32,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:19:32,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-23 21:19:33,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:19:33,137 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-23 21:19:33,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:33,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1417888457, now seen corresponding path program 1 times [2023-11-23 21:19:33,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:19:33,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1344016452] [2023-11-23 21:19:33,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:33,139 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:19:33,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:19:33,141 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:19:33,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 21:19:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:33,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:19:33,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:19:33,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:19:33,330 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:19:33,330 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:19:33,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1344016452] [2023-11-23 21:19:33,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1344016452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:19:33,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:19:33,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:19:33,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445162760] [2023-11-23 21:19:33,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:19:33,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:19:33,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:19:33,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:19:33,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:19:33,334 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:19:33,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:19:33,382 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2023-11-23 21:19:33,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:19:33,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-23 21:19:33,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:19:33,384 INFO L225 Difference]: With dead ends: 28 [2023-11-23 21:19:33,384 INFO L226 Difference]: Without dead ends: 23 [2023-11-23 21:19:33,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:19:33,386 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:19:33,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:19:33,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-23 21:19:33,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-11-23 21:19:33,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:19:33,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2023-11-23 21:19:33,395 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 18 [2023-11-23 21:19:33,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:19:33,395 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2023-11-23 21:19:33,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:19:33,396 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2023-11-23 21:19:33,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 21:19:33,397 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:33,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:19:33,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-23 21:19:33,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:19:33,604 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 2 more)] === [2023-11-23 21:19:33,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:33,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1004744288, now seen corresponding path program 1 times [2023-11-23 21:19:33,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:19:33,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397091557] [2023-11-23 21:19:33,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:33,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:19:33,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:19:33,613 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:19:33,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd22b7bb-a638-4b98-b8b6-b4768dc8c421/bin/utaipan-verify-mE87zJ7Ire/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