./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_08_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/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_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/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_6f904be1-5481-439d-84de-cc8459dc7335/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 1ead5f43c29b00715b7b82f92134d46bf2a7b679a2c09833ac98a2dec366ad20 --- 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 16:57:02,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:57:02,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:57:02,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:57:02,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:57:02,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:57:02,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:57:02,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:57:02,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:57:02,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:57:02,349 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:57:02,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:57:02,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:57:02,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:57:02,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:57:02,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:57:02,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:57:02,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:57:02,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:57:02,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:57:02,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:57:02,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:57:02,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:57:02,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:57:02,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:57:02,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:57:02,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:57:02,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:57:02,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:57:02,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:57:02,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:57:02,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:57:02,400 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:57:02,402 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:57:02,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:57:02,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:57:02,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:57:02,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:57:02,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:57:02,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:57:02,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:57:02,409 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 16:57:02,444 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:57:02,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:57:02,445 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:57:02,446 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:57:02,447 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:57:02,447 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:57:02,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:57:02,448 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:57:02,448 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:57:02,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:57:02,450 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:57:02,450 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:57:02,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:57:02,451 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:57:02,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:57:02,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:57:02,452 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 16:57:02,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:57:02,452 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:57:02,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:57:02,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:57:02,453 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:57:02,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:57:02,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:57:02,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:57:02,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:57:02,454 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:57:02,455 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:57:02,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:57:02,455 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:57:02,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:57:02,456 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:57:02,456 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:57:02,457 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_6f904be1-5481-439d-84de-cc8459dc7335/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ead5f43c29b00715b7b82f92134d46bf2a7b679a2c09833ac98a2dec366ad20 [2022-11-25 16:57:02,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:57:02,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:57:02,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:57:02,774 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:57:02,775 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:57:02,776 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_08_bad.i [2022-11-25 16:57:05,771 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:57:06,266 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:57:06,267 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_08_bad.i [2022-11-25 16:57:06,299 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/data/2d542d724/162fe5f9b9ab449abab54e551776d826/FLAG47ce13536 [2022-11-25 16:57:06,329 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/data/2d542d724/162fe5f9b9ab449abab54e551776d826 [2022-11-25 16:57:06,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:57:06,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:57:06,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:57:06,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:57:06,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:57:06,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:57:06" (1/1) ... [2022-11-25 16:57:06,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449741c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:06, skipping insertion in model container [2022-11-25 16:57:06,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:57:06" (1/1) ... [2022-11-25 16:57:06,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:57:06,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:57:06,915 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 16:57:07,454 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:57:07,465 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 16:57:07,469 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 16:57:07,481 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 16:57:07,482 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 16:57:07,527 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 16:57:07,542 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 16:57:07,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:57:07,555 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:57:07,590 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 16:57:07,640 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:57:07,642 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 16:57:07,643 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 16:57:07,646 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 16:57:07,646 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 16:57:07,651 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 16:57:07,654 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 16:57:07,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:57:07,819 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:57:07,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:07 WrapperNode [2022-11-25 16:57:07,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:57:07,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:57:07,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:57:07,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:57:07,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:07" (1/1) ... [2022-11-25 16:57:07,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:07" (1/1) ... [2022-11-25 16:57:07,914 INFO L138 Inliner]: procedures = 502, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2022-11-25 16:57:07,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:57:07,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:57:07,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:57:07,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:57:07,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:07" (1/1) ... [2022-11-25 16:57:07,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:07" (1/1) ... [2022-11-25 16:57:07,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:07" (1/1) ... [2022-11-25 16:57:07,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:07" (1/1) ... [2022-11-25 16:57:07,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:07" (1/1) ... [2022-11-25 16:57:07,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:07" (1/1) ... [2022-11-25 16:57:07,952 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:07" (1/1) ... [2022-11-25 16:57:07,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:07" (1/1) ... [2022-11-25 16:57:07,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:57:07,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:57:07,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:57:07,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:57:07,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:07" (1/1) ... [2022-11-25 16:57:07,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:57:08,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:08,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:57:08,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:57:08,076 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 16:57:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 16:57:08,077 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 16:57:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:57:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 16:57:08,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:57:08,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:57:08,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:57:08,078 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2022-11-25 16:57:08,078 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2022-11-25 16:57:08,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 16:57:08,079 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 16:57:08,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:57:08,258 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:57:08,260 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:57:08,385 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:57:08,391 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:57:08,392 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 16:57:08,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:57:08 BoogieIcfgContainer [2022-11-25 16:57:08,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:57:08,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:57:08,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:57:08,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:57:08,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:57:06" (1/3) ... [2022-11-25 16:57:08,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58636e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:57:08, skipping insertion in model container [2022-11-25 16:57:08,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:07" (2/3) ... [2022-11-25 16:57:08,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58636e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:57:08, skipping insertion in model container [2022-11-25 16:57:08,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:57:08" (3/3) ... [2022-11-25 16:57:08,406 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_08_bad.i [2022-11-25 16:57:08,440 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:57:08,441 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 16:57:08,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:57:08,504 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;@3b0ce0e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:57:08,504 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 16:57:08,509 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 16:57:08,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 16:57:08,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:08,520 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:08,520 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 16:57:08,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:08,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1996056410, now seen corresponding path program 1 times [2022-11-25 16:57:08,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:08,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750512452] [2022-11-25 16:57:08,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:08,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:08,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:08,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:57:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:08,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 16:57:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:09,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 16:57:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:09,090 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 16:57:09,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:09,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750512452] [2022-11-25 16:57:09,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750512452] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:09,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023833305] [2022-11-25 16:57:09,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:09,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:09,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:09,101 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:09,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 16:57:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:09,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 16:57:09,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:09,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:57:09,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:57:09,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023833305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:09,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 16:57:09,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 16:57:09,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695633042] [2022-11-25 16:57:09,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:09,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:57:09,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:09,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:57:09,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:57:09,350 INFO L87 Difference]: Start difference. First operand has 31 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 16:57:09,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:09,402 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2022-11-25 16:57:09,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:57:09,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2022-11-25 16:57:09,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:09,412 INFO L225 Difference]: With dead ends: 45 [2022-11-25 16:57:09,413 INFO L226 Difference]: Without dead ends: 30 [2022-11-25 16:57:09,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:57:09,420 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 10 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:09,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 75 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:57:09,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-25 16:57:09,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2022-11-25 16:57:09,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.2) internal successors, (24), 21 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 16:57:09,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-11-25 16:57:09,463 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 21 [2022-11-25 16:57:09,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:09,465 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-11-25 16:57:09,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 16:57:09,466 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2022-11-25 16:57:09,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 16:57:09,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:09,468 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:09,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:09,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 16:57:09,675 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 16:57:09,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:09,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1748206499, now seen corresponding path program 1 times [2022-11-25 16:57:09,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:09,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501195961] [2022-11-25 16:57:09,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:09,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:09,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:57:09,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:09,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 16:57:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:09,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 16:57:09,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:09,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 16:57:09,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:09,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501195961] [2022-11-25 16:57:09,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501195961] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:57:09,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306236052] [2022-11-25 16:57:09,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:09,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:09,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:09,927 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:57:09,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 16:57:10,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:10,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 16:57:10,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:10,074 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:57:10,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:57:10,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306236052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:10,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 16:57:10,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 16:57:10,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569699876] [2022-11-25 16:57:10,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:10,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:57:10,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:10,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:57:10,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:57:10,079 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 16:57:10,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:10,102 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-11-25 16:57:10,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:57:10,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2022-11-25 16:57:10,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:10,105 INFO L225 Difference]: With dead ends: 31 [2022-11-25 16:57:10,105 INFO L226 Difference]: Without dead ends: 23 [2022-11-25 16:57:10,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:57:10,108 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 3 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:10,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 46 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:57:10,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-25 16:57:10,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-25 16:57:10,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 16:57:10,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2022-11-25 16:57:10,125 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 22 [2022-11-25 16:57:10,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:10,126 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2022-11-25 16:57:10,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 16:57:10,127 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-11-25 16:57:10,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-25 16:57:10,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:10,129 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:10,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-25 16:57:10,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:57:10,335 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 16:57:10,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:10,336 INFO L85 PathProgramCache]: Analyzing trace with hash 268010891, now seen corresponding path program 1 times [2022-11-25 16:57:10,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:10,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778666167] [2022-11-25 16:57:10,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:10,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:10,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:57:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:10,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 16:57:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:10,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 16:57:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:10,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:57:10,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:10,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778666167] [2022-11-25 16:57:10,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778666167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:10,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:10,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:57:10,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662446957] [2022-11-25 16:57:10,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:10,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:57:10,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:10,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:57:10,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:57:10,535 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 16:57:10,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:10,558 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-11-25 16:57:10,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:57:10,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2022-11-25 16:57:10,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:10,562 INFO L225 Difference]: With dead ends: 23 [2022-11-25 16:57:10,562 INFO L226 Difference]: Without dead ends: 22 [2022-11-25 16:57:10,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 16:57:10,565 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 4 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:10,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 33 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:57:10,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-25 16:57:10,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-25 16:57:10,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 16:57:10,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-11-25 16:57:10,575 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 23 [2022-11-25 16:57:10,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:10,576 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-11-25 16:57:10,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 16:57:10,576 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-11-25 16:57:10,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 16:57:10,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:10,577 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:10,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 16:57:10,578 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 16:57:10,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:10,578 INFO L85 PathProgramCache]: Analyzing trace with hash -281596904, now seen corresponding path program 1 times [2022-11-25 16:57:10,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:10,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125046780] [2022-11-25 16:57:10,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:10,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:57:10,623 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 16:57:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:57:10,677 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 16:57:10,678 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 16:57:10,680 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 16:57:10,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 16:57:10,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 16:57:10,694 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 16:57:10,702 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:57:10,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:57:10 BoogieIcfgContainer [2022-11-25 16:57:10,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:57:10,765 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:57:10,765 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:57:10,766 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:57:10,769 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:57:08" (3/4) ... [2022-11-25 16:57:10,773 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 16:57:10,773 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:57:10,779 INFO L158 Benchmark]: Toolchain (without parser) took 4443.22ms. Allocated memory is still 178.3MB. Free memory was 141.6MB in the beginning and 109.6MB in the end (delta: 32.0MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. [2022-11-25 16:57:10,780 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:57:10,780 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1479.51ms. Allocated memory is still 178.3MB. Free memory was 141.6MB in the beginning and 142.9MB in the end (delta: -1.2MB). Peak memory consumption was 72.0MB. Max. memory is 16.1GB. [2022-11-25 16:57:10,781 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.14ms. Allocated memory is still 178.3MB. Free memory was 142.9MB in the beginning and 139.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 16:57:10,781 INFO L158 Benchmark]: Boogie Preprocessor took 54.23ms. Allocated memory is still 178.3MB. Free memory was 139.6MB in the beginning and 138.7MB in the end (delta: 924.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:57:10,782 INFO L158 Benchmark]: RCFGBuilder took 425.03ms. Allocated memory is still 178.3MB. Free memory was 138.4MB in the beginning and 124.9MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 16:57:10,782 INFO L158 Benchmark]: TraceAbstraction took 2366.60ms. Allocated memory is still 178.3MB. Free memory was 124.0MB in the beginning and 110.6MB in the end (delta: 13.4MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2022-11-25 16:57:10,783 INFO L158 Benchmark]: Witness Printer took 13.48ms. Allocated memory is still 178.3MB. Free memory was 110.6MB in the beginning and 109.6MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:57:10,785 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 85.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1479.51ms. Allocated memory is still 178.3MB. Free memory was 141.6MB in the beginning and 142.9MB in the end (delta: -1.2MB). Peak memory consumption was 72.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.14ms. Allocated memory is still 178.3MB. Free memory was 142.9MB in the beginning and 139.6MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.23ms. Allocated memory is still 178.3MB. Free memory was 139.6MB in the beginning and 138.7MB in the end (delta: 924.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 425.03ms. Allocated memory is still 178.3MB. Free memory was 138.4MB in the beginning and 124.9MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2366.60ms. Allocated memory is still 178.3MB. Free memory was 124.0MB in the beginning and 110.6MB in the end (delta: 13.4MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Witness Printer took 13.48ms. Allocated memory is still 178.3MB. Free memory was 110.6MB in the beginning and 109.6MB in the end (delta: 1.0MB). 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: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1566. 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] [L1586] 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) [L1586] RET printLine("Calling bad()...") VAL [\old(argc)=2147483652, argc=2147483652, argv={2147483648:2147483653}, argv={2147483648:2147483653}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1587] CALL CWE190_Integer_Overflow__int_fgets_preinc_08_bad() [L1558] int data; [L1559] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] RET staticReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticReturnsTrue()=1] [L1560] COND TRUE staticReturnsTrue() [L1563] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1566] data = atoi(inputBuffer) [L1563] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] RET staticReturnsTrue() VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticReturnsTrue()=1] [L1574] COND TRUE staticReturnsTrue() [L1577] ++data VAL [data=2147483647, 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: 1577]: 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 3 procedures, 31 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 154 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 99 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 SizeOfPredicates, 0 NumberOfNonLiveVariables, 209 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 11/15 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 16:57:10,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/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_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/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_6f904be1-5481-439d-84de-cc8459dc7335/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 1ead5f43c29b00715b7b82f92134d46bf2a7b679a2c09833ac98a2dec366ad20 --- 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 16:57:13,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:57:13,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:57:13,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:57:13,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:57:13,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:57:13,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:57:13,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:57:13,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:57:13,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:57:13,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:57:13,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:57:13,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:57:13,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:57:13,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:57:13,323 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:57:13,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:57:13,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:57:13,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:57:13,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:57:13,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:57:13,331 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:57:13,332 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:57:13,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:57:13,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:57:13,337 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:57:13,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:57:13,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:57:13,339 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:57:13,340 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:57:13,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:57:13,341 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:57:13,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:57:13,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:57:13,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:57:13,363 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:57:13,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:57:13,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:57:13,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:57:13,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:57:13,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:57:13,368 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-25 16:57:13,418 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:57:13,421 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:57:13,421 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:57:13,422 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:57:13,423 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:57:13,423 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:57:13,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:57:13,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:57:13,425 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:57:13,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:57:13,426 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:57:13,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:57:13,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:57:13,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:57:13,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:57:13,428 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 16:57:13,428 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 16:57:13,428 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 16:57:13,428 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 16:57:13,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:57:13,429 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:57:13,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:57:13,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:57:13,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:57:13,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:57:13,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:57:13,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:57:13,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:57:13,431 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:57:13,431 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 16:57:13,431 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 16:57:13,431 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:57:13,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:57:13,432 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:57:13,432 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:57:13,432 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 16:57:13,433 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_6f904be1-5481-439d-84de-cc8459dc7335/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ead5f43c29b00715b7b82f92134d46bf2a7b679a2c09833ac98a2dec366ad20 [2022-11-25 16:57:13,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:57:13,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:57:13,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:57:13,826 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:57:13,826 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:57:13,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_08_bad.i [2022-11-25 16:57:17,041 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:57:17,477 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:57:17,477 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_08_bad.i [2022-11-25 16:57:17,500 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/data/6c1156002/18cc76372361424fb399e656adfca9bf/FLAG047275ec7 [2022-11-25 16:57:17,528 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/data/6c1156002/18cc76372361424fb399e656adfca9bf [2022-11-25 16:57:17,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:57:17,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:57:17,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:57:17,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:57:17,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:57:17,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:57:17" (1/1) ... [2022-11-25 16:57:17,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a78d07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:17, skipping insertion in model container [2022-11-25 16:57:17,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:57:17" (1/1) ... [2022-11-25 16:57:17,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:57:17,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:57:18,030 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 16:57:18,914 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:57:18,920 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 16:57:18,922 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 16:57:18,925 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 16:57:18,926 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 16:57:18,957 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 16:57:18,964 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 16:57:18,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:57:18,983 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:57:19,005 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 16:57:19,053 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:57:19,055 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 16:57:19,056 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 16:57:19,059 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 16:57:19,060 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 16:57:19,064 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 16:57:19,067 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 16:57:19,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:57:19,224 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:57:19,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:19 WrapperNode [2022-11-25 16:57:19,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:57:19,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:57:19,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:57:19,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:57:19,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:19" (1/1) ... [2022-11-25 16:57:19,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:19" (1/1) ... [2022-11-25 16:57:19,288 INFO L138 Inliner]: procedures = 507, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2022-11-25 16:57:19,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:57:19,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:57:19,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:57:19,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:57:19,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:19" (1/1) ... [2022-11-25 16:57:19,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:19" (1/1) ... [2022-11-25 16:57:19,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:19" (1/1) ... [2022-11-25 16:57:19,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:19" (1/1) ... [2022-11-25 16:57:19,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:19" (1/1) ... [2022-11-25 16:57:19,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:19" (1/1) ... [2022-11-25 16:57:19,320 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:19" (1/1) ... [2022-11-25 16:57:19,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:19" (1/1) ... [2022-11-25 16:57:19,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:57:19,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:57:19,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:57:19,327 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:57:19,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:19" (1/1) ... [2022-11-25 16:57:19,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:57:19,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:57:19,365 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:57:19,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:57:19,435 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 16:57:19,435 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 16:57:19,435 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 16:57:19,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:57:19,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 16:57:19,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:57:19,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:57:19,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:57:19,436 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2022-11-25 16:57:19,436 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2022-11-25 16:57:19,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 16:57:19,436 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 16:57:19,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-25 16:57:19,595 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:57:19,598 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:57:19,823 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:57:19,835 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:57:19,836 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 16:57:19,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:57:19 BoogieIcfgContainer [2022-11-25 16:57:19,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:57:19,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:57:19,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:57:19,845 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:57:19,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:57:17" (1/3) ... [2022-11-25 16:57:19,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d448ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:57:19, skipping insertion in model container [2022-11-25 16:57:19,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:57:19" (2/3) ... [2022-11-25 16:57:19,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d448ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:57:19, skipping insertion in model container [2022-11-25 16:57:19,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:57:19" (3/3) ... [2022-11-25 16:57:19,850 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_08_bad.i [2022-11-25 16:57:19,871 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:57:19,871 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 16:57:19,943 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:57:19,950 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;@33db4d19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:57:19,951 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 16:57:19,955 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 22 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 16:57:19,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 16:57:19,968 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:19,969 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:19,970 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 16:57:19,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:19,977 INFO L85 PathProgramCache]: Analyzing trace with hash -918563445, now seen corresponding path program 1 times [2022-11-25 16:57:19,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:57:19,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357766788] [2022-11-25 16:57:19,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:19,997 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 16:57:19,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:57:20,006 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/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 16:57:20,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/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 16:57:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:20,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 16:57:20,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:20,249 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:57:20,250 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:57:20,251 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:57:20,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357766788] [2022-11-25 16:57:20,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357766788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:20,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:20,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 16:57:20,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883310995] [2022-11-25 16:57:20,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:20,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 16:57:20,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:57:20,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 16:57:20,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 16:57:20,303 INFO L87 Difference]: Start difference. First operand has 29 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 22 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 1 states have (on average 11.0) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 16:57:20,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:20,325 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2022-11-25 16:57:20,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 16:57:20,327 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 11.0) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19 [2022-11-25 16:57:20,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:20,335 INFO L225 Difference]: With dead ends: 29 [2022-11-25 16:57:20,336 INFO L226 Difference]: Without dead ends: 21 [2022-11-25 16:57:20,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 16:57:20,343 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:20,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:57:20,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-25 16:57:20,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-25 16:57:20,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 16:57:20,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2022-11-25 16:57:20,382 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 19 [2022-11-25 16:57:20,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:20,384 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2022-11-25 16:57:20,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 11.0) internal successors, (11), 2 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 16:57:20,384 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-11-25 16:57:20,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 16:57:20,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:20,386 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:20,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/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 16:57:20,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/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 16:57:20,599 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 16:57:20,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:20,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1589304342, now seen corresponding path program 1 times [2022-11-25 16:57:20,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:57:20,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608012596] [2022-11-25 16:57:20,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:20,601 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 16:57:20,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:57:20,603 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/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 16:57:20,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/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 16:57:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:20,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 16:57:20,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:57:20,807 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:20,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:57:20,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 16:57:20,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608012596] [2022-11-25 16:57:20,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608012596] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:20,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:20,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:57:20,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032235535] [2022-11-25 16:57:20,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:20,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:57:20,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 16:57:20,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:57:20,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:57:20,812 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 16:57:20,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:20,847 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-11-25 16:57:20,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:57:20,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2022-11-25 16:57:20,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:20,850 INFO L225 Difference]: With dead ends: 29 [2022-11-25 16:57:20,850 INFO L226 Difference]: Without dead ends: 21 [2022-11-25 16:57:20,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:57:20,851 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:20,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:57:20,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-25 16:57:20,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-25 16:57:20,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 16:57:20,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2022-11-25 16:57:20,864 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 20 [2022-11-25 16:57:20,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:20,864 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-11-25 16:57:20,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 16:57:20,865 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-11-25 16:57:20,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 16:57:20,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:20,866 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:57:20,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/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 16:57:21,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/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 16:57:21,079 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 16:57:21,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:21,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1168448859, now seen corresponding path program 1 times [2022-11-25 16:57:21,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 16:57:21,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1634683094] [2022-11-25 16:57:21,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:21,081 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 16:57:21,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 16:57:21,088 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/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 16:57:21,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/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 (4)] Waiting until timeout for monitored process [2022-11-25 16:57:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:57:21,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 16:57:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 16:57:21,330 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 16:57:21,330 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 16:57:21,331 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 16:57:21,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 16:57:21,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/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 (4)] Forceful destruction successful, exit code 0 [2022-11-25 16:57:21,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/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 16:57:21,538 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 16:57:21,542 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:57:21,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:57:21 BoogieIcfgContainer [2022-11-25 16:57:21,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:57:21,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:57:21,586 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:57:21,586 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:57:21,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:57:19" (3/4) ... [2022-11-25 16:57:21,590 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 16:57:21,590 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:57:21,591 INFO L158 Benchmark]: Toolchain (without parser) took 4058.75ms. Allocated memory was 73.4MB in the beginning and 104.9MB in the end (delta: 31.5MB). Free memory was 50.4MB in the beginning and 58.1MB in the end (delta: -7.6MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2022-11-25 16:57:21,591 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 73.4MB. Free memory is still 52.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:57:21,592 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1691.96ms. Allocated memory was 73.4MB in the beginning and 104.9MB in the end (delta: 31.5MB). Free memory was 50.2MB in the beginning and 57.1MB in the end (delta: -6.9MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2022-11-25 16:57:21,592 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.36ms. Allocated memory is still 104.9MB. Free memory was 57.1MB in the beginning and 53.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 16:57:21,593 INFO L158 Benchmark]: Boogie Preprocessor took 36.55ms. Allocated memory is still 104.9MB. Free memory was 53.8MB in the beginning and 51.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:57:21,593 INFO L158 Benchmark]: RCFGBuilder took 511.58ms. Allocated memory is still 104.9MB. Free memory was 51.7MB in the beginning and 67.6MB in the end (delta: -15.9MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-11-25 16:57:21,594 INFO L158 Benchmark]: TraceAbstraction took 1743.21ms. Allocated memory is still 104.9MB. Free memory was 67.0MB in the beginning and 58.7MB in the end (delta: 8.3MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-11-25 16:57:21,594 INFO L158 Benchmark]: Witness Printer took 4.59ms. Allocated memory is still 104.9MB. Free memory was 58.7MB in the beginning and 58.1MB in the end (delta: 632.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:57:21,597 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 73.4MB. Free memory is still 52.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1691.96ms. Allocated memory was 73.4MB in the beginning and 104.9MB in the end (delta: 31.5MB). Free memory was 50.2MB in the beginning and 57.1MB in the end (delta: -6.9MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.36ms. Allocated memory is still 104.9MB. Free memory was 57.1MB in the beginning and 53.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.55ms. Allocated memory is still 104.9MB. Free memory was 53.8MB in the beginning and 51.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 511.58ms. Allocated memory is still 104.9MB. Free memory was 51.7MB in the beginning and 67.6MB in the end (delta: -15.9MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1743.21ms. Allocated memory is still 104.9MB. Free memory was 67.0MB in the beginning and 58.7MB in the end (delta: 8.3MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Witness Printer took 4.59ms. Allocated memory is still 104.9MB. Free memory was 58.7MB in the beginning and 58.1MB in the end (delta: 632.2kB). 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: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1566. 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] [L1586] 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) [L1586] 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] [L1587] CALL CWE190_Integer_Overflow__int_fgets_preinc_08_bad() [L1558] int data; [L1559] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] RET staticReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticReturnsTrue()=1] [L1560] COND TRUE staticReturnsTrue() [L1563] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1566] data = atoi(inputBuffer) [L1563] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] RET staticReturnsTrue() VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticReturnsTrue()=1] [L1574] COND TRUE staticReturnsTrue() [L1577] ++data VAL [data=2147483647, 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: 1577]: 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 3 procedures, 29 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 97 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 57 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 43 SizeOfPredicates, 0 NumberOfNonLiveVariables, 119 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 16:57:21,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f904be1-5481-439d-84de-cc8459dc7335/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