./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_41_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3545234169ce295ad9883e9c7d5c45a5c782796d824d643db0a0f97f96952fbb --- 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-4e7fbc6 [2022-11-23 15:43:47,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:43:47,717 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:43:47,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:43:47,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:43:47,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:43:47,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:43:47,769 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:43:47,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:43:47,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:43:47,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:43:47,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:43:47,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:43:47,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:43:47,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:43:47,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:43:47,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:43:47,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:43:47,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:43:47,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:43:47,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:43:47,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:43:47,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:43:47,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:43:47,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:43:47,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:43:47,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:43:47,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:43:47,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:43:47,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:43:47,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:43:47,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:43:47,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:43:47,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:43:47,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:43:47,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:43:47,845 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:43:47,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:43:47,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:43:47,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:43:47,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:43:47,849 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-23 15:43:47,897 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:43:47,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:43:47,898 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:43:47,898 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:43:47,899 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:43:47,899 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:43:47,900 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:43:47,900 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:43:47,900 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:43:47,901 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:43:47,902 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:43:47,902 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:43:47,903 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:43:47,903 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:43:47,903 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:43:47,904 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:43:47,904 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:43:47,904 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:43:47,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:43:47,906 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:43:47,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:43:47,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:43:47,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:43:47,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:43:47,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:43:47,908 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:43:47,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:43:47,909 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:43:47,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:43:47,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:43:47,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:43:47,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:43:47,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:43:47,911 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:43:47,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:43:47,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:43:47,912 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:43:47,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:43:47,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:43:47,913 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:43:47,913 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3545234169ce295ad9883e9c7d5c45a5c782796d824d643db0a0f97f96952fbb [2022-11-23 15:43:48,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:43:48,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:43:48,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:43:48,274 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:43:48,274 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:43:48,276 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_41_bad.i [2022-11-23 15:43:51,418 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:43:51,919 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:43:51,919 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_41_bad.i [2022-11-23 15:43:51,946 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/data/52267646a/74036090f32046d7a17c44eaaa1eb1d5/FLAGb80fc0dff [2022-11-23 15:43:51,964 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/data/52267646a/74036090f32046d7a17c44eaaa1eb1d5 [2022-11-23 15:43:51,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:43:51,969 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:43:51,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:43:51,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:43:51,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:43:51,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:43:51" (1/1) ... [2022-11-23 15:43:51,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68c9fccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:51, skipping insertion in model container [2022-11-23 15:43:51,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:43:51" (1/1) ... [2022-11-23 15:43:51,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:43:52,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:43:52,400 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:43:52,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:43:52,890 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:43:52,911 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:43:52,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:43:53,141 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:43:53,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:53 WrapperNode [2022-11-23 15:43:53,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:43:53,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:43:53,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:43:53,143 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:43:53,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:53" (1/1) ... [2022-11-23 15:43:53,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:53" (1/1) ... [2022-11-23 15:43:53,251 INFO L138 Inliner]: procedures = 500, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-11-23 15:43:53,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:43:53,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:43:53,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:43:53,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:43:53,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:53" (1/1) ... [2022-11-23 15:43:53,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:53" (1/1) ... [2022-11-23 15:43:53,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:53" (1/1) ... [2022-11-23 15:43:53,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:53" (1/1) ... [2022-11-23 15:43:53,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:53" (1/1) ... [2022-11-23 15:43:53,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:53" (1/1) ... [2022-11-23 15:43:53,308 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:53" (1/1) ... [2022-11-23 15:43:53,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:53" (1/1) ... [2022-11-23 15:43:53,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:43:53,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:43:53,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:43:53,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:43:53,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:53" (1/1) ... [2022-11-23 15:43:53,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:43:53,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:43:53,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:43:53,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:43:53,404 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 15:43:53,404 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 15:43:53,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:43:53,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:43:53,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:43:53,405 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 15:43:53,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:43:53,564 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:43:53,565 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:43:53,794 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:43:53,887 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:43:53,887 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:43:53,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:43:53 BoogieIcfgContainer [2022-11-23 15:43:53,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:43:53,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:43:53,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:43:53,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:43:53,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:43:51" (1/3) ... [2022-11-23 15:43:53,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2231ff6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:43:53, skipping insertion in model container [2022-11-23 15:43:53,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:53" (2/3) ... [2022-11-23 15:43:53,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2231ff6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:43:53, skipping insertion in model container [2022-11-23 15:43:53,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:43:53" (3/3) ... [2022-11-23 15:43:53,906 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_41_bad.i [2022-11-23 15:43:53,924 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:43:53,924 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:43:53,970 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:43:53,976 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@6b89716b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:43:53,976 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:43:53,981 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:43:53,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 15:43:53,989 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:43:53,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 15:43:53,990 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:43:53,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:43:53,996 INFO L85 PathProgramCache]: Analyzing trace with hash 2095058450, now seen corresponding path program 1 times [2022-11-23 15:43:54,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:43:54,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349071649] [2022-11-23 15:43:54,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:43:54,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:43:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:43:54,323 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:43:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:43:54,469 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:43:54,472 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:43:54,474 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 15:43:54,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 15:43:54,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:43:54,486 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 15:43:54,494 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:43:54,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:43:54 BoogieIcfgContainer [2022-11-23 15:43:54,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:43:54,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:43:54,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:43:54,533 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:43:54,534 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:43:53" (3/4) ... [2022-11-23 15:43:54,540 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:43:54,540 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:43:54,541 INFO L158 Benchmark]: Toolchain (without parser) took 2572.13ms. Allocated memory is still 190.8MB. Free memory was 156.6MB in the beginning and 102.4MB in the end (delta: 54.2MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2022-11-23 15:43:54,542 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 136.3MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:43:54,543 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1169.66ms. Allocated memory is still 190.8MB. Free memory was 156.6MB in the beginning and 151.6MB in the end (delta: 4.9MB). Peak memory consumption was 63.2MB. Max. memory is 16.1GB. [2022-11-23 15:43:54,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.59ms. Allocated memory is still 190.8MB. Free memory was 150.6MB in the beginning and 147.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:43:54,545 INFO L158 Benchmark]: Boogie Preprocessor took 52.96ms. Allocated memory is still 190.8MB. Free memory was 147.5MB in the beginning and 146.4MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:43:54,550 INFO L158 Benchmark]: RCFGBuilder took 577.84ms. Allocated memory is still 190.8MB. Free memory was 146.4MB in the beginning and 127.5MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 15:43:54,556 INFO L158 Benchmark]: TraceAbstraction took 638.62ms. Allocated memory is still 190.8MB. Free memory was 126.5MB in the beginning and 102.4MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-23 15:43:54,558 INFO L158 Benchmark]: Witness Printer took 7.54ms. Allocated memory is still 190.8MB. Free memory was 102.4MB in the beginning and 102.4MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:43:54,566 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 136.3MB. Free memory is still 78.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1169.66ms. Allocated memory is still 190.8MB. Free memory was 156.6MB in the beginning and 151.6MB in the end (delta: 4.9MB). Peak memory consumption was 63.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 115.59ms. Allocated memory is still 190.8MB. Free memory was 150.6MB in the beginning and 147.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.96ms. Allocated memory is still 190.8MB. Free memory was 147.5MB in the beginning and 146.4MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 577.84ms. Allocated memory is still 190.8MB. Free memory was 146.4MB in the beginning and 127.5MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 638.62ms. Allocated memory is still 190.8MB. Free memory was 126.5MB in the beginning and 102.4MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 7.54ms. Allocated memory is still 190.8MB. Free memory was 102.4MB in the beginning and 102.4MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1560, overapproximation of bitwiseAnd at line 1560. 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); [L1566] CALL printLine("Calling bad()...") VAL [#in~line={2:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1566] RET printLine("Calling bad()...") VAL [#in~argv={2147483652:2147483650}, argc=2147483649, argv={2147483652:2147483650}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~argc-unknown=2147483649] [L1567] CALL CWE191_Integer_Underflow__int_rand_postdec_41_bad() [L1558] int data; [L1559] data = 0 [L1560] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1560] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1560] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1561] CALL badSink(data) [L1551] 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, unknown-#in~data-unknown=-2147483648] - UnprovableResult [Line: 1551]: 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 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 [2022-11-23 15:43:54,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3545234169ce295ad9883e9c7d5c45a5c782796d824d643db0a0f97f96952fbb --- 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-4e7fbc6 [2022-11-23 15:43:57,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:43:57,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:43:57,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:43:57,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:43:57,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:43:57,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:43:57,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:43:57,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:43:57,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:43:57,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:43:57,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:43:57,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:43:57,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:43:57,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:43:57,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:43:57,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:43:57,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:43:57,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:43:57,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:43:57,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:43:57,153 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:43:57,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:43:57,155 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:43:57,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:43:57,159 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:43:57,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:43:57,161 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:43:57,161 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:43:57,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:43:57,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:43:57,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:43:57,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:43:57,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:43:57,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:43:57,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:43:57,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:43:57,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:43:57,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:43:57,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:43:57,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:43:57,176 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-23 15:43:57,203 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:43:57,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:43:57,204 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:43:57,204 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:43:57,205 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:43:57,205 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:43:57,205 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:43:57,206 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:43:57,206 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:43:57,206 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:43:57,207 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:43:57,207 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:43:57,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:43:57,208 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:43:57,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:43:57,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:43:57,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:43:57,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:43:57,210 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:43:57,210 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:43:57,210 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:43:57,211 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:43:57,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:43:57,211 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:43:57,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:43:57,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:43:57,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:43:57,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:43:57,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:43:57,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:43:57,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:43:57,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:43:57,214 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:43:57,214 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:43:57,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:43:57,215 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:43:57,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:43:57,216 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3545234169ce295ad9883e9c7d5c45a5c782796d824d643db0a0f97f96952fbb [2022-11-23 15:43:57,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:43:57,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:43:57,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:43:57,666 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:43:57,666 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:43:57,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_41_bad.i [2022-11-23 15:44:01,465 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:44:01,867 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:44:01,873 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_41_bad.i [2022-11-23 15:44:01,914 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/data/5e426d619/c1d80b9bd4c344c184f526f0078b5a94/FLAGb4232602a [2022-11-23 15:44:01,960 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/data/5e426d619/c1d80b9bd4c344c184f526f0078b5a94 [2022-11-23 15:44:01,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:44:01,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:44:01,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:44:01,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:44:01,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:44:01,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:44:01" (1/1) ... [2022-11-23 15:44:01,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30822779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:01, skipping insertion in model container [2022-11-23 15:44:01,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:44:01" (1/1) ... [2022-11-23 15:44:01,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:44:02,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:44:02,649 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:44:03,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:44:03,246 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:44:03,268 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:44:03,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:44:03,490 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:44:03,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:03 WrapperNode [2022-11-23 15:44:03,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:44:03,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:44:03,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:44:03,493 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:44:03,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:03" (1/1) ... [2022-11-23 15:44:03,530 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:03" (1/1) ... [2022-11-23 15:44:03,557 INFO L138 Inliner]: procedures = 505, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-11-23 15:44:03,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:44:03,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:44:03,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:44:03,559 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:44:03,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:03" (1/1) ... [2022-11-23 15:44:03,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:03" (1/1) ... [2022-11-23 15:44:03,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:03" (1/1) ... [2022-11-23 15:44:03,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:03" (1/1) ... [2022-11-23 15:44:03,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:03" (1/1) ... [2022-11-23 15:44:03,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:03" (1/1) ... [2022-11-23 15:44:03,590 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:03" (1/1) ... [2022-11-23 15:44:03,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:03" (1/1) ... [2022-11-23 15:44:03,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:44:03,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:44:03,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:44:03,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:44:03,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:03" (1/1) ... [2022-11-23 15:44:03,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:44:03,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:44:03,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:44:03,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:44:03,691 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 15:44:03,691 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 15:44:03,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 15:44:03,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:44:03,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:44:03,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:44:03,699 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 15:44:03,872 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:44:03,874 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:44:04,028 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:44:04,034 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:44:04,034 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:44:04,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:44:04 BoogieIcfgContainer [2022-11-23 15:44:04,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:44:04,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:44:04,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:44:04,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:44:04,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:44:01" (1/3) ... [2022-11-23 15:44:04,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee4aff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:44:04, skipping insertion in model container [2022-11-23 15:44:04,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:44:03" (2/3) ... [2022-11-23 15:44:04,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee4aff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:44:04, skipping insertion in model container [2022-11-23 15:44:04,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:44:04" (3/3) ... [2022-11-23 15:44:04,071 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_41_bad.i [2022-11-23 15:44:04,093 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:44:04,093 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:44:04,149 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:44:04,157 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@4129ac85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:44:04,158 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:44:04,163 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:44:04,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 15:44:04,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:44:04,173 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:44:04,174 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:44:04,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:44:04,181 INFO L85 PathProgramCache]: Analyzing trace with hash 733378214, now seen corresponding path program 1 times [2022-11-23 15:44:04,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:44:04,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168733055] [2022-11-23 15:44:04,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:44:04,198 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 [2022-11-23 15:44:04,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:44:04,228 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 15:44:04,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:44:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:44:04,470 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:44:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:44:04,564 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 15:44:04,566 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:44:04,568 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 15:44:04,570 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 15:44:04,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:44:04,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:44:04,792 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 15:44:04,799 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:44:04,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:44:04 BoogieIcfgContainer [2022-11-23 15:44:04,832 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:44:04,834 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:44:04,834 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:44:04,834 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:44:04,835 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:44:04" (3/4) ... [2022-11-23 15:44:04,837 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 15:44:04,888 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:44:04,888 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:44:04,890 INFO L158 Benchmark]: Toolchain (without parser) took 2918.93ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 55.7MB in the beginning and 45.7MB in the end (delta: 10.0MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2022-11-23 15:44:04,890 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 60.8MB. Free memory was 39.2MB in the beginning and 39.1MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:44:04,891 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1516.14ms. Allocated memory is still 75.5MB. Free memory was 55.5MB in the beginning and 46.9MB in the end (delta: 8.6MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2022-11-23 15:44:04,892 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.74ms. Allocated memory is still 75.5MB. Free memory was 46.9MB in the beginning and 44.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:44:04,892 INFO L158 Benchmark]: Boogie Preprocessor took 37.80ms. Allocated memory is still 75.5MB. Free memory was 43.7MB in the beginning and 41.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:44:04,893 INFO L158 Benchmark]: RCFGBuilder took 440.15ms. Allocated memory is still 75.5MB. Free memory was 41.9MB in the beginning and 29.0MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 15:44:04,894 INFO L158 Benchmark]: TraceAbstraction took 769.51ms. Allocated memory is still 92.3MB. Free memory was 64.5MB in the beginning and 48.3MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 15:44:04,895 INFO L158 Benchmark]: Witness Printer took 54.54ms. Allocated memory is still 92.3MB. Free memory was 48.3MB in the beginning and 45.7MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:44:04,898 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 60.8MB. Free memory was 39.2MB in the beginning and 39.1MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1516.14ms. Allocated memory is still 75.5MB. Free memory was 55.5MB in the beginning and 46.9MB in the end (delta: 8.6MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.74ms. Allocated memory is still 75.5MB. Free memory was 46.9MB in the beginning and 44.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.80ms. Allocated memory is still 75.5MB. Free memory was 43.7MB in the beginning and 41.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 440.15ms. Allocated memory is still 75.5MB. Free memory was 41.9MB in the beginning and 29.0MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 769.51ms. Allocated memory is still 92.3MB. Free memory was 64.5MB in the beginning and 48.3MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 54.54ms. Allocated memory is still 92.3MB. Free memory was 48.3MB in the beginning and 45.7MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1551]: 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] [L1566] CALL printLine("Calling bad()...") VAL [#in~line={2:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1566] RET printLine("Calling bad()...") VAL [#in~argv={13:12}, argc=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, unknown-#in~argc-unknown=12] [L1567] CALL CWE191_Integer_Underflow__int_rand_postdec_41_bad() [L1558] int data; [L1559] data = 0 [L1560] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1560] 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()=65535, rand()=0, rand()=0, rand()=32767, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1560] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1561] CALL badSink(data) [L1551] 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, unknown-#in~data-unknown=-2147483648] - UnprovableResult [Line: 1551]: 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 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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! [2022-11-23 15:44:04,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef60fcb9-230f-40d4-98ac-188e0eed3002/bin/utaipan-Q6hlc19bkW/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)