./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_15_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_15_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8 --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 a3201307307e47fa08ad351bb3671e2a16c2d02ed34e995988ac10cf26b5ec0f --- 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-2329fc7 [2022-12-13 18:49:35,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:49:35,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:49:35,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:49:35,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:49:35,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:49:35,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:49:35,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:49:35,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:49:35,564 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:49:35,565 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:49:35,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:49:35,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:49:35,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:49:35,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:49:35,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:49:35,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:49:35,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:49:35,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:49:35,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:49:35,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:49:35,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:49:35,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:49:35,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:49:35,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:49:35,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:49:35,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:49:35,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:49:35,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:49:35,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:49:35,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:49:35,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:49:35,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:49:35,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:49:35,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:49:35,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:49:35,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:49:35,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:49:35,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:49:35,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:49:35,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:49:35,584 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 18:49:35,598 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:49:35,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:49:35,598 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:49:35,599 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:49:35,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:49:35,599 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:49:35,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:49:35,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:49:35,600 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:49:35,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:49:35,600 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:49:35,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:49:35,606 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:49:35,606 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:49:35,606 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:49:35,606 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:49:35,607 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 18:49:35,607 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:49:35,607 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:49:35,607 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:49:35,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:49:35,608 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:49:35,608 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:49:35,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:49:35,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:49:35,608 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:49:35,609 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:49:35,609 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:49:35,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:49:35,609 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:49:35,609 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:49:35,609 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:49:35,610 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:49:35,610 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:49:35,610 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_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3201307307e47fa08ad351bb3671e2a16c2d02ed34e995988ac10cf26b5ec0f [2022-12-13 18:49:35,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:49:35,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:49:35,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:49:35,806 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:49:35,807 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:49:35,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_15_bad.i [2022-12-13 18:49:38,502 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:49:38,779 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:49:38,780 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_15_bad.i [2022-12-13 18:49:38,799 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/data/af6cd44a2/05c7fef20bec431b90a5a5170880fb53/FLAG84c83f64f [2022-12-13 18:49:38,814 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/data/af6cd44a2/05c7fef20bec431b90a5a5170880fb53 [2022-12-13 18:49:38,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:49:38,818 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:49:38,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:49:38,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:49:38,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:49:38,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:49:38" (1/1) ... [2022-12-13 18:49:38,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bbee817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:38, skipping insertion in model container [2022-12-13 18:49:38,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:49:38" (1/1) ... [2022-12-13 18:49:38,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:49:38,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:49:39,134 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:49:39,401 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:49:39,405 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:49:39,406 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:49:39,407 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:49:39,408 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:49:39,423 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 18:49:39,427 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:49:39,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:49:39,436 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:49:39,448 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:49:39,480 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:49:39,481 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:49:39,482 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:49:39,484 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:49:39,484 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:49:39,487 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 18:49:39,489 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:49:39,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:49:39,609 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:49:39,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:39 WrapperNode [2022-12-13 18:49:39,609 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:49:39,610 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:49:39,610 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:49:39,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:49:39,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:39" (1/1) ... [2022-12-13 18:49:39,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:39" (1/1) ... [2022-12-13 18:49:39,653 INFO L138 Inliner]: procedures = 500, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2022-12-13 18:49:39,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:49:39,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:49:39,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:49:39,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:49:39,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:39" (1/1) ... [2022-12-13 18:49:39,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:39" (1/1) ... [2022-12-13 18:49:39,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:39" (1/1) ... [2022-12-13 18:49:39,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:39" (1/1) ... [2022-12-13 18:49:39,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:39" (1/1) ... [2022-12-13 18:49:39,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:39" (1/1) ... [2022-12-13 18:49:39,670 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:39" (1/1) ... [2022-12-13 18:49:39,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:39" (1/1) ... [2022-12-13 18:49:39,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:49:39,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:49:39,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:49:39,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:49:39,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:39" (1/1) ... [2022-12-13 18:49:39,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:49:39,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:49:39,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:49:39,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:49:39,725 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 18:49:39,726 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 18:49:39,726 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 18:49:39,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:49:39,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 18:49:39,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:49:39,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:49:39,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:49:39,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:49:39,727 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 18:49:39,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:49:39,825 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:49:39,826 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:49:39,914 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:49:39,918 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:49:39,918 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 18:49:39,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:49:39 BoogieIcfgContainer [2022-12-13 18:49:39,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:49:39,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:49:39,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:49:39,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:49:39,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:49:38" (1/3) ... [2022-12-13 18:49:39,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c4afa5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:49:39, skipping insertion in model container [2022-12-13 18:49:39,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:39" (2/3) ... [2022-12-13 18:49:39,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c4afa5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:49:39, skipping insertion in model container [2022-12-13 18:49:39,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:49:39" (3/3) ... [2022-12-13 18:49:39,925 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_15_bad.i [2022-12-13 18:49:39,939 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:49:39,939 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:49:39,970 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:49:39,975 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;@5927bb27, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:49:39,975 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 18:49:39,978 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 21 states have (on average 1.380952380952381) internal successors, (29), 26 states have internal predecessors, (29), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-13 18:49:39,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 18:49:39,983 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:49:39,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:49:39,984 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:49:39,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:49:39,988 INFO L85 PathProgramCache]: Analyzing trace with hash -851769054, now seen corresponding path program 1 times [2022-12-13 18:49:39,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:49:39,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619547272] [2022-12-13 18:49:39,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:49:39,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:49:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:49:40,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:49:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:49:40,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:49:40,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:49:40,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619547272] [2022-12-13 18:49:40,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619547272] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:49:40,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:49:40,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:49:40,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831281940] [2022-12-13 18:49:40,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:49:40,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:49:40,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:49:40,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:49:40,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:49:40,181 INFO L87 Difference]: Start difference. First operand has 30 states, 21 states have (on average 1.380952380952381) internal successors, (29), 26 states have internal predecessors, (29), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 18:49:40,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:49:40,201 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2022-12-13 18:49:40,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:49:40,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-12-13 18:49:40,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:49:40,207 INFO L225 Difference]: With dead ends: 50 [2022-12-13 18:49:40,207 INFO L226 Difference]: Without dead ends: 18 [2022-12-13 18:49:40,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:49:40,211 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 4 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:49:40,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 60 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:49:40,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-13 18:49:40,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-13 18:49:40,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:49:40,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-12-13 18:49:40,235 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 13 [2022-12-13 18:49:40,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:49:40,236 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-12-13 18:49:40,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 18:49:40,236 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-12-13 18:49:40,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 18:49:40,237 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:49:40,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:49:40,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:49:40,238 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:49:40,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:49:40,238 INFO L85 PathProgramCache]: Analyzing trace with hash -933634968, now seen corresponding path program 1 times [2022-12-13 18:49:40,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:49:40,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225434034] [2022-12-13 18:49:40,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:49:40,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:49:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:49:40,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:49:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:49:40,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:49:40,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:49:40,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225434034] [2022-12-13 18:49:40,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225434034] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:49:40,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:49:40,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:49:40,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505579464] [2022-12-13 18:49:40,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:49:40,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:49:40,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:49:40,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:49:40,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:49:40,318 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 18:49:40,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:49:40,325 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-12-13 18:49:40,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:49:40,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-12-13 18:49:40,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:49:40,326 INFO L225 Difference]: With dead ends: 18 [2022-12-13 18:49:40,326 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 18:49:40,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:49:40,327 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 26 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 [2022-12-13 18:49:40,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 26 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:49:40,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 18:49:40,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-13 18:49:40,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:49:40,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-12-13 18:49:40,330 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 14 [2022-12-13 18:49:40,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:49:40,330 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-12-13 18:49:40,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 18:49:40,331 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-12-13 18:49:40,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-13 18:49:40,331 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:49:40,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:49:40,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:49:40,331 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:49:40,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:49:40,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1122087134, now seen corresponding path program 1 times [2022-12-13 18:49:40,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:49:40,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024807393] [2022-12-13 18:49:40,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:49:40,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:49:40,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:49:40,350 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:49:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:49:40,375 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:49:40,375 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 18:49:40,376 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 18:49:40,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 18:49:40,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 18:49:40,380 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 18:49:40,382 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:49:40,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:49:40 BoogieIcfgContainer [2022-12-13 18:49:40,401 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:49:40,402 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:49:40,402 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:49:40,402 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:49:40,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:49:39" (3/4) ... [2022-12-13 18:49:40,405 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 18:49:40,405 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:49:40,405 INFO L158 Benchmark]: Toolchain (without parser) took 1587.38ms. Allocated memory was 121.6MB in the beginning and 151.0MB in the end (delta: 29.4MB). Free memory was 80.1MB in the beginning and 88.9MB in the end (delta: -8.8MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2022-12-13 18:49:40,405 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:49:40,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 790.55ms. Allocated memory was 121.6MB in the beginning and 151.0MB in the end (delta: 29.4MB). Free memory was 79.8MB in the beginning and 89.8MB in the end (delta: -10.0MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. [2022-12-13 18:49:40,406 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.60ms. Allocated memory is still 151.0MB. Free memory was 89.8MB in the beginning and 86.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:49:40,406 INFO L158 Benchmark]: Boogie Preprocessor took 18.16ms. Allocated memory is still 151.0MB. Free memory was 86.8MB in the beginning and 85.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:49:40,407 INFO L158 Benchmark]: RCFGBuilder took 247.06ms. Allocated memory is still 151.0MB. Free memory was 84.7MB in the beginning and 72.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 18:49:40,407 INFO L158 Benchmark]: TraceAbstraction took 480.18ms. Allocated memory is still 151.0MB. Free memory was 70.9MB in the beginning and 88.9MB in the end (delta: -18.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:49:40,407 INFO L158 Benchmark]: Witness Printer took 2.81ms. Allocated memory is still 151.0MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:49:40,409 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 790.55ms. Allocated memory was 121.6MB in the beginning and 151.0MB in the end (delta: 29.4MB). Free memory was 79.8MB in the beginning and 89.8MB in the end (delta: -10.0MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.60ms. Allocated memory is still 151.0MB. Free memory was 89.8MB in the beginning and 86.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.16ms. Allocated memory is still 151.0MB. Free memory was 86.8MB in the beginning and 85.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 247.06ms. Allocated memory is still 151.0MB. Free memory was 84.7MB in the beginning and 72.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 480.18ms. Allocated memory is still 151.0MB. Free memory was 70.9MB in the beginning and 88.9MB in the end (delta: -18.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.81ms. Allocated memory is still 151.0MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1575]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559. 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] [L1588] 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={6:0}] [L1414] COND TRUE line != ((void *)0) [L1588] RET printLine("Calling bad()...") VAL [\old(argc)=2147483652, argc=2147483652, argv={2147483649:2147483653}, argv={2147483649:2147483653}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1589] CALL CWE190_Integer_Overflow__int_fgets_preinc_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1557] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] data = atoi(inputBuffer) [L1556] 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] [L1573] case 7: 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] [L1575] ++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: 1575]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 30 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 86 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 50 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 41 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 18:49:40,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_15_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8 --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 a3201307307e47fa08ad351bb3671e2a16c2d02ed34e995988ac10cf26b5ec0f --- 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-2329fc7 [2022-12-13 18:49:42,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:49:42,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:49:42,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:49:42,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:49:42,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:49:42,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:49:42,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:49:42,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:49:42,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:49:42,130 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:49:42,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:49:42,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:49:42,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:49:42,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:49:42,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:49:42,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:49:42,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:49:42,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:49:42,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:49:42,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:49:42,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:49:42,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:49:42,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:49:42,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:49:42,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:49:42,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:49:42,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:49:42,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:49:42,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:49:42,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:49:42,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:49:42,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:49:42,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:49:42,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:49:42,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:49:42,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:49:42,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:49:42,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:49:42,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:49:42,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:49:42,159 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 18:49:42,182 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:49:42,183 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:49:42,183 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:49:42,183 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:49:42,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:49:42,184 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:49:42,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:49:42,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:49:42,185 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:49:42,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:49:42,185 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:49:42,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:49:42,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:49:42,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:49:42,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:49:42,186 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 18:49:42,187 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 18:49:42,187 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 18:49:42,187 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 18:49:42,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:49:42,187 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:49:42,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:49:42,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:49:42,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:49:42,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:49:42,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:49:42,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:49:42,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:49:42,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:49:42,189 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 18:49:42,189 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 18:49:42,195 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:49:42,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:49:42,195 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:49:42,195 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:49:42,196 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 18:49:42,196 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:49:42,196 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_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3201307307e47fa08ad351bb3671e2a16c2d02ed34e995988ac10cf26b5ec0f [2022-12-13 18:49:42,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:49:42,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:49:42,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:49:42,449 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:49:42,449 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:49:42,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_15_bad.i [2022-12-13 18:49:44,987 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:49:45,220 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:49:45,221 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_15_bad.i [2022-12-13 18:49:45,233 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/data/22335d767/98ae3f6043004e4aa1cd9651b1822750/FLAG29a05f7b3 [2022-12-13 18:49:45,538 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/data/22335d767/98ae3f6043004e4aa1cd9651b1822750 [2022-12-13 18:49:45,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:49:45,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:49:45,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:49:45,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:49:45,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:49:45,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:49:45" (1/1) ... [2022-12-13 18:49:45,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@666929a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:45, skipping insertion in model container [2022-12-13 18:49:45,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:49:45" (1/1) ... [2022-12-13 18:49:45,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:49:45,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:49:45,809 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:49:46,108 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:49:46,112 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:49:46,113 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:49:46,115 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:49:46,115 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:49:46,129 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 18:49:46,134 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:49:46,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:49:46,145 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:49:46,158 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:49:46,192 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:49:46,193 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:49:46,194 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:49:46,195 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:49:46,196 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:49:46,198 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 18:49:46,200 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:49:46,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:49:46,290 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:49:46,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:46 WrapperNode [2022-12-13 18:49:46,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:49:46,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:49:46,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:49:46,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:49:46,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:46" (1/1) ... [2022-12-13 18:49:46,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:46" (1/1) ... [2022-12-13 18:49:46,329 INFO L138 Inliner]: procedures = 505, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2022-12-13 18:49:46,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:49:46,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:49:46,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:49:46,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:49:46,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:46" (1/1) ... [2022-12-13 18:49:46,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:46" (1/1) ... [2022-12-13 18:49:46,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:46" (1/1) ... [2022-12-13 18:49:46,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:46" (1/1) ... [2022-12-13 18:49:46,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:46" (1/1) ... [2022-12-13 18:49:46,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:46" (1/1) ... [2022-12-13 18:49:46,348 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:46" (1/1) ... [2022-12-13 18:49:46,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:46" (1/1) ... [2022-12-13 18:49:46,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:49:46,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:49:46,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:49:46,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:49:46,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:46" (1/1) ... [2022-12-13 18:49:46,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:49:46,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:49:46,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:49:46,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:49:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 18:49:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 18:49:46,404 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 18:49:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:49:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 18:49:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:49:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:49:46,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:49:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:49:46,404 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 18:49:46,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 18:49:46,542 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:49:46,544 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:49:46,673 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:49:46,679 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:49:46,679 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 18:49:46,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:49:46 BoogieIcfgContainer [2022-12-13 18:49:46,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:49:46,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:49:46,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:49:46,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:49:46,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:49:45" (1/3) ... [2022-12-13 18:49:46,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f68c315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:49:46, skipping insertion in model container [2022-12-13 18:49:46,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:49:46" (2/3) ... [2022-12-13 18:49:46,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f68c315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:49:46, skipping insertion in model container [2022-12-13 18:49:46,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:49:46" (3/3) ... [2022-12-13 18:49:46,687 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_15_bad.i [2022-12-13 18:49:46,702 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:49:46,702 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:49:46,738 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:49:46,743 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;@60d145e7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:49:46,743 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 18:49:46,746 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 21 states have (on average 1.380952380952381) internal successors, (29), 26 states have internal predecessors, (29), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-13 18:49:46,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 18:49:46,751 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:49:46,752 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:49:46,752 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:49:46,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:49:46,756 INFO L85 PathProgramCache]: Analyzing trace with hash -851769054, now seen corresponding path program 1 times [2022-12-13 18:49:46,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 18:49:46,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684048852] [2022-12-13 18:49:46,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:49:46,765 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 [2022-12-13 18:49:46,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 18:49:46,766 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 18:49:46,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 18:49:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:49:46,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 18:49:46,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:49:46,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:49:46,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:49:46,877 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 18:49:46,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684048852] [2022-12-13 18:49:46,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684048852] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:49:46,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:49:46,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 18:49:46,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482592417] [2022-12-13 18:49:46,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:49:46,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 18:49:46,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 18:49:46,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 18:49:46,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:49:46,911 INFO L87 Difference]: Start difference. First operand has 30 states, 21 states have (on average 1.380952380952381) internal successors, (29), 26 states have internal predecessors, (29), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 18:49:46,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:49:46,932 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2022-12-13 18:49:46,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 18:49:46,934 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-12-13 18:49:46,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:49:46,939 INFO L225 Difference]: With dead ends: 30 [2022-12-13 18:49:46,939 INFO L226 Difference]: Without dead ends: 19 [2022-12-13 18:49:46,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:49:46,944 INFO L413 NwaCegarLoop]: 38 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, 38 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 [2022-12-13 18:49:46,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:49:46,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-13 18:49:46,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-13 18:49:46,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 16 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 18:49:46,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2022-12-13 18:49:46,969 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 13 [2022-12-13 18:49:46,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:49:46,970 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2022-12-13 18:49:46,970 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 18:49:46,970 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2022-12-13 18:49:46,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 18:49:46,971 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:49:46,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:49:46,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 18:49:47,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 18:49:47,174 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:49:47,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:49:47,176 INFO L85 PathProgramCache]: Analyzing trace with hash -635036828, now seen corresponding path program 1 times [2022-12-13 18:49:47,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 18:49:47,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150732745] [2022-12-13 18:49:47,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:49:47,181 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 [2022-12-13 18:49:47,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 18:49:47,185 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 18:49:47,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 18:49:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:49:47,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 18:49:47,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:49:47,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:49:47,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:49:47,347 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 18:49:47,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150732745] [2022-12-13 18:49:47,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150732745] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:49:47,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:49:47,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:49:47,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658215316] [2022-12-13 18:49:47,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:49:47,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:49:47,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 18:49:47,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:49:47,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:49:47,350 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 18:49:47,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:49:47,362 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-12-13 18:49:47,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:49:47,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-12-13 18:49:47,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:49:47,363 INFO L225 Difference]: With dead ends: 28 [2022-12-13 18:49:47,363 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 18:49:47,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:49:47,365 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 4 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:49:47,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 30 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:49:47,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 18:49:47,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-13 18:49:47,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:49:47,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-12-13 18:49:47,369 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 14 [2022-12-13 18:49:47,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:49:47,369 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-12-13 18:49:47,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 18:49:47,370 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-12-13 18:49:47,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-13 18:49:47,370 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:49:47,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:49:47,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 18:49:47,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 18:49:47,572 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:49:47,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:49:47,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1122087134, now seen corresponding path program 1 times [2022-12-13 18:49:47,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 18:49:47,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103277320] [2022-12-13 18:49:47,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:49:47,579 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 [2022-12-13 18:49:47,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 18:49:47,582 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 18:49:47,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 18:49:47,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:49:47,734 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:49:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:49:47,783 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 18:49:47,783 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 18:49:47,785 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 18:49:47,787 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 18:49:47,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 18:49:47,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 18:49:47,993 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 18:49:48,001 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:49:48,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:49:48 BoogieIcfgContainer [2022-12-13 18:49:48,044 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:49:48,045 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:49:48,045 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:49:48,045 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:49:48,045 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:49:46" (3/4) ... [2022-12-13 18:49:48,047 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 18:49:48,047 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:49:48,048 INFO L158 Benchmark]: Toolchain (without parser) took 2507.61ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 46.0MB in the beginning and 34.0MB in the end (delta: 12.0MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2022-12-13 18:49:48,048 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory is still 35.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:49:48,049 INFO L158 Benchmark]: CACSL2BoogieTranslator took 750.27ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 45.8MB in the beginning and 46.3MB in the end (delta: -536.9kB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2022-12-13 18:49:48,049 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.20ms. Allocated memory is still 86.0MB. Free memory was 46.3MB in the beginning and 43.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:49:48,049 INFO L158 Benchmark]: Boogie Preprocessor took 21.19ms. Allocated memory is still 86.0MB. Free memory was 43.3MB in the beginning and 41.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:49:48,050 INFO L158 Benchmark]: RCFGBuilder took 328.78ms. Allocated memory is still 86.0MB. Free memory was 41.3MB in the beginning and 47.9MB in the end (delta: -6.6MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-12-13 18:49:48,050 INFO L158 Benchmark]: TraceAbstraction took 1361.49ms. Allocated memory is still 86.0MB. Free memory was 47.3MB in the beginning and 34.4MB in the end (delta: 12.9MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2022-12-13 18:49:48,051 INFO L158 Benchmark]: Witness Printer took 2.68ms. Allocated memory is still 86.0MB. Free memory was 34.4MB in the beginning and 34.0MB in the end (delta: 456.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:49:48,053 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory is still 35.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 750.27ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 45.8MB in the beginning and 46.3MB in the end (delta: -536.9kB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.20ms. Allocated memory is still 86.0MB. Free memory was 46.3MB in the beginning and 43.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.19ms. Allocated memory is still 86.0MB. Free memory was 43.3MB in the beginning and 41.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 328.78ms. Allocated memory is still 86.0MB. Free memory was 41.3MB in the beginning and 47.9MB in the end (delta: -6.6MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1361.49ms. Allocated memory is still 86.0MB. Free memory was 47.3MB in the beginning and 34.4MB in the end (delta: 12.9MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * Witness Printer took 2.68ms. Allocated memory is still 86.0MB. Free memory was 34.4MB in the beginning and 34.0MB in the end (delta: 456.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1575]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559. 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] [L1588] 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={6:0}] [L1414] COND TRUE line != ((void *)0) [L1588] 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] [L1589] CALL CWE190_Integer_Overflow__int_fgets_preinc_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1557] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] data = atoi(inputBuffer) [L1556] 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] [L1573] case 7: 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] [L1575] ++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: 1575]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 30 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 68 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 56 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 5, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 18:49:48,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b0f8e35-c401-4898-8f7f-e04d91dedb90/bin/uautomizer-uyxdKDjOR8/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