./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_01_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_a8324b69-dc1a-4da1-8b9e-a91cccec17e2/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8324b69-dc1a-4da1-8b9e-a91cccec17e2/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8324b69-dc1a-4da1-8b9e-a91cccec17e2/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8324b69-dc1a-4da1-8b9e-a91cccec17e2/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8324b69-dc1a-4da1-8b9e-a91cccec17e2/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8324b69-dc1a-4da1-8b9e-a91cccec17e2/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 06bf133098404c5df892d7def67d6caeef77b427abe63e706b55c1d20b15007d --- 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-38b53e6 [2022-11-25 17:29:51,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:29:51,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:29:51,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:29:51,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:29:51,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:29:51,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:29:51,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:29:51,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:29:51,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:29:51,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:29:51,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:29:51,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:29:51,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:29:51,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:29:51,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:29:51,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:29:51,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:29:51,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:29:51,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:29:51,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:29:51,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:29:51,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:29:51,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:29:51,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:29:51,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:29:51,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:29:51,180 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:29:51,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:29:51,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:29:51,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:29:51,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:29:51,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:29:51,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:29:51,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:29:51,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:29:51,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:29:51,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:29:51,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:29:51,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:29:51,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:29:51,190 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8324b69-dc1a-4da1-8b9e-a91cccec17e2/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 17:29:51,233 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:29:51,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:29:51,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:29:51,234 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:29:51,235 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:29:51,235 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:29:51,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:29:51,236 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:29:51,236 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:29:51,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:29:51,237 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:29:51,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:29:51,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:29:51,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:29:51,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:29:51,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:29:51,239 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:29:51,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:29:51,239 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:29:51,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:29:51,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:29:51,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:29:51,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:29:51,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:29:51,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:29:51,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:29:51,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:29:51,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:29:51,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:29:51,242 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:29:51,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:29:51,242 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:29:51,242 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:29:51,243 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8324b69-dc1a-4da1-8b9e-a91cccec17e2/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8324b69-dc1a-4da1-8b9e-a91cccec17e2/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06bf133098404c5df892d7def67d6caeef77b427abe63e706b55c1d20b15007d [2022-11-25 17:29:51,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:29:51,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:29:51,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:29:51,606 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:29:51,606 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:29:51,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8324b69-dc1a-4da1-8b9e-a91cccec17e2/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_01_bad.i [2022-11-25 17:29:54,662 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:29:55,087 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:29:55,089 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8324b69-dc1a-4da1-8b9e-a91cccec17e2/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_01_bad.i [2022-11-25 17:29:55,139 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8324b69-dc1a-4da1-8b9e-a91cccec17e2/bin/uautomizer-ZsLfNo2U6R/data/fcd52e8aa/dd4a2b35eb284527b7181680b6dc5c92/FLAG71528c4fc [2022-11-25 17:29:55,161 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8324b69-dc1a-4da1-8b9e-a91cccec17e2/bin/uautomizer-ZsLfNo2U6R/data/fcd52e8aa/dd4a2b35eb284527b7181680b6dc5c92 [2022-11-25 17:29:55,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:29:55,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:29:55,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:29:55,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:29:55,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:29:55,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:29:55" (1/1) ... [2022-11-25 17:29:55,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e12f8a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:55, skipping insertion in model container [2022-11-25 17:29:55,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:29:55" (1/1) ... [2022-11-25 17:29:55,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:29:55,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:29:55,618 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:29:56,111 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:29:56,117 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:29:56,120 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:29:56,123 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:29:56,124 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:29:56,152 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:29:56,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:29:56,165 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:29:56,187 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:29:56,236 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:29:56,241 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:29:56,244 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:29:56,248 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:29:56,252 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:29:56,258 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:29:56,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:29:56,404 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:29:56,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:56 WrapperNode [2022-11-25 17:29:56,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:29:56,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:29:56,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:29:56,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:29:56,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:56" (1/1) ... [2022-11-25 17:29:56,449 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:56" (1/1) ... [2022-11-25 17:29:56,486 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 36 [2022-11-25 17:29:56,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:29:56,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:29:56,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:29:56,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:29:56,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:56" (1/1) ... [2022-11-25 17:29:56,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:56" (1/1) ... [2022-11-25 17:29:56,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:56" (1/1) ... [2022-11-25 17:29:56,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:56" (1/1) ... [2022-11-25 17:29:56,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:56" (1/1) ... [2022-11-25 17:29:56,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:56" (1/1) ... [2022-11-25 17:29:56,523 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:56" (1/1) ... [2022-11-25 17:29:56,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:56" (1/1) ... [2022-11-25 17:29:56,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:29:56,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:29:56,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:29:56,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:29:56,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:56" (1/1) ... [2022-11-25 17:29:56,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:29:56,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8324b69-dc1a-4da1-8b9e-a91cccec17e2/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:29:56,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8324b69-dc1a-4da1-8b9e-a91cccec17e2/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:29:56,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8324b69-dc1a-4da1-8b9e-a91cccec17e2/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:29:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 17:29:56,615 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 17:29:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:29:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:29:56,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:29:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 17:29:56,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:29:56,836 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:29:56,838 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:29:56,963 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:29:56,969 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:29:56,969 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:29:56,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:29:56 BoogieIcfgContainer [2022-11-25 17:29:56,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:29:56,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:29:56,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:29:56,977 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:29:56,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:29:55" (1/3) ... [2022-11-25 17:29:56,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db26c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:29:56, skipping insertion in model container [2022-11-25 17:29:56,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:29:56" (2/3) ... [2022-11-25 17:29:56,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db26c7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:29:56, skipping insertion in model container [2022-11-25 17:29:56,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:29:56" (3/3) ... [2022-11-25 17:29:56,981 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_sub_01_bad.i [2022-11-25 17:29:57,001 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:29:57,002 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:29:57,054 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:29:57,062 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4885eaee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:29:57,062 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 17:29:57,066 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 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) [2022-11-25 17:29:57,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 17:29:57,077 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:29:57,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:29:57,079 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:29:57,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:57,085 INFO L85 PathProgramCache]: Analyzing trace with hash 80251503, now seen corresponding path program 1 times [2022-11-25 17:29:57,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:57,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512923618] [2022-11-25 17:29:57,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:57,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:29:57,205 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:29:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:29:57,243 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:29:57,245 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:29:57,247 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 17:29:57,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 17:29:57,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:29:57,254 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 17:29:57,260 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:29:57,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:29:57 BoogieIcfgContainer [2022-11-25 17:29:57,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:29:57,286 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:29:57,286 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:29:57,286 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:29:57,287 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:29:56" (3/4) ... [2022-11-25 17:29:57,289 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 17:29:57,369 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8324b69-dc1a-4da1-8b9e-a91cccec17e2/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:29:57,374 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:29:57,376 INFO L158 Benchmark]: Toolchain (without parser) took 2210.82ms. Allocated memory is still 163.6MB. Free memory was 134.0MB in the beginning and 111.2MB in the end (delta: 22.9MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2022-11-25 17:29:57,377 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 130.0MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:29:57,377 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1239.85ms. Allocated memory is still 163.6MB. Free memory was 134.0MB in the beginning and 72.3MB in the end (delta: 61.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-25 17:29:57,379 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.43ms. Allocated memory is still 163.6MB. Free memory was 72.3MB in the beginning and 69.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:29:57,379 INFO L158 Benchmark]: Boogie Preprocessor took 55.24ms. Allocated memory is still 163.6MB. Free memory was 69.3MB in the beginning and 67.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:29:57,379 INFO L158 Benchmark]: RCFGBuilder took 427.95ms. Allocated memory is still 163.6MB. Free memory was 67.0MB in the beginning and 129.0MB in the end (delta: -62.0MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2022-11-25 17:29:57,380 INFO L158 Benchmark]: TraceAbstraction took 310.65ms. Allocated memory is still 163.6MB. Free memory was 128.0MB in the beginning and 113.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 17:29:57,381 INFO L158 Benchmark]: Witness Printer took 88.77ms. Allocated memory is still 163.6MB. Free memory was 113.3MB in the beginning and 111.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:29:57,382 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 130.0MB. Free memory is still 98.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1239.85ms. Allocated memory is still 163.6MB. Free memory was 134.0MB in the beginning and 72.3MB in the end (delta: 61.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.43ms. Allocated memory is still 163.6MB. Free memory was 72.3MB in the beginning and 69.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.24ms. Allocated memory is still 163.6MB. Free memory was 69.3MB in the beginning and 67.0MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 427.95ms. Allocated memory is still 163.6MB. Free memory was 67.0MB in the beginning and 129.0MB in the end (delta: -62.0MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * TraceAbstraction took 310.65ms. Allocated memory is still 163.6MB. Free memory was 128.0MB in the beginning and 113.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 88.77ms. Allocated memory is still 163.6MB. Free memory was 113.3MB in the beginning and 111.2MB 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.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: 1554]: 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] [L1561] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1561] RET printLine("Calling bad()...") VAL [\old(argc)=1073741826, argc=1073741826, argv={1073741825:1073741827}, argv={1073741825:1073741827}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1562] CALL CWE191_Integer_Underflow__int_min_sub_01_bad() [L1550] int data; [L1551] data = 0 [L1552] data = (-0x7fffffff - 1) VAL [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] [L1554] data - 1 VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1554]: 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, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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=19occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 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! [2022-11-25 17:29:57,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8324b69-dc1a-4da1-8b9e-a91cccec17e2/bin/uautomizer-ZsLfNo2U6R/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)