./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_52_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_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/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_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/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_e26ba67b-a795-4749-93d5-ce36e6abc530/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 c6b9e056f53c4e0da5d1e9328327d5ed616cc5d7f3c25f2eeb36053e0a486a37 --- 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 15:51:15,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:51:15,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:51:15,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:51:15,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:51:15,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:51:15,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:51:15,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:51:15,343 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:51:15,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:51:15,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:51:15,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:51:15,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:51:15,356 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:51:15,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:51:15,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:51:15,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:51:15,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:51:15,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:51:15,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:51:15,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:51:15,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:51:15,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:51:15,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:51:15,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:51:15,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:51:15,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:51:15,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:51:15,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:51:15,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:51:15,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:51:15,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:51:15,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:51:15,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:51:15,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:51:15,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:51:15,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:51:15,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:51:15,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:51:15,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:51:15,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:51:15,408 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-23 15:51:15,453 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:51:15,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:51:15,454 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:51:15,454 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:51:15,455 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:51:15,456 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:51:15,456 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:51:15,456 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:51:15,457 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:51:15,457 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:51:15,458 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:51:15,459 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:51:15,459 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:51:15,459 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:51:15,460 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:51:15,460 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:51:15,460 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:51:15,461 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:51:15,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:51:15,464 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:51:15,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:51:15,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:51:15,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:51:15,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:51:15,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:51:15,466 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:51:15,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:51:15,467 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:51:15,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:51:15,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:51:15,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:51:15,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:51:15,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:51:15,469 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:51:15,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:51:15,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:51:15,470 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:51:15,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:51:15,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:51:15,471 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:51:15,471 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_e26ba67b-a795-4749-93d5-ce36e6abc530/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6b9e056f53c4e0da5d1e9328327d5ed616cc5d7f3c25f2eeb36053e0a486a37 [2022-11-23 15:51:15,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:51:15,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:51:15,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:51:15,817 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:51:15,818 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:51:15,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_52_bad.i [2022-11-23 15:51:18,881 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:51:19,227 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:51:19,228 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_52_bad.i [2022-11-23 15:51:19,247 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/data/8c76da436/3de776885f2640c19af25d445cdae846/FLAGcaa249522 [2022-11-23 15:51:19,263 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/data/8c76da436/3de776885f2640c19af25d445cdae846 [2022-11-23 15:51:19,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:51:19,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:51:19,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:51:19,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:51:19,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:51:19,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:51:19" (1/1) ... [2022-11-23 15:51:19,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62f45623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:19, skipping insertion in model container [2022-11-23 15:51:19,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:51:19" (1/1) ... [2022-11-23 15:51:19,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:51:19,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:51:19,732 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:51:20,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:51:20,395 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:51:20,444 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:51:20,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:51:20,647 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:51:20,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:20 WrapperNode [2022-11-23 15:51:20,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:51:20,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:51:20,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:51:20,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:51:20,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:20" (1/1) ... [2022-11-23 15:51:20,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:20" (1/1) ... [2022-11-23 15:51:20,721 INFO L138 Inliner]: procedures = 501, calls = 56, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 61 [2022-11-23 15:51:20,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:51:20,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:51:20,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:51:20,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:51:20,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:20" (1/1) ... [2022-11-23 15:51:20,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:20" (1/1) ... [2022-11-23 15:51:20,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:20" (1/1) ... [2022-11-23 15:51:20,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:20" (1/1) ... [2022-11-23 15:51:20,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:20" (1/1) ... [2022-11-23 15:51:20,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:20" (1/1) ... [2022-11-23 15:51:20,746 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:20" (1/1) ... [2022-11-23 15:51:20,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:20" (1/1) ... [2022-11-23 15:51:20,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:51:20,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:51:20,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:51:20,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:51:20,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:20" (1/1) ... [2022-11-23 15:51:20,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:51:20,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:51:20,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:51:20,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:51:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 15:51:20,847 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 15:51:20,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:51:20,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:51:20,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:51:20,847 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 15:51:20,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:51:21,068 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:51:21,070 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:51:21,303 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:51:21,376 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:51:21,390 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:51:21,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:51:21 BoogieIcfgContainer [2022-11-23 15:51:21,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:51:21,395 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:51:21,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:51:21,399 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:51:21,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:51:19" (1/3) ... [2022-11-23 15:51:21,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165d9a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:51:21, skipping insertion in model container [2022-11-23 15:51:21,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:20" (2/3) ... [2022-11-23 15:51:21,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165d9a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:51:21, skipping insertion in model container [2022-11-23 15:51:21,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:51:21" (3/3) ... [2022-11-23 15:51:21,405 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_52_bad.i [2022-11-23 15:51:21,427 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:51:21,427 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:51:21,494 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:51:21,502 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;@1629c8f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:51:21,502 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:51:21,507 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 15:51:21,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 15:51:21,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:51:21,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 15:51:21,519 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:51:21,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:51:21,528 INFO L85 PathProgramCache]: Analyzing trace with hash -2111993683, now seen corresponding path program 1 times [2022-11-23 15:51:21,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:51:21,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227608996] [2022-11-23 15:51:21,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:51:21,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:51:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:51:21,814 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:51:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:51:21,948 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:51:21,950 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:51:21,952 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 15:51:21,954 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 15:51:21,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:51:21,959 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 15:51:21,964 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:51:21,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:51:21 BoogieIcfgContainer [2022-11-23 15:51:21,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:51:21,988 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:51:21,988 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:51:21,989 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:51:21,989 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:51:21" (3/4) ... [2022-11-23 15:51:21,993 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:51:21,993 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:51:21,994 INFO L158 Benchmark]: Toolchain (without parser) took 2726.32ms. Allocated memory was 132.1MB in the beginning and 180.4MB in the end (delta: 48.2MB). Free memory was 83.3MB in the beginning and 137.9MB in the end (delta: -54.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:51:21,995 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 132.1MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:51:21,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1379.26ms. Allocated memory was 132.1MB in the beginning and 180.4MB in the end (delta: 48.2MB). Free memory was 83.3MB in the beginning and 107.6MB in the end (delta: -24.2MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2022-11-23 15:51:21,996 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.26ms. Allocated memory is still 180.4MB. Free memory was 107.6MB in the beginning and 104.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:51:21,997 INFO L158 Benchmark]: Boogie Preprocessor took 28.44ms. Allocated memory is still 180.4MB. Free memory was 104.4MB in the beginning and 103.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:51:21,997 INFO L158 Benchmark]: RCFGBuilder took 641.71ms. Allocated memory is still 180.4MB. Free memory was 103.4MB in the beginning and 83.4MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-23 15:51:21,998 INFO L158 Benchmark]: TraceAbstraction took 592.68ms. Allocated memory is still 180.4MB. Free memory was 83.4MB in the beginning and 137.9MB in the end (delta: -54.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:51:21,998 INFO L158 Benchmark]: Witness Printer took 4.75ms. Allocated memory is still 180.4MB. Free memory is still 137.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:51:22,001 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 132.1MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1379.26ms. Allocated memory was 132.1MB in the beginning and 180.4MB in the end (delta: 48.2MB). Free memory was 83.3MB in the beginning and 107.6MB in the end (delta: -24.2MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.26ms. Allocated memory is still 180.4MB. Free memory was 107.6MB in the beginning and 104.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.44ms. Allocated memory is still 180.4MB. Free memory was 104.4MB in the beginning and 103.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 641.71ms. Allocated memory is still 180.4MB. Free memory was 103.4MB in the beginning and 83.4MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 592.68ms. Allocated memory is still 180.4MB. Free memory was 83.4MB in the beginning and 137.9MB in the end (delta: -54.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.75ms. Allocated memory is still 180.4MB. Free memory is still 137.9MB. There was no memory consumed. 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: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1553, overapproximation of bitwiseAnd at line 1553. 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); [L1559] 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) [L1559] RET printLine("Calling bad()...") VAL [#in~argv={6442450947:6442450946}, argc=6442450945, argv={6442450947:6442450946}, 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=6442450945] [L1560] CALL CWE191_Integer_Underflow__int_rand_postdec_52_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_postdec_52b_badSink(data) [L1567] CALL CWE191_Integer_Underflow__int_rand_postdec_52c_badSink(data) [L1572] 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: 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 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, 0.1s 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 15:51:22,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/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_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/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_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/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_e26ba67b-a795-4749-93d5-ce36e6abc530/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 c6b9e056f53c4e0da5d1e9328327d5ed616cc5d7f3c25f2eeb36053e0a486a37 --- 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 15:51:24,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:51:24,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:51:24,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:51:24,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:51:24,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:51:24,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:51:24,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:51:24,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:51:24,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:51:24,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:51:24,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:51:24,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:51:24,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:51:24,599 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:51:24,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:51:24,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:51:24,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:51:24,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:51:24,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:51:24,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:51:24,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:51:24,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:51:24,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:51:24,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:51:24,629 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:51:24,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:51:24,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:51:24,631 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:51:24,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:51:24,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:51:24,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:51:24,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:51:24,645 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:51:24,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:51:24,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:51:24,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:51:24,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:51:24,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:51:24,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:51:24,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:51:24,668 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-23 15:51:24,710 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:51:24,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:51:24,712 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:51:24,712 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:51:24,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:51:24,714 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:51:24,714 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:51:24,714 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:51:24,714 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:51:24,715 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:51:24,716 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:51:24,716 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:51:24,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:51:24,717 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:51:24,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:51:24,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:51:24,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:51:24,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:51:24,718 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:51:24,718 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:51:24,719 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:51:24,719 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:51:24,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:51:24,719 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:51:24,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:51:24,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:51:24,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:51:24,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:51:24,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:51:24,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:51:24,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:51:24,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:51:24,722 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:51:24,722 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:51:24,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:51:24,723 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:51:24,723 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:51:24,723 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_e26ba67b-a795-4749-93d5-ce36e6abc530/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6b9e056f53c4e0da5d1e9328327d5ed616cc5d7f3c25f2eeb36053e0a486a37 [2022-11-23 15:51:25,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:51:25,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:51:25,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:51:25,147 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:51:25,148 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:51:25,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_52_bad.i [2022-11-23 15:51:28,234 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:51:28,671 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:51:28,672 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_52_bad.i [2022-11-23 15:51:28,705 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/data/3270a6a10/9bbc7ca30b7a4e309fbd2604cc1ff35b/FLAG2453cc666 [2022-11-23 15:51:28,724 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/data/3270a6a10/9bbc7ca30b7a4e309fbd2604cc1ff35b [2022-11-23 15:51:28,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:51:28,728 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:51:28,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:51:28,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:51:28,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:51:28,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:51:28" (1/1) ... [2022-11-23 15:51:28,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eda034b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:28, skipping insertion in model container [2022-11-23 15:51:28,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:51:28" (1/1) ... [2022-11-23 15:51:28,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:51:28,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:51:29,204 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:51:29,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:51:29,855 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:51:29,875 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:51:29,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:51:30,087 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:51:30,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:30 WrapperNode [2022-11-23 15:51:30,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:51:30,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:51:30,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:51:30,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:51:30,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:30" (1/1) ... [2022-11-23 15:51:30,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:30" (1/1) ... [2022-11-23 15:51:30,174 INFO L138 Inliner]: procedures = 506, calls = 56, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 61 [2022-11-23 15:51:30,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:51:30,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:51:30,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:51:30,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:51:30,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:30" (1/1) ... [2022-11-23 15:51:30,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:30" (1/1) ... [2022-11-23 15:51:30,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:30" (1/1) ... [2022-11-23 15:51:30,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:30" (1/1) ... [2022-11-23 15:51:30,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:30" (1/1) ... [2022-11-23 15:51:30,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:30" (1/1) ... [2022-11-23 15:51:30,231 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:30" (1/1) ... [2022-11-23 15:51:30,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:30" (1/1) ... [2022-11-23 15:51:30,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:51:30,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:51:30,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:51:30,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:51:30,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:30" (1/1) ... [2022-11-23 15:51:30,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:51:30,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:51:30,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:51:30,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:51:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 15:51:30,321 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 15:51:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 15:51:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:51:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:51:30,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:51:30,322 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 15:51:30,508 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:51:30,511 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:51:30,774 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:51:30,786 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:51:30,789 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:51:30,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:51:30 BoogieIcfgContainer [2022-11-23 15:51:30,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:51:30,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:51:30,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:51:30,799 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:51:30,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:51:28" (1/3) ... [2022-11-23 15:51:30,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@528e7d79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:51:30, skipping insertion in model container [2022-11-23 15:51:30,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:51:30" (2/3) ... [2022-11-23 15:51:30,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@528e7d79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:51:30, skipping insertion in model container [2022-11-23 15:51:30,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:51:30" (3/3) ... [2022-11-23 15:51:30,805 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_52_bad.i [2022-11-23 15:51:30,827 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:51:30,828 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:51:30,894 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:51:30,902 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;@6d34f5dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:51:30,902 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:51:30,908 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 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 15:51:30,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 15:51:30,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:51:30,918 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:51:30,919 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:51:30,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:51:30,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1415283626, now seen corresponding path program 1 times [2022-11-23 15:51:30,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:51:30,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014865697] [2022-11-23 15:51:30,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:51:30,948 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 15:51:30,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:51:30,957 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/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 15:51:30,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/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 15:51:31,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:51:31,129 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:51:31,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:51:31,218 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 15:51:31,225 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:51:31,226 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 15:51:31,228 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 15:51:31,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/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 15:51:31,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/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 15:51:31,444 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 15:51:31,452 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:51:31,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:51:31 BoogieIcfgContainer [2022-11-23 15:51:31,488 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:51:31,489 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:51:31,489 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:51:31,489 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:51:31,490 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:51:30" (3/4) ... [2022-11-23 15:51:31,492 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 15:51:31,535 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:51:31,535 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:51:31,536 INFO L158 Benchmark]: Toolchain (without parser) took 2807.92ms. Allocated memory is still 90.2MB. Free memory was 65.4MB in the beginning and 39.6MB in the end (delta: 25.8MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2022-11-23 15:51:31,537 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 65.0MB. Free memory was 43.5MB in the beginning and 43.4MB in the end (delta: 44.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:51:31,537 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1358.32ms. Allocated memory is still 90.2MB. Free memory was 65.1MB in the beginning and 50.0MB in the end (delta: 15.1MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2022-11-23 15:51:31,538 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.86ms. Allocated memory is still 90.2MB. Free memory was 50.0MB in the beginning and 47.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:51:31,539 INFO L158 Benchmark]: Boogie Preprocessor took 61.04ms. Allocated memory is still 90.2MB. Free memory was 47.0MB in the beginning and 45.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:51:31,539 INFO L158 Benchmark]: RCFGBuilder took 554.64ms. Allocated memory is still 90.2MB. Free memory was 45.0MB in the beginning and 59.0MB in the end (delta: -14.0MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2022-11-23 15:51:31,540 INFO L158 Benchmark]: TraceAbstraction took 694.52ms. Allocated memory is still 90.2MB. Free memory was 58.0MB in the beginning and 41.7MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 15:51:31,540 INFO L158 Benchmark]: Witness Printer took 46.21ms. Allocated memory is still 90.2MB. Free memory was 41.7MB in the beginning and 39.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:51:31,543 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 65.0MB. Free memory was 43.5MB in the beginning and 43.4MB in the end (delta: 44.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1358.32ms. Allocated memory is still 90.2MB. Free memory was 65.1MB in the beginning and 50.0MB in the end (delta: 15.1MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.86ms. Allocated memory is still 90.2MB. Free memory was 50.0MB in the beginning and 47.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.04ms. Allocated memory is still 90.2MB. Free memory was 47.0MB in the beginning and 45.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 554.64ms. Allocated memory is still 90.2MB. Free memory was 45.0MB in the beginning and 59.0MB in the end (delta: -14.0MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * TraceAbstraction took 694.52ms. Allocated memory is still 90.2MB. Free memory was 58.0MB in the beginning and 41.7MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 46.21ms. Allocated memory is still 90.2MB. Free memory was 41.7MB in the beginning and 39.6MB in the end (delta: 2.1MB). 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. - 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: 1572]: 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] [L1559] 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) [L1559] 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] [L1560] CALL CWE191_Integer_Underflow__int_rand_postdec_52_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] 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()=0, rand()=32768, rand()=0, rand()=1073741823, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_postdec_52b_badSink(data) [L1567] CALL CWE191_Integer_Underflow__int_rand_postdec_52c_badSink(data) [L1572] 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: 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 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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=23occurred 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 15:51:31,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e26ba67b-a795-4749-93d5-ce36e6abc530/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)