./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_09_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_09_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash aa05a18aecd26648795d669443e856f1c6673d34cbf544333932fd03ac8d6997 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:54:57,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:54:57,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:54:57,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:54:57,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:54:57,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:54:57,566 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:54:57,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:54:57,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:54:57,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:54:57,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:54:57,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:54:57,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:54:57,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:54:57,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:54:57,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:54:57,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:54:57,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:54:57,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:54:57,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:54:57,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:54:57,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:54:57,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:54:57,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:54:57,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:54:57,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:54:57,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:54:57,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:54:57,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:54:57,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:54:57,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:54:57,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:54:57,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:54:57,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:54:57,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:54:57,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:54:57,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:54:57,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:54:57,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:54:57,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:54:57,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:54:57,616 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 17:54:57,642 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:54:57,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:54:57,643 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:54:57,643 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:54:57,644 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:54:57,644 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:54:57,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:54:57,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:54:57,645 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:54:57,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:54:57,646 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:54:57,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:54:57,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:54:57,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:54:57,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:54:57,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:54:57,647 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:54:57,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:54:57,648 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:54:57,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:54:57,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:54:57,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:54:57,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:54:57,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:54:57,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:54:57,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:54:57,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:54:57,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:54:57,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:54:57,651 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:54:57,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:54:57,668 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:54:57,668 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:54:57,668 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_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa05a18aecd26648795d669443e856f1c6673d34cbf544333932fd03ac8d6997 [2022-11-25 17:54:57,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:54:57,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:54:57,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:54:57,927 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:54:57,927 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:54:57,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_09_bad.i [2022-11-25 17:55:00,989 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:55:01,337 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:55:01,337 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_09_bad.i [2022-11-25 17:55:01,380 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/data/19f0fb4ab/575e69d2671b49df8435fdfa4ada10da/FLAG8b343f33f [2022-11-25 17:55:01,401 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/data/19f0fb4ab/575e69d2671b49df8435fdfa4ada10da [2022-11-25 17:55:01,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:55:01,409 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:55:01,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:55:01,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:55:01,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:55:01,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:55:01" (1/1) ... [2022-11-25 17:55:01,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6902f9dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:01, skipping insertion in model container [2022-11-25 17:55:01,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:55:01" (1/1) ... [2022-11-25 17:55:01,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:55:01,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:55:01,827 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:55:02,298 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:55:02,309 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:55:02,313 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:55:02,324 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:55:02,325 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:55:02,352 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 17:55:02,363 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:55:02,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:55:02,382 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:55:02,415 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:55:02,490 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:55:02,495 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:55:02,497 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:55:02,507 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:55:02,510 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:55:02,515 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 17:55:02,523 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:55:02,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:55:02,685 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:55:02,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:02 WrapperNode [2022-11-25 17:55:02,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:55:02,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:55:02,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:55:02,688 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:55:02,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:02" (1/1) ... [2022-11-25 17:55:02,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:02" (1/1) ... [2022-11-25 17:55:02,772 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2022-11-25 17:55:02,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:55:02,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:55:02,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:55:02,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:55:02,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:02" (1/1) ... [2022-11-25 17:55:02,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:02" (1/1) ... [2022-11-25 17:55:02,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:02" (1/1) ... [2022-11-25 17:55:02,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:02" (1/1) ... [2022-11-25 17:55:02,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:02" (1/1) ... [2022-11-25 17:55:02,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:02" (1/1) ... [2022-11-25 17:55:02,830 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:02" (1/1) ... [2022-11-25 17:55:02,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:02" (1/1) ... [2022-11-25 17:55:02,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:55:02,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:55:02,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:55:02,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:55:02,835 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:02" (1/1) ... [2022-11-25 17:55:02,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:55:02,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:55:02,875 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:55:02,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:55:02,913 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 17:55:02,913 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 17:55:02,913 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 17:55:02,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:55:02,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 17:55:02,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:55:02,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:55:02,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:55:02,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:55:02,914 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 17:55:02,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:55:03,123 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:55:03,125 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:55:03,331 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:55:03,337 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:55:03,338 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:55:03,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:55:03 BoogieIcfgContainer [2022-11-25 17:55:03,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:55:03,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:55:03,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:55:03,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:55:03,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:55:01" (1/3) ... [2022-11-25 17:55:03,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f6e2d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:55:03, skipping insertion in model container [2022-11-25 17:55:03,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:02" (2/3) ... [2022-11-25 17:55:03,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f6e2d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:55:03, skipping insertion in model container [2022-11-25 17:55:03,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:55:03" (3/3) ... [2022-11-25 17:55:03,356 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_09_bad.i [2022-11-25 17:55:03,379 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:55:03,380 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:55:03,428 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:55:03,434 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;@37b9fc54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:55:03,434 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 17:55:03,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 17:55:03,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 17:55:03,446 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:03,447 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:55:03,447 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:55:03,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:03,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1426013167, now seen corresponding path program 1 times [2022-11-25 17:55:03,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:55:03,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764536434] [2022-11-25 17:55:03,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:03,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:55:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:55:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:03,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:55:03,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:55:03,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764536434] [2022-11-25 17:55:03,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764536434] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:03,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:03,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:55:03,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506965765] [2022-11-25 17:55:03,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:03,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:55:03,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:55:03,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:55:03,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:55:03,955 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:55:03,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:03,982 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2022-11-25 17:55:03,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:55:03,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-25 17:55:03,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:04,002 INFO L225 Difference]: With dead ends: 42 [2022-11-25 17:55:04,002 INFO L226 Difference]: Without dead ends: 18 [2022-11-25 17:55:04,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:55:04,009 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:04,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 27 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:55:04,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-25 17:55:04,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-25 17:55:04,047 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) [2022-11-25 17:55:04,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-11-25 17:55:04,049 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2022-11-25 17:55:04,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:04,051 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-11-25 17:55:04,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:55:04,051 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-11-25 17:55:04,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 17:55:04,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:04,052 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:55:04,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:55:04,053 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:55:04,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:04,054 INFO L85 PathProgramCache]: Analyzing trace with hash -600807242, now seen corresponding path program 1 times [2022-11-25 17:55:04,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:55:04,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250591386] [2022-11-25 17:55:04,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:04,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:55:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:04,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:55:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:04,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:55:04,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:55:04,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250591386] [2022-11-25 17:55:04,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250591386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:04,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:04,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:55:04,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894329137] [2022-11-25 17:55:04,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:04,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:55:04,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:55:04,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:55:04,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:55:04,201 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) [2022-11-25 17:55:04,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:04,212 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-11-25 17:55:04,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:55:04,213 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 [2022-11-25 17:55:04,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:04,214 INFO L225 Difference]: With dead ends: 18 [2022-11-25 17:55:04,214 INFO L226 Difference]: Without dead ends: 17 [2022-11-25 17:55:04,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:55:04,216 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:04,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 31 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:55:04,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-25 17:55:04,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-25 17:55:04,221 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) [2022-11-25 17:55:04,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-25 17:55:04,222 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 14 [2022-11-25 17:55:04,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:04,222 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-25 17:55:04,223 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) [2022-11-25 17:55:04,223 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-25 17:55:04,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 17:55:04,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:04,224 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:55:04,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:55:04,224 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:55:04,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:04,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1445155252, now seen corresponding path program 1 times [2022-11-25 17:55:04,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:55:04,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721038493] [2022-11-25 17:55:04,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:04,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:55:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:55:04,253 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:55:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:55:04,288 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:55:04,289 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:55:04,290 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 17:55:04,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 17:55:04,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:55:04,296 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 17:55:04,300 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:55:04,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:55:04 BoogieIcfgContainer [2022-11-25 17:55:04,328 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:55:04,328 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:55:04,329 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:55:04,329 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:55:04,330 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:55:03" (3/4) ... [2022-11-25 17:55:04,337 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:55:04,337 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:55:04,338 INFO L158 Benchmark]: Toolchain (without parser) took 2928.97ms. Allocated memory is still 159.4MB. Free memory was 129.7MB in the beginning and 94.8MB in the end (delta: 34.9MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2022-11-25 17:55:04,338 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 119.5MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:55:04,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1273.38ms. Allocated memory is still 159.4MB. Free memory was 129.5MB in the beginning and 116.3MB in the end (delta: 13.2MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2022-11-25 17:55:04,341 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.07ms. Allocated memory is still 159.4MB. Free memory was 116.3MB in the beginning and 113.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:55:04,344 INFO L158 Benchmark]: Boogie Preprocessor took 59.28ms. Allocated memory is still 159.4MB. Free memory was 113.1MB in the beginning and 112.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:55:04,345 INFO L158 Benchmark]: RCFGBuilder took 508.45ms. Allocated memory is still 159.4MB. Free memory was 112.1MB in the beginning and 98.4MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 17:55:04,348 INFO L158 Benchmark]: TraceAbstraction took 983.36ms. Allocated memory is still 159.4MB. Free memory was 98.4MB in the beginning and 94.8MB in the end (delta: 3.6MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2022-11-25 17:55:04,348 INFO L158 Benchmark]: Witness Printer took 8.90ms. Allocated memory is still 159.4MB. Free memory is still 94.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:55:04,351 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 119.5MB. Free memory is still 88.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1273.38ms. Allocated memory is still 159.4MB. Free memory was 129.5MB in the beginning and 116.3MB in the end (delta: 13.2MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.07ms. Allocated memory is still 159.4MB. Free memory was 116.3MB in the beginning and 113.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.28ms. Allocated memory is still 159.4MB. Free memory was 113.1MB in the beginning and 112.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 508.45ms. Allocated memory is still 159.4MB. Free memory was 112.1MB in the beginning and 98.4MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 983.36ms. Allocated memory is still 159.4MB. Free memory was 98.4MB in the beginning and 94.8MB in the end (delta: 3.6MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. * Witness Printer took 8.90ms. Allocated memory is still 159.4MB. Free memory is still 94.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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] [L1578] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1578] RET printLine("Calling bad()...") VAL [\old(argc)=1073741829, argc=1073741829, argv={1073741826:1073741831}, argv={1073741826:1073741831}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE190_Integer_Overflow__int_fgets_multiply_09_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE \read(GLOBAL_CONST_TRUE) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE \read(GLOBAL_CONST_TRUE) VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] COND TRUE data > 0 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1570]: 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, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 44 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 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 [2022-11-25 17:55:04,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_09_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash aa05a18aecd26648795d669443e856f1c6673d34cbf544333932fd03ac8d6997 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:55:06,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:55:06,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:55:06,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:55:06,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:55:06,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:55:06,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:55:06,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:55:06,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:55:06,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:55:07,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:55:07,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:55:07,003 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:55:07,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:55:07,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:55:07,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:55:07,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:55:07,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:55:07,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:55:07,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:55:07,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:55:07,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:55:07,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:55:07,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:55:07,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:55:07,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:55:07,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:55:07,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:55:07,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:55:07,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:55:07,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:55:07,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:55:07,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:55:07,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:55:07,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:55:07,073 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:55:07,074 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:55:07,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:55:07,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:55:07,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:55:07,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:55:07,081 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-25 17:55:07,121 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:55:07,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:55:07,123 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:55:07,123 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:55:07,124 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:55:07,125 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:55:07,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:55:07,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:55:07,126 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:55:07,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:55:07,127 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:55:07,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:55:07,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:55:07,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:55:07,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:55:07,129 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:55:07,129 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:55:07,129 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:55:07,130 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:55:07,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:55:07,130 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:55:07,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:55:07,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:55:07,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:55:07,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:55:07,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:55:07,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:55:07,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:55:07,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:55:07,133 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:55:07,133 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:55:07,133 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:55:07,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:55:07,134 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:55:07,134 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:55:07,134 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:55:07,135 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_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa05a18aecd26648795d669443e856f1c6673d34cbf544333932fd03ac8d6997 [2022-11-25 17:55:07,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:55:07,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:55:07,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:55:07,588 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:55:07,590 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:55:07,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_09_bad.i [2022-11-25 17:55:10,851 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:55:11,253 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:55:11,257 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_09_bad.i [2022-11-25 17:55:11,285 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/data/744efaa3d/1faaac0e34c74c8b866ebdb2c1d8482d/FLAG3256556e4 [2022-11-25 17:55:11,312 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/data/744efaa3d/1faaac0e34c74c8b866ebdb2c1d8482d [2022-11-25 17:55:11,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:55:11,316 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:55:11,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:55:11,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:55:11,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:55:11,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:55:11" (1/1) ... [2022-11-25 17:55:11,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c4d3959 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:11, skipping insertion in model container [2022-11-25 17:55:11,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:55:11" (1/1) ... [2022-11-25 17:55:11,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:55:11,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:55:11,791 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:55:12,275 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:55:12,281 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:55:12,282 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:55:12,285 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:55:12,285 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:55:12,307 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 17:55:12,312 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:55:12,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:55:12,339 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:55:12,376 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:55:12,458 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:55:12,470 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:55:12,472 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:55:12,475 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:55:12,476 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:55:12,487 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 17:55:12,490 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:55:12,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:55:12,656 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:55:12,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:12 WrapperNode [2022-11-25 17:55:12,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:55:12,658 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:55:12,658 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:55:12,658 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:55:12,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:12" (1/1) ... [2022-11-25 17:55:12,715 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:12" (1/1) ... [2022-11-25 17:55:12,737 INFO L138 Inliner]: procedures = 505, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2022-11-25 17:55:12,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:55:12,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:55:12,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:55:12,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:55:12,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:12" (1/1) ... [2022-11-25 17:55:12,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:12" (1/1) ... [2022-11-25 17:55:12,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:12" (1/1) ... [2022-11-25 17:55:12,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:12" (1/1) ... [2022-11-25 17:55:12,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:12" (1/1) ... [2022-11-25 17:55:12,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:12" (1/1) ... [2022-11-25 17:55:12,783 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:12" (1/1) ... [2022-11-25 17:55:12,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:12" (1/1) ... [2022-11-25 17:55:12,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:55:12,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:55:12,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:55:12,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:55:12,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:12" (1/1) ... [2022-11-25 17:55:12,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:55:12,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:55:12,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:55:12,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:55:12,878 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 17:55:12,878 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 17:55:12,879 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 17:55:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:55:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 17:55:12,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:55:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:55:12,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:55:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:55:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 17:55:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-25 17:55:13,060 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:55:13,062 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:55:13,305 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:55:13,311 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:55:13,311 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:55:13,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:55:13 BoogieIcfgContainer [2022-11-25 17:55:13,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:55:13,315 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:55:13,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:55:13,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:55:13,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:55:11" (1/3) ... [2022-11-25 17:55:13,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74483cde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:55:13, skipping insertion in model container [2022-11-25 17:55:13,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:55:12" (2/3) ... [2022-11-25 17:55:13,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74483cde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:55:13, skipping insertion in model container [2022-11-25 17:55:13,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:55:13" (3/3) ... [2022-11-25 17:55:13,321 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_09_bad.i [2022-11-25 17:55:13,345 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:55:13,345 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:55:13,405 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:55:13,412 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;@574c57c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:55:13,413 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 17:55:13,418 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 17:55:13,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 17:55:13,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:13,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:55:13,430 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:55:13,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:13,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1426013167, now seen corresponding path program 1 times [2022-11-25 17:55:13,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:55:13,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [628073656] [2022-11-25 17:55:13,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:13,455 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:55:13,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:55:13,462 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:55:13,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 17:55:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:13,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:55:13,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:55:13,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:55:13,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:55:13,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:55:13,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [628073656] [2022-11-25 17:55:13,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [628073656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:13,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:13,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:55:13,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937420140] [2022-11-25 17:55:13,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:13,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:55:13,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:55:13,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:55:13,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:55:13,795 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:55:13,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:13,835 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2022-11-25 17:55:13,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:55:13,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-25 17:55:13,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:13,846 INFO L225 Difference]: With dead ends: 42 [2022-11-25 17:55:13,846 INFO L226 Difference]: Without dead ends: 18 [2022-11-25 17:55:13,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:55:13,855 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:13,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 27 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:55:13,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-25 17:55:13,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-25 17:55:13,895 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) [2022-11-25 17:55:13,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-11-25 17:55:13,899 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2022-11-25 17:55:13,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:13,900 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-11-25 17:55:13,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:55:13,902 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-11-25 17:55:13,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 17:55:13,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:13,904 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:55:13,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:55:14,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:55:14,119 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:55:14,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:14,121 INFO L85 PathProgramCache]: Analyzing trace with hash -600807242, now seen corresponding path program 1 times [2022-11-25 17:55:14,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:55:14,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1138041495] [2022-11-25 17:55:14,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:14,124 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:55:14,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:55:14,125 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:55:14,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 17:55:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:55:14,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:55:14,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:55:14,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:55:14,250 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:55:14,250 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:55:14,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1138041495] [2022-11-25 17:55:14,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1138041495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:55:14,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:55:14,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:55:14,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701799311] [2022-11-25 17:55:14,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:55:14,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:55:14,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:55:14,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:55:14,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:55:14,254 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) [2022-11-25 17:55:14,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:55:14,267 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-11-25 17:55:14,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:55:14,268 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 [2022-11-25 17:55:14,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:55:14,268 INFO L225 Difference]: With dead ends: 18 [2022-11-25 17:55:14,269 INFO L226 Difference]: Without dead ends: 17 [2022-11-25 17:55:14,269 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 [2022-11-25 17:55:14,270 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:55:14,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 31 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:55:14,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-25 17:55:14,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-25 17:55:14,278 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) [2022-11-25 17:55:14,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-25 17:55:14,279 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 14 [2022-11-25 17:55:14,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:55:14,280 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-25 17:55:14,280 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) [2022-11-25 17:55:14,280 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-25 17:55:14,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 17:55:14,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:55:14,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:55:14,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:55:14,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:55:14,497 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:55:14,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:55:14,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1445155252, now seen corresponding path program 1 times [2022-11-25 17:55:14,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:55:14,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1275668965] [2022-11-25 17:55:14,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:55:14,499 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:55:14,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:55:14,500 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:55:14,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 17:55:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:55:14,664 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:55:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:55:14,745 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 17:55:14,745 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:55:14,749 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 17:55:14,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 17:55:14,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:55:14,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:55:14,956 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 17:55:14,960 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:55:15,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:55:15 BoogieIcfgContainer [2022-11-25 17:55:15,012 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:55:15,013 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:55:15,013 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:55:15,013 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:55:15,014 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:55:13" (3/4) ... [2022-11-25 17:55:15,017 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:55:15,017 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:55:15,018 INFO L158 Benchmark]: Toolchain (without parser) took 3701.92ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 50.1MB in the beginning and 61.2MB in the end (delta: -11.1MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-11-25 17:55:15,018 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 73.4MB. Free memory was 51.1MB in the beginning and 50.9MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:55:15,019 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1337.79ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 49.8MB in the beginning and 41.8MB in the end (delta: 8.0MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2022-11-25 17:55:15,019 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.40ms. Allocated memory is still 90.2MB. Free memory was 41.8MB in the beginning and 39.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:55:15,020 INFO L158 Benchmark]: Boogie Preprocessor took 51.12ms. Allocated memory is still 90.2MB. Free memory was 38.6MB in the beginning and 63.7MB in the end (delta: -25.1MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2022-11-25 17:55:15,020 INFO L158 Benchmark]: RCFGBuilder took 522.76ms. Allocated memory is still 90.2MB. Free memory was 63.7MB in the beginning and 49.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 17:55:15,021 INFO L158 Benchmark]: TraceAbstraction took 1697.52ms. Allocated memory is still 90.2MB. Free memory was 49.0MB in the beginning and 61.2MB in the end (delta: -12.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 17:55:15,021 INFO L158 Benchmark]: Witness Printer took 4.10ms. Allocated memory is still 90.2MB. Free memory is still 61.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:55:15,023 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 73.4MB. Free memory was 51.1MB in the beginning and 50.9MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1337.79ms. Allocated memory was 73.4MB in the beginning and 90.2MB in the end (delta: 16.8MB). Free memory was 49.8MB in the beginning and 41.8MB in the end (delta: 8.0MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.40ms. Allocated memory is still 90.2MB. Free memory was 41.8MB in the beginning and 39.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.12ms. Allocated memory is still 90.2MB. Free memory was 38.6MB in the beginning and 63.7MB in the end (delta: -25.1MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * RCFGBuilder took 522.76ms. Allocated memory is still 90.2MB. Free memory was 63.7MB in the beginning and 49.4MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1697.52ms. Allocated memory is still 90.2MB. Free memory was 49.0MB in the beginning and 61.2MB in the end (delta: -12.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 4.10ms. Allocated memory is still 90.2MB. Free memory is still 61.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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] [L1578] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1578] 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] [L1579] CALL CWE190_Integer_Overflow__int_fgets_multiply_09_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE \read(GLOBAL_CONST_TRUE) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE \read(GLOBAL_CONST_TRUE) VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] COND TRUE data > 0 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1570]: 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, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 44 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 0 NumberOfNonLiveVariables, 117 ConjunctsInSsa, 4 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 [2022-11-25 17:55:15,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9eeded66-3e7d-4e52-9bc3-08ddc67de080/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample