./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_12_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_12_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2248aeabe5be736adf4371a8cabf87839c83084d460e2eb57d2fafbdcc7f0a21 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 17:01:23,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:01:23,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:01:23,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:01:23,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:01:23,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:01:23,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:01:23,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:01:23,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:01:23,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:01:23,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:01:23,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:01:23,904 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:01:23,905 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:01:23,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:01:23,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:01:23,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:01:23,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:01:23,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:01:23,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:01:23,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:01:23,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:01:23,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:01:23,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:01:23,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:01:23,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:01:23,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:01:23,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:01:23,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:01:23,918 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:01:23,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:01:23,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:01:23,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:01:23,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:01:23,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:01:23,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:01:23,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:01:23,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:01:23,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:01:23,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:01:23,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:01:23,923 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 17:01:23,937 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:01:23,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:01:23,938 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:01:23,938 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:01:23,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:01:23,938 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:01:23,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:01:23,939 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:01:23,939 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:01:23,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:01:23,939 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:01:23,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:01:23,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:01:23,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:01:23,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:01:23,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:01:23,940 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 17:01:23,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:01:23,940 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:01:23,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:01:23,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:01:23,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:01:23,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:01:23,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:01:23,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:01:23,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:01:23,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:01:23,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:01:23,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:01:23,942 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:01:23,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:01:23,942 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:01:23,942 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:01:23,942 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:01:23,942 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2248aeabe5be736adf4371a8cabf87839c83084d460e2eb57d2fafbdcc7f0a21 [2022-12-13 17:01:24,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:01:24,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:01:24,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:01:24,128 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:01:24,128 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:01:24,129 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_12_bad.i [2022-12-13 17:01:26,772 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:01:27,040 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:01:27,041 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_12_bad.i [2022-12-13 17:01:27,057 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/data/86602df4f/70d9b28760094c10b801f80fade72aee/FLAG51ff77318 [2022-12-13 17:01:27,070 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/data/86602df4f/70d9b28760094c10b801f80fade72aee [2022-12-13 17:01:27,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:01:27,074 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:01:27,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:01:27,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:01:27,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:01:27,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:01:27" (1/1) ... [2022-12-13 17:01:27,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c2c1f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:27, skipping insertion in model container [2022-12-13 17:01:27,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:01:27" (1/1) ... [2022-12-13 17:01:27,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:01:27,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:01:27,405 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 17:01:27,712 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 17:01:27,718 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:01:27,720 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:01:27,722 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:01:27,723 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:01:27,747 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 17:01:27,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:01:27,757 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:01:27,775 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 17:01:27,822 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 17:01:27,824 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:01:27,825 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:01:27,828 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:01:27,829 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:01:27,835 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 17:01:27,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:01:27,957 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:01:27,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:27 WrapperNode [2022-12-13 17:01:27,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:01:27,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:01:27,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:01:27,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:01:27,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:27" (1/1) ... [2022-12-13 17:01:27,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:27" (1/1) ... [2022-12-13 17:01:27,995 INFO L138 Inliner]: procedures = 499, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2022-12-13 17:01:27,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:01:27,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:01:27,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:01:27,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:01:28,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:27" (1/1) ... [2022-12-13 17:01:28,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:27" (1/1) ... [2022-12-13 17:01:28,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:27" (1/1) ... [2022-12-13 17:01:28,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:27" (1/1) ... [2022-12-13 17:01:28,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:27" (1/1) ... [2022-12-13 17:01:28,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:27" (1/1) ... [2022-12-13 17:01:28,013 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:27" (1/1) ... [2022-12-13 17:01:28,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:27" (1/1) ... [2022-12-13 17:01:28,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:01:28,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:01:28,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:01:28,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:01:28,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:27" (1/1) ... [2022-12-13 17:01:28,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:01:28,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:01:28,044 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:01:28,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:01:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-12-13 17:01:28,074 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-12-13 17:01:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2022-12-13 17:01:28,074 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2022-12-13 17:01:28,074 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 17:01:28,075 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 17:01:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:01:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:01:28,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:01:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 17:01:28,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:01:28,182 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:01:28,184 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:01:28,327 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:01:28,332 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:01:28,332 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 17:01:28,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:01:28 BoogieIcfgContainer [2022-12-13 17:01:28,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:01:28,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:01:28,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:01:28,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:01:28,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:01:27" (1/3) ... [2022-12-13 17:01:28,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee5ec66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:01:28, skipping insertion in model container [2022-12-13 17:01:28,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:27" (2/3) ... [2022-12-13 17:01:28,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee5ec66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:01:28, skipping insertion in model container [2022-12-13 17:01:28,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:01:28" (3/3) ... [2022-12-13 17:01:28,340 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_12_bad.i [2022-12-13 17:01:28,355 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:01:28,356 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 17:01:28,394 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:01:28,399 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@2831ad2f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:01:28,400 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 17:01:28,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 25 states have (on average 1.36) internal successors, (34), 31 states have internal predecessors, (34), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-12-13 17:01:28,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-13 17:01:28,410 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:01:28,410 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:01:28,411 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 17:01:28,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:01:28,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1534508860, now seen corresponding path program 1 times [2022-12-13 17:01:28,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:01:28,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282593910] [2022-12-13 17:01:28,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:01:28,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:01:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:28,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:01:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:28,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 17:01:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:28,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 17:01:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:28,649 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 17:01:28,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:01:28,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282593910] [2022-12-13 17:01:28,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282593910] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:01:28,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:01:28,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:01:28,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965469338] [2022-12-13 17:01:28,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:01:28,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:01:28,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:01:28,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:01:28,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:01:28,681 INFO L87 Difference]: Start difference. First operand has 40 states, 25 states have (on average 1.36) internal successors, (34), 31 states have internal predecessors, (34), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 17:01:28,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:01:28,729 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2022-12-13 17:01:28,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:01:28,733 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), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2022-12-13 17:01:28,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:01:28,740 INFO L225 Difference]: With dead ends: 63 [2022-12-13 17:01:28,740 INFO L226 Difference]: Without dead ends: 39 [2022-12-13 17:01:28,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:01:28,746 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 14 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:01:28,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 121 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:01:28,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-13 17:01:28,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2022-12-13 17:01:28,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 25 states have internal predecessors, (29), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 17:01:28,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2022-12-13 17:01:28,785 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 21 [2022-12-13 17:01:28,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:01:28,786 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2022-12-13 17:01:28,787 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), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 17:01:28,787 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2022-12-13 17:01:28,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 17:01:28,788 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:01:28,788 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:01:28,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:01:28,789 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 17:01:28,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:01:28,790 INFO L85 PathProgramCache]: Analyzing trace with hash 325134474, now seen corresponding path program 1 times [2022-12-13 17:01:28,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:01:28,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404060175] [2022-12-13 17:01:28,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:01:28,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:01:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:28,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:01:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:28,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 17:01:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:28,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 17:01:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:28,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 17:01:28,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:01:28,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404060175] [2022-12-13 17:01:28,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404060175] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:01:28,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:01:28,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:01:28,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630399160] [2022-12-13 17:01:28,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:01:28,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:01:28,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:01:28,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:01:28,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:01:28,898 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 17:01:28,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:01:28,922 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2022-12-13 17:01:28,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:01:28,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2022-12-13 17:01:28,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:01:28,923 INFO L225 Difference]: With dead ends: 39 [2022-12-13 17:01:28,923 INFO L226 Difference]: Without dead ends: 36 [2022-12-13 17:01:28,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:01:28,925 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 7 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:01:28,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 81 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:01:28,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-12-13 17:01:28,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2022-12-13 17:01:28,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 17:01:28,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2022-12-13 17:01:28,931 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 22 [2022-12-13 17:01:28,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:01:28,931 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2022-12-13 17:01:28,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 17:01:28,932 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2022-12-13 17:01:28,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 17:01:28,932 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:01:28,933 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:01:28,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:01:28,933 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 17:01:28,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:01:28,934 INFO L85 PathProgramCache]: Analyzing trace with hash 325141457, now seen corresponding path program 1 times [2022-12-13 17:01:28,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:01:28,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790090237] [2022-12-13 17:01:28,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:01:28,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:01:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:28,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:01:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:28,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 17:01:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:29,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 17:01:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:29,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 17:01:29,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:01:29,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790090237] [2022-12-13 17:01:29,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790090237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:01:29,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:01:29,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:01:29,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128521107] [2022-12-13 17:01:29,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:01:29,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:01:29,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:01:29,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:01:29,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:01:29,017 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 17:01:29,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:01:29,040 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2022-12-13 17:01:29,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 17:01:29,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2022-12-13 17:01:29,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:01:29,041 INFO L225 Difference]: With dead ends: 36 [2022-12-13 17:01:29,041 INFO L226 Difference]: Without dead ends: 35 [2022-12-13 17:01:29,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:01:29,043 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 9 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:01:29,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 77 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:01:29,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-12-13 17:01:29,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2022-12-13 17:01:29,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 17:01:29,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2022-12-13 17:01:29,048 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 22 [2022-12-13 17:01:29,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:01:29,048 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-12-13 17:01:29,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 17:01:29,048 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2022-12-13 17:01:29,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-13 17:01:29,049 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:01:29,049 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:01:29,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:01:29,050 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 17:01:29,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:01:29,050 INFO L85 PathProgramCache]: Analyzing trace with hash -304263391, now seen corresponding path program 1 times [2022-12-13 17:01:29,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:01:29,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679502504] [2022-12-13 17:01:29,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:01:29,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:01:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:01:29,083 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:01:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:01:29,123 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:01:29,124 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 17:01:29,125 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-13 17:01:29,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-13 17:01:29,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-12-13 17:01:29,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-12-13 17:01:29,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 17:01:29,131 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 17:01:29,134 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:01:29,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:01:29 BoogieIcfgContainer [2022-12-13 17:01:29,160 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:01:29,161 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:01:29,161 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:01:29,161 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:01:29,162 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:01:28" (3/4) ... [2022-12-13 17:01:29,164 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 17:01:29,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:01:29,165 INFO L158 Benchmark]: Toolchain (without parser) took 2091.08ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 79.0MB in the beginning and 56.3MB in the end (delta: 22.7MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2022-12-13 17:01:29,165 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 92.9MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:01:29,166 INFO L158 Benchmark]: CACSL2BoogieTranslator took 882.91ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 79.0MB in the beginning and 96.0MB in the end (delta: -16.9MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2022-12-13 17:01:29,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.16ms. Allocated memory is still 159.4MB. Free memory was 96.0MB in the beginning and 93.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:01:29,167 INFO L158 Benchmark]: Boogie Preprocessor took 19.85ms. Allocated memory is still 159.4MB. Free memory was 93.1MB in the beginning and 91.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:01:29,167 INFO L158 Benchmark]: RCFGBuilder took 318.25ms. Allocated memory is still 159.4MB. Free memory was 91.0MB in the beginning and 76.1MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 17:01:29,168 INFO L158 Benchmark]: TraceAbstraction took 824.94ms. Allocated memory is still 159.4MB. Free memory was 75.8MB in the beginning and 56.3MB in the end (delta: 19.5MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2022-12-13 17:01:29,168 INFO L158 Benchmark]: Witness Printer took 3.15ms. Allocated memory is still 159.4MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:01:29,170 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 92.9MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 882.91ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 79.0MB in the beginning and 96.0MB in the end (delta: -16.9MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.16ms. Allocated memory is still 159.4MB. Free memory was 96.0MB in the beginning and 93.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.85ms. Allocated memory is still 159.4MB. Free memory was 93.1MB in the beginning and 91.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 318.25ms. Allocated memory is still 159.4MB. Free memory was 91.0MB in the beginning and 76.1MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 824.94ms. Allocated memory is still 159.4MB. Free memory was 75.8MB in the beginning and 56.3MB in the end (delta: 19.5MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * Witness Printer took 3.15ms. Allocated memory is still 159.4MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1563]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1554, overapproximation of bitwiseAnd at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1585] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={3:0}] [L1414] COND TRUE line != ((void *)0) [L1585] RET printLine("Calling bad()...") VAL [\old(argc)=3221225474, argc=3221225474, argv={3221225473:3221225475}, argv={3221225473:3221225475}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1586] CALL CWE191_Integer_Underflow__int_rand_postdec_12_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1552] RET globalReturnsTrueOrFalse() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrueOrFalse()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrueOrFalse() [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=5, rand()=65536, rand()=3, rand()=2147483647, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=2147483648] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1560] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1560] RET globalReturnsTrueOrFalse() VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrueOrFalse()=1, globalTrue=1] [L1560] COND TRUE globalReturnsTrueOrFalse() [L1563] data-- VAL [data=-2147483648, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1563]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 40 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 279 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 177 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 102 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 118 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 9/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 17:01:29,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 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_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_12_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2248aeabe5be736adf4371a8cabf87839c83084d460e2eb57d2fafbdcc7f0a21 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 17:01:30,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:01:30,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:01:30,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:01:30,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:01:30,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:01:30,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:01:30,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:01:30,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:01:30,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:01:30,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:01:30,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:01:30,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:01:30,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:01:30,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:01:30,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:01:30,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:01:30,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:01:30,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:01:30,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:01:30,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:01:30,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:01:30,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:01:30,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:01:30,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:01:30,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:01:30,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:01:30,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:01:30,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:01:30,856 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:01:30,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:01:30,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:01:30,858 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:01:30,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:01:30,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:01:30,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:01:30,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:01:30,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:01:30,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:01:30,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:01:30,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:01:30,869 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 17:01:30,892 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:01:30,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:01:30,892 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:01:30,892 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:01:30,893 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:01:30,893 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:01:30,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:01:30,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:01:30,894 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:01:30,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:01:30,894 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:01:30,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:01:30,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:01:30,895 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:01:30,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:01:30,895 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 17:01:30,896 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 17:01:30,896 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 17:01:30,896 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 17:01:30,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:01:30,896 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:01:30,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:01:30,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:01:30,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:01:30,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:01:30,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:01:30,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:01:30,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:01:30,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:01:30,897 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 17:01:30,897 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 17:01:30,897 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:01:30,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:01:30,898 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:01:30,898 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:01:30,898 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 17:01:30,898 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:01:30,898 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2248aeabe5be736adf4371a8cabf87839c83084d460e2eb57d2fafbdcc7f0a21 [2022-12-13 17:01:31,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:01:31,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:01:31,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:01:31,158 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:01:31,159 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:01:31,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_12_bad.i [2022-12-13 17:01:33,740 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:01:33,946 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:01:33,953 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_12_bad.i [2022-12-13 17:01:33,972 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/data/77153aa4c/ed9c7cd883974dd691a95f5f611516ea/FLAG61b445720 [2022-12-13 17:01:33,987 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/data/77153aa4c/ed9c7cd883974dd691a95f5f611516ea [2022-12-13 17:01:33,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:01:33,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:01:33,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:01:33,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:01:33,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:01:33,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:01:33" (1/1) ... [2022-12-13 17:01:33,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@492bcbe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:33, skipping insertion in model container [2022-12-13 17:01:33,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:01:33" (1/1) ... [2022-12-13 17:01:34,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:01:34,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:01:34,278 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 17:01:34,542 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 17:01:34,546 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:01:34,547 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:01:34,548 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:01:34,549 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:01:34,567 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 17:01:34,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:01:34,577 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:01:34,590 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 17:01:34,623 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 17:01:34,624 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:01:34,625 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:01:34,626 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:01:34,627 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:01:34,631 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 17:01:34,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:01:34,733 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:01:34,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:34 WrapperNode [2022-12-13 17:01:34,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:01:34,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:01:34,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:01:34,734 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:01:34,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:34" (1/1) ... [2022-12-13 17:01:34,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:34" (1/1) ... [2022-12-13 17:01:34,770 INFO L138 Inliner]: procedures = 504, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2022-12-13 17:01:34,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:01:34,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:01:34,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:01:34,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:01:34,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:34" (1/1) ... [2022-12-13 17:01:34,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:34" (1/1) ... [2022-12-13 17:01:34,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:34" (1/1) ... [2022-12-13 17:01:34,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:34" (1/1) ... [2022-12-13 17:01:34,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:34" (1/1) ... [2022-12-13 17:01:34,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:34" (1/1) ... [2022-12-13 17:01:34,789 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:34" (1/1) ... [2022-12-13 17:01:34,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:34" (1/1) ... [2022-12-13 17:01:34,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:01:34,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:01:34,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:01:34,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:01:34,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:34" (1/1) ... [2022-12-13 17:01:34,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:01:34,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:01:34,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:01:34,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:01:34,844 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-12-13 17:01:34,844 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-12-13 17:01:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2022-12-13 17:01:34,845 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2022-12-13 17:01:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 17:01:34,845 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 17:01:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 17:01:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:01:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:01:34,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:01:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 17:01:34,961 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:01:34,963 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:01:35,110 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:01:35,116 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:01:35,116 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 17:01:35,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:01:35 BoogieIcfgContainer [2022-12-13 17:01:35,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:01:35,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:01:35,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:01:35,124 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:01:35,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:01:33" (1/3) ... [2022-12-13 17:01:35,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62edb291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:01:35, skipping insertion in model container [2022-12-13 17:01:35,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:01:34" (2/3) ... [2022-12-13 17:01:35,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62edb291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:01:35, skipping insertion in model container [2022-12-13 17:01:35,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:01:35" (3/3) ... [2022-12-13 17:01:35,127 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_12_bad.i [2022-12-13 17:01:35,147 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:01:35,147 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 17:01:35,196 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:01:35,203 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@2fba636f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:01:35,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 17:01:35,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 23 states have (on average 1.391304347826087) internal successors, (32), 29 states have internal predecessors, (32), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-12-13 17:01:35,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-13 17:01:35,214 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:01:35,215 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:01:35,215 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 17:01:35,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:01:35,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1566579328, now seen corresponding path program 1 times [2022-12-13 17:01:35,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:01:35,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [85916229] [2022-12-13 17:01:35,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:01:35,235 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 [2022-12-13 17:01:35,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:01:35,237 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 17:01:35,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:01:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:35,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 17:01:35,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:01:35,401 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 17:01:35,401 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:01:35,402 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:01:35,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [85916229] [2022-12-13 17:01:35,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [85916229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:01:35,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:01:35,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:01:35,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347367261] [2022-12-13 17:01:35,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:01:35,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:01:35,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:01:35,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:01:35,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:01:35,431 INFO L87 Difference]: Start difference. First operand has 38 states, 23 states have (on average 1.391304347826087) internal successors, (32), 29 states have internal predecessors, (32), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 17:01:35,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:01:35,486 INFO L93 Difference]: Finished difference Result 58 states and 72 transitions. [2022-12-13 17:01:35,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:01:35,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2022-12-13 17:01:35,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:01:35,494 INFO L225 Difference]: With dead ends: 58 [2022-12-13 17:01:35,494 INFO L226 Difference]: Without dead ends: 27 [2022-12-13 17:01:35,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:01:35,504 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 7 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:01:35,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 116 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:01:35,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-13 17:01:35,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2022-12-13 17:01:35,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 17:01:35,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-12-13 17:01:35,531 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 19 [2022-12-13 17:01:35,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:01:35,532 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-12-13 17:01:35,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 17:01:35,533 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-12-13 17:01:35,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 17:01:35,534 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:01:35,534 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:01:35,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:01:35,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:01:35,735 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 17:01:35,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:01:35,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1319311861, now seen corresponding path program 1 times [2022-12-13 17:01:35,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:01:35,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [868738702] [2022-12-13 17:01:35,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:01:35,736 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 [2022-12-13 17:01:35,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:01:35,737 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 17:01:35,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:01:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:01:35,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 17:01:35,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:01:35,842 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 17:01:35,842 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:01:35,843 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:01:35,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [868738702] [2022-12-13 17:01:35,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [868738702] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:01:35,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:01:35,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:01:35,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307173507] [2022-12-13 17:01:35,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:01:35,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 17:01:35,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:01:35,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 17:01:35,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 17:01:35,846 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 17:01:35,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:01:35,867 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-12-13 17:01:35,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 17:01:35,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2022-12-13 17:01:35,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:01:35,868 INFO L225 Difference]: With dead ends: 27 [2022-12-13 17:01:35,868 INFO L226 Difference]: Without dead ends: 22 [2022-12-13 17:01:35,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 17:01:35,870 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 1 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:01:35,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 71 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:01:35,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-12-13 17:01:35,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-12-13 17:01:35,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 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) [2022-12-13 17:01:35,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2022-12-13 17:01:35,875 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 20 [2022-12-13 17:01:35,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:01:35,875 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2022-12-13 17:01:35,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 17:01:35,876 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2022-12-13 17:01:35,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-13 17:01:35,876 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:01:35,876 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:01:35,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:01:36,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:01:36,079 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 17:01:36,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:01:36,080 INFO L85 PathProgramCache]: Analyzing trace with hash -393790821, now seen corresponding path program 1 times [2022-12-13 17:01:36,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:01:36,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1438392435] [2022-12-13 17:01:36,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:01:36,083 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 [2022-12-13 17:01:36,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:01:36,086 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 17:01:36,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:01:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:01:36,231 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:01:36,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:01:36,280 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 17:01:36,280 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 17:01:36,281 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-13 17:01:36,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-13 17:01:36,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-12-13 17:01:36,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-12-13 17:01:36,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:01:36,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:01:36,494 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 17:01:36,506 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:01:36,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:01:36 BoogieIcfgContainer [2022-12-13 17:01:36,581 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:01:36,582 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:01:36,582 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:01:36,583 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:01:36,584 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:01:35" (3/4) ... [2022-12-13 17:01:36,588 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 17:01:36,646 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:01:36,646 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:01:36,647 INFO L158 Benchmark]: Toolchain (without parser) took 2655.64ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 57.6MB in the beginning and 42.5MB in the end (delta: 15.1MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2022-12-13 17:01:36,647 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory was 39.5MB in the beginning and 39.4MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:01:36,647 INFO L158 Benchmark]: CACSL2BoogieTranslator took 740.82ms. Allocated memory is still 77.6MB. Free memory was 57.4MB in the beginning and 46.9MB in the end (delta: 10.5MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2022-12-13 17:01:36,648 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.01ms. Allocated memory is still 77.6MB. Free memory was 46.9MB in the beginning and 43.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 17:01:36,648 INFO L158 Benchmark]: Boogie Preprocessor took 21.13ms. Allocated memory is still 77.6MB. Free memory was 43.8MB in the beginning and 41.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:01:36,648 INFO L158 Benchmark]: RCFGBuilder took 325.46ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 41.7MB in the beginning and 62.9MB in the end (delta: -21.2MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2022-12-13 17:01:36,648 INFO L158 Benchmark]: TraceAbstraction took 1459.74ms. Allocated memory is still 94.4MB. Free memory was 62.4MB in the beginning and 45.1MB in the end (delta: 17.3MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2022-12-13 17:01:36,649 INFO L158 Benchmark]: Witness Printer took 64.29ms. Allocated memory is still 94.4MB. Free memory was 45.1MB in the beginning and 42.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:01:36,650 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory was 39.5MB in the beginning and 39.4MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 740.82ms. Allocated memory is still 77.6MB. Free memory was 57.4MB in the beginning and 46.9MB in the end (delta: 10.5MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.01ms. Allocated memory is still 77.6MB. Free memory was 46.9MB in the beginning and 43.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.13ms. Allocated memory is still 77.6MB. Free memory was 43.8MB in the beginning and 41.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 325.46ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 41.7MB in the beginning and 62.9MB in the end (delta: -21.2MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1459.74ms. Allocated memory is still 94.4MB. Free memory was 62.4MB in the beginning and 45.1MB in the end (delta: 17.3MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * Witness Printer took 64.29ms. Allocated memory is still 94.4MB. Free memory was 45.1MB in the beginning and 42.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1563]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1585] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={3:0}] [L1414] COND TRUE line != ((void *)0) [L1585] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1586] CALL CWE191_Integer_Underflow__int_rand_postdec_12_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1552] RET globalReturnsTrueOrFalse() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrueOrFalse()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrueOrFalse() [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=65536, rand()=0, rand()=0, rand()=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1560] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1560] RET globalReturnsTrueOrFalse() VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrueOrFalse()=1, globalTrue=1] [L1560] COND TRUE globalReturnsTrueOrFalse() [L1563] data-- VAL [data=-2147483648, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1563]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 38 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 187 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 119 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 68 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 2 NumberOfNonLiveVariables, 125 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 17:01:36,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91020a36-2c02-45bd-9b79-6b11fd2f7abc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)