./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_51_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/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_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/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_8953193f-72f0-446c-a9a3-1819cb1ea667/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 5d162ec91306b91f2a4b9108474bf08715ba8d189fbb64ab6f2465aba4e8d2e2 --- 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 17:19:56,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:19:56,095 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:19:56,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:19:56,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:19:56,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:19:56,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:19:56,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:19:56,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:19:56,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:19:56,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:19:56,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:19:56,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:19:56,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:19:56,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:19:56,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:19:56,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:19:56,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:19:56,149 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:19:56,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:19:56,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:19:56,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:19:56,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:19:56,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:19:56,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:19:56,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:19:56,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:19:56,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:19:56,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:19:56,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:19:56,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:19:56,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:19:56,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:19:56,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:19:56,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:19:56,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:19:56,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:19:56,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:19:56,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:19:56,180 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:19:56,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:19:56,185 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 17:19:56,225 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:19:56,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:19:56,226 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:19:56,227 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:19:56,227 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:19:56,228 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:19:56,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:19:56,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:19:56,247 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:19:56,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:19:56,248 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:19:56,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:19:56,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:19:56,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:19:56,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:19:56,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:19:56,249 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:19:56,250 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:19:56,250 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:19:56,250 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:19:56,250 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:19:56,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:19:56,251 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:19:56,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:19:56,251 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:19:56,251 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:19:56,252 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:19:56,252 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:19:56,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:19:56,253 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:19:56,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:19:56,253 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:19:56,254 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:19:56,254 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_8953193f-72f0-446c-a9a3-1819cb1ea667/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d162ec91306b91f2a4b9108474bf08715ba8d189fbb64ab6f2465aba4e8d2e2 [2022-11-25 17:19:56,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:19:56,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:19:56,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:19:56,532 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:19:56,533 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:19:56,534 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_51_bad.i [2022-11-25 17:19:59,596 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:19:59,954 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:19:59,955 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_51_bad.i [2022-11-25 17:19:59,981 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/data/796d681ba/7c6f77554caf4a859f75f111977cc38f/FLAGd4d88c3c9 [2022-11-25 17:20:00,001 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/data/796d681ba/7c6f77554caf4a859f75f111977cc38f [2022-11-25 17:20:00,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:20:00,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:20:00,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:20:00,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:20:00,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:20:00,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:20:00" (1/1) ... [2022-11-25 17:20:00,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fde199c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:00, skipping insertion in model container [2022-11-25 17:20:00,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:20:00" (1/1) ... [2022-11-25 17:20:00,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:20:00,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:20:00,499 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:20:00,977 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:20:00,983 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:20:00,986 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:20:00,994 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:20:00,995 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:20:01,013 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 17:20:01,016 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:20:01,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:20:01,036 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:20:01,056 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:20:01,105 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:20:01,107 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:20:01,108 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:20:01,111 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:20:01,112 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:20:01,116 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 17:20:01,118 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:20:01,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:20:01,252 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:20:01,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:01 WrapperNode [2022-11-25 17:20:01,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:20:01,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:20:01,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:20:01,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:20:01,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:01" (1/1) ... [2022-11-25 17:20:01,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:01" (1/1) ... [2022-11-25 17:20:01,327 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 54 [2022-11-25 17:20:01,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:20:01,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:20:01,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:20:01,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:20:01,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:01" (1/1) ... [2022-11-25 17:20:01,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:01" (1/1) ... [2022-11-25 17:20:01,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:01" (1/1) ... [2022-11-25 17:20:01,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:01" (1/1) ... [2022-11-25 17:20:01,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:01" (1/1) ... [2022-11-25 17:20:01,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:01" (1/1) ... [2022-11-25 17:20:01,349 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:01" (1/1) ... [2022-11-25 17:20:01,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:01" (1/1) ... [2022-11-25 17:20:01,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:20:01,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:20:01,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:20:01,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:20:01,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:01" (1/1) ... [2022-11-25 17:20:01,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:20:01,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:20:01,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:20:01,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:20:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 17:20:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 17:20:01,443 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 17:20:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:20:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 17:20:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:20:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:20:01,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:20:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:20:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 17:20:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:20:01,633 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:20:01,637 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:20:01,822 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:20:01,828 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:20:01,828 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:20:01,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:20:01 BoogieIcfgContainer [2022-11-25 17:20:01,830 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:20:01,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:20:01,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:20:01,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:20:01,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:20:00" (1/3) ... [2022-11-25 17:20:01,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21eb5a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:20:01, skipping insertion in model container [2022-11-25 17:20:01,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:01" (2/3) ... [2022-11-25 17:20:01,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21eb5a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:20:01, skipping insertion in model container [2022-11-25 17:20:01,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:20:01" (3/3) ... [2022-11-25 17:20:01,846 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_51_bad.i [2022-11-25 17:20:01,867 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:20:01,867 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:20:01,929 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:20:01,939 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;@5abf383e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:20:01,939 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 17:20:01,945 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 17:20:01,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 17:20:01,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:01,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:01,956 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:20:01,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:01,961 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-11-25 17:20:01,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:01,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512845814] [2022-11-25 17:20:01,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:01,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:02,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:02,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:20:02,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:02,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:02,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:20:02,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512845814] [2022-11-25 17:20:02,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512845814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:02,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:02,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:20:02,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674735191] [2022-11-25 17:20:02,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:02,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:20:02,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:20:02,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:20:02,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:20:02,377 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:20:02,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:02,406 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-11-25 17:20:02,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:20:02,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-25 17:20:02,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:02,415 INFO L225 Difference]: With dead ends: 31 [2022-11-25 17:20:02,415 INFO L226 Difference]: Without dead ends: 15 [2022-11-25 17:20:02,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:20:02,421 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 9 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:02,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 52 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:20:02,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-25 17:20:02,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-25 17:20:02,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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 17:20:02,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-25 17:20:02,455 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-11-25 17:20:02,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:02,457 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-25 17:20:02,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:20:02,457 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-25 17:20:02,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 17:20:02,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:02,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:02,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:20:02,459 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:20:02,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:02,460 INFO L85 PathProgramCache]: Analyzing trace with hash -761705229, now seen corresponding path program 1 times [2022-11-25 17:20:02,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:20:02,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39967250] [2022-11-25 17:20:02,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:02,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:20:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:20:02,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:20:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:20:02,541 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:20:02,542 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:20:02,543 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 17:20:02,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 17:20:02,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:20:02,550 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 17:20:02,553 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:20:02,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:20:02 BoogieIcfgContainer [2022-11-25 17:20:02,600 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:20:02,602 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:20:02,604 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:20:02,605 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:20:02,606 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:20:01" (3/4) ... [2022-11-25 17:20:02,609 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:20:02,609 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:20:02,610 INFO L158 Benchmark]: Toolchain (without parser) took 2599.99ms. Allocated memory is still 161.5MB. Free memory was 113.4MB in the beginning and 79.0MB in the end (delta: 34.4MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2022-11-25 17:20:02,611 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 161.5MB. Free memory is still 131.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:20:02,615 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1242.23ms. Allocated memory is still 161.5MB. Free memory was 113.4MB in the beginning and 50.4MB in the end (delta: 63.1MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-25 17:20:02,616 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.21ms. Allocated memory is still 161.5MB. Free memory was 50.4MB in the beginning and 127.7MB in the end (delta: -77.3MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2022-11-25 17:20:02,620 INFO L158 Benchmark]: Boogie Preprocessor took 24.59ms. Allocated memory is still 161.5MB. Free memory was 127.7MB in the beginning and 126.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:20:02,620 INFO L158 Benchmark]: RCFGBuilder took 476.79ms. Allocated memory is still 161.5MB. Free memory was 126.4MB in the beginning and 113.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:20:02,620 INFO L158 Benchmark]: TraceAbstraction took 768.33ms. Allocated memory is still 161.5MB. Free memory was 113.0MB in the beginning and 79.5MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-25 17:20:02,621 INFO L158 Benchmark]: Witness Printer took 7.99ms. Allocated memory is still 161.5MB. Free memory was 79.5MB in the beginning and 79.0MB in the end (delta: 426.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:20:02,627 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 161.5MB. Free memory is still 131.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1242.23ms. Allocated memory is still 161.5MB. Free memory was 113.4MB in the beginning and 50.4MB in the end (delta: 63.1MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.21ms. Allocated memory is still 161.5MB. Free memory was 50.4MB in the beginning and 127.7MB in the end (delta: -77.3MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.59ms. Allocated memory is still 161.5MB. Free memory was 127.7MB in the beginning and 126.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 476.79ms. Allocated memory is still 161.5MB. Free memory was 126.4MB in the beginning and 113.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 768.33ms. Allocated memory is still 161.5MB. Free memory was 113.0MB in the beginning and 79.5MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 7.99ms. Allocated memory is still 161.5MB. Free memory was 79.5MB in the beginning and 79.0MB in the end (delta: 426.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] 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={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=1073741830, argc=1073741830, argv={1073741827:1073741831}, argv={1073741827:1073741831}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_multiply_51_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_multiply_51b_badSink(data) [L1576] COND TRUE data > 0 VAL [\old(data)=1073741824, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] data * 2 VAL [\old(data)=1073741824, data=1073741824, 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: 1578]: 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2022-11-25 17:20:02,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/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_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/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 5d162ec91306b91f2a4b9108474bf08715ba8d189fbb64ab6f2465aba4e8d2e2 --- 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 17:20:05,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:20:05,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:20:05,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:20:05,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:20:05,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:20:05,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:20:05,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:20:05,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:20:05,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:20:05,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:20:05,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:20:05,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:20:05,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:20:05,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:20:05,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:20:05,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:20:05,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:20:05,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:20:05,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:20:05,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:20:05,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:20:05,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:20:05,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:20:05,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:20:05,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:20:05,187 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:20:05,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:20:05,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:20:05,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:20:05,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:20:05,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:20:05,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:20:05,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:20:05,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:20:05,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:20:05,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:20:05,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:20:05,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:20:05,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:20:05,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:20:05,203 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-25 17:20:05,245 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:20:05,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:20:05,251 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:20:05,251 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:20:05,252 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:20:05,252 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:20:05,253 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:20:05,253 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:20:05,253 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:20:05,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:20:05,254 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:20:05,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:20:05,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:20:05,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:20:05,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:20:05,255 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:20:05,255 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:20:05,255 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:20:05,255 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:20:05,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:20:05,256 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:20:05,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:20:05,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:20:05,257 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:20:05,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:20:05,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:20:05,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:20:05,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:20:05,258 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:20:05,258 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:20:05,258 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:20:05,258 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:20:05,259 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:20:05,259 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:20:05,259 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:20:05,259 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:20:05,260 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_8953193f-72f0-446c-a9a3-1819cb1ea667/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d162ec91306b91f2a4b9108474bf08715ba8d189fbb64ab6f2465aba4e8d2e2 [2022-11-25 17:20:05,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:20:05,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:20:05,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:20:05,660 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:20:05,661 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:20:05,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_51_bad.i [2022-11-25 17:20:08,683 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:20:09,105 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:20:09,109 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_51_bad.i [2022-11-25 17:20:09,143 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/data/00996f656/833e9c3e9b3146e5943dd05c17c9e7fa/FLAGaee0ee4a1 [2022-11-25 17:20:09,167 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/data/00996f656/833e9c3e9b3146e5943dd05c17c9e7fa [2022-11-25 17:20:09,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:20:09,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:20:09,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:20:09,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:20:09,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:20:09,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:20:09" (1/1) ... [2022-11-25 17:20:09,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42b02a78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:09, skipping insertion in model container [2022-11-25 17:20:09,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:20:09" (1/1) ... [2022-11-25 17:20:09,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:20:09,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:20:09,672 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:20:10,480 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:20:10,501 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:20:10,504 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:20:10,506 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:20:10,507 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:20:10,553 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 17:20:10,559 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:20:10,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:20:10,588 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:20:10,618 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:20:10,685 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:20:10,687 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:20:10,688 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:20:10,689 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:20:10,690 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:20:10,694 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 17:20:10,695 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:20:10,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:20:10,835 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:20:10,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:10 WrapperNode [2022-11-25 17:20:10,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:20:10,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:20:10,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:20:10,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:20:10,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:10" (1/1) ... [2022-11-25 17:20:10,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:10" (1/1) ... [2022-11-25 17:20:10,892 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 53 [2022-11-25 17:20:10,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:20:10,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:20:10,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:20:10,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:20:10,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:10" (1/1) ... [2022-11-25 17:20:10,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:10" (1/1) ... [2022-11-25 17:20:10,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:10" (1/1) ... [2022-11-25 17:20:10,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:10" (1/1) ... [2022-11-25 17:20:10,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:10" (1/1) ... [2022-11-25 17:20:10,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:10" (1/1) ... [2022-11-25 17:20:10,920 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:10" (1/1) ... [2022-11-25 17:20:10,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:10" (1/1) ... [2022-11-25 17:20:10,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:20:10,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:20:10,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:20:10,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:20:10,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:10" (1/1) ... [2022-11-25 17:20:10,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:20:10,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:20:10,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:20:11,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:20:11,022 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 17:20:11,022 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 17:20:11,023 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 17:20:11,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:20:11,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 17:20:11,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:20:11,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:20:11,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:20:11,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:20:11,023 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 17:20:11,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-25 17:20:11,209 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:20:11,211 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:20:11,400 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:20:11,406 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:20:11,406 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:20:11,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:20:11 BoogieIcfgContainer [2022-11-25 17:20:11,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:20:11,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:20:11,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:20:11,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:20:11,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:20:09" (1/3) ... [2022-11-25 17:20:11,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c90aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:20:11, skipping insertion in model container [2022-11-25 17:20:11,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:20:10" (2/3) ... [2022-11-25 17:20:11,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c90aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:20:11, skipping insertion in model container [2022-11-25 17:20:11,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:20:11" (3/3) ... [2022-11-25 17:20:11,416 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_51_bad.i [2022-11-25 17:20:11,434 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:20:11,435 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:20:11,502 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:20:11,508 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;@39abc099, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:20:11,509 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 17:20:11,514 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 17:20:11,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 17:20:11,522 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:11,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:11,526 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:20:11,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:11,535 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-11-25 17:20:11,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:20:11,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [536706500] [2022-11-25 17:20:11,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:11,553 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 [2022-11-25 17:20:11,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:20:11,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:20:11,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:20:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:20:11,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:20:11,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:20:11,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:20:11,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:20:11,802 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:20:11,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [536706500] [2022-11-25 17:20:11,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [536706500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:20:11,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:20:11,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:20:11,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626827912] [2022-11-25 17:20:11,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:20:11,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:20:11,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:20:11,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:20:11,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:20:11,841 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:20:11,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:20:11,872 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-11-25 17:20:11,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:20:11,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-25 17:20:11,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:20:11,881 INFO L225 Difference]: With dead ends: 31 [2022-11-25 17:20:11,881 INFO L226 Difference]: Without dead ends: 15 [2022-11-25 17:20:11,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:20:11,887 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 9 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:20:11,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 49 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:20:11,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-25 17:20:11,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-25 17:20:11,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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 17:20:11,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-25 17:20:11,935 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-11-25 17:20:11,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:20:11,937 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-25 17:20:11,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:20:11,937 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-25 17:20:11,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 17:20:11,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:20:11,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:20:11,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:20:12,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:20:12,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:20:12,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:20:12,163 INFO L85 PathProgramCache]: Analyzing trace with hash -761705229, now seen corresponding path program 1 times [2022-11-25 17:20:12,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:20:12,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1274795647] [2022-11-25 17:20:12,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:20:12,165 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 [2022-11-25 17:20:12,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:20:12,166 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:20:12,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 17:20:12,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:20:12,319 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:20:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:20:12,384 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 17:20:12,384 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:20:12,386 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 17:20:12,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 17:20:12,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:20:12,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:20:12,593 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 17:20:12,597 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:20:12,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:20:12 BoogieIcfgContainer [2022-11-25 17:20:12,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:20:12,628 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:20:12,628 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:20:12,628 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:20:12,630 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:20:11" (3/4) ... [2022-11-25 17:20:12,634 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:20:12,634 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:20:12,635 INFO L158 Benchmark]: Toolchain (without parser) took 3462.19ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 69.4MB in the beginning and 72.7MB in the end (delta: -3.3MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2022-11-25 17:20:12,635 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 71.3MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:20:12,636 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1662.43ms. Allocated memory is still 94.4MB. Free memory was 69.1MB in the beginning and 51.8MB in the end (delta: 17.3MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2022-11-25 17:20:12,636 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.60ms. Allocated memory is still 94.4MB. Free memory was 51.8MB in the beginning and 48.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:20:12,637 INFO L158 Benchmark]: Boogie Preprocessor took 32.01ms. Allocated memory is still 94.4MB. Free memory was 48.8MB in the beginning and 46.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:20:12,637 INFO L158 Benchmark]: RCFGBuilder took 482.04ms. Allocated memory is still 94.4MB. Free memory was 46.7MB in the beginning and 58.7MB in the end (delta: -12.0MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2022-11-25 17:20:12,638 INFO L158 Benchmark]: TraceAbstraction took 1217.69ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 57.7MB in the beginning and 73.3MB in the end (delta: -15.5MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2022-11-25 17:20:12,639 INFO L158 Benchmark]: Witness Printer took 6.06ms. Allocated memory is still 113.2MB. Free memory was 73.3MB in the beginning and 72.7MB in the end (delta: 602.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:20:12,642 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 71.3MB. Free memory is still 50.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1662.43ms. Allocated memory is still 94.4MB. Free memory was 69.1MB in the beginning and 51.8MB in the end (delta: 17.3MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.60ms. Allocated memory is still 94.4MB. Free memory was 51.8MB in the beginning and 48.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.01ms. Allocated memory is still 94.4MB. Free memory was 48.8MB in the beginning and 46.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 482.04ms. Allocated memory is still 94.4MB. Free memory was 46.7MB in the beginning and 58.7MB in the end (delta: -12.0MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1217.69ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 57.7MB in the beginning and 73.3MB in the end (delta: -15.5MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. * Witness Printer took 6.06ms. Allocated memory is still 113.2MB. Free memory was 73.3MB in the beginning and 72.7MB in the end (delta: 602.2kB). 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 - UnprovableResult [Line: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] 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={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_multiply_51_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_multiply_51b_badSink(data) [L1576] COND TRUE data > 0 VAL [\old(data)=1073741824, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] data * 2 VAL [\old(data)=1073741824, data=1073741824, 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: 1578]: 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 28 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2022-11-25 17:20:12,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8953193f-72f0-446c-a9a3-1819cb1ea667/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 Result: UNKNOWN: Overapproximated counterexample