./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_03_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/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_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_03_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/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_12427812-0937-431f-86eb-cb61abb54b95/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 06592c51df9ad6320061ea18b4dabc8bbef9afafc67b1591cc16d5a9b42087a0 --- 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 17:31:03,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:31:03,540 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:31:03,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:31:03,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:31:03,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:31:03,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:31:03,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:31:03,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:31:03,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:31:03,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:31:03,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:31:03,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:31:03,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:31:03,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:31:03,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:31:03,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:31:03,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:31:03,604 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:31:03,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:31:03,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:31:03,620 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:31:03,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:31:03,625 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:31:03,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:31:03,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:31:03,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:31:03,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:31:03,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:31:03,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:31:03,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:31:03,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:31:03,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:31:03,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:31:03,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:31:03,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:31:03,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:31:03,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:31:03,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:31:03,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:31:03,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:31:03,653 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 17:31:03,677 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:31:03,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:31:03,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:31:03,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:31:03,678 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:31:03,679 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:31:03,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:31:03,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:31:03,680 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:31:03,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:31:03,680 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:31:03,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:31:03,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:31:03,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:31:03,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:31:03,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:31:03,682 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:31:03,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:31:03,682 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:31:03,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:31:03,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:31:03,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:31:03,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:31:03,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:31:03,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:31:03,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:31:03,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:31:03,684 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:31:03,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:31:03,684 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:31:03,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:31:03,685 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:31:03,685 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:31:03,685 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_12427812-0937-431f-86eb-cb61abb54b95/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06592c51df9ad6320061ea18b4dabc8bbef9afafc67b1591cc16d5a9b42087a0 [2022-11-25 17:31:03,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:31:03,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:31:03,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:31:03,979 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:31:03,979 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:31:03,980 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_03_bad.i [2022-11-25 17:31:07,217 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:31:07,632 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:31:07,635 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_03_bad.i [2022-11-25 17:31:07,664 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/data/f30985cce/81754246369a4f498ff18b6f3fac3e8e/FLAGb359f8a1a [2022-11-25 17:31:07,679 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/data/f30985cce/81754246369a4f498ff18b6f3fac3e8e [2022-11-25 17:31:07,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:31:07,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:31:07,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:31:07,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:31:07,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:31:07,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:31:07" (1/1) ... [2022-11-25 17:31:07,691 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14121aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:07, skipping insertion in model container [2022-11-25 17:31:07,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:31:07" (1/1) ... [2022-11-25 17:31:07,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:31:07,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:31:08,229 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:31:08,955 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:31:08,961 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:31:08,963 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:31:08,966 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:31:08,967 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:31:09,542 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 17:31:09,549 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:31:09,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:31:09,568 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:31:09,605 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:31:09,679 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:31:09,681 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:31:09,685 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:31:09,687 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:31:09,688 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:31:09,700 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 17:31:09,702 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:31:09,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:31:09,982 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:31:09,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:09 WrapperNode [2022-11-25 17:31:09,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:31:09,984 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:31:09,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:31:09,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:31:09,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:09" (1/1) ... [2022-11-25 17:31:10,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:09" (1/1) ... [2022-11-25 17:31:10,046 INFO L138 Inliner]: procedures = 938, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2022-11-25 17:31:10,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:31:10,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:31:10,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:31:10,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:31:10,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:09" (1/1) ... [2022-11-25 17:31:10,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:09" (1/1) ... [2022-11-25 17:31:10,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:09" (1/1) ... [2022-11-25 17:31:10,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:09" (1/1) ... [2022-11-25 17:31:10,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:09" (1/1) ... [2022-11-25 17:31:10,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:09" (1/1) ... [2022-11-25 17:31:10,071 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:09" (1/1) ... [2022-11-25 17:31:10,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:09" (1/1) ... [2022-11-25 17:31:10,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:31:10,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:31:10,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:31:10,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:31:10,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:09" (1/1) ... [2022-11-25 17:31:10,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:31:10,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:31:10,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:31:10,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:31:10,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:31:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:31:10,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:31:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:31:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 17:31:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 17:31:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 17:31:10,159 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 17:31:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:31:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 17:31:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:31:10,305 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:31:10,307 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:31:10,443 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:31:10,449 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:31:10,449 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 17:31:10,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:31:10 BoogieIcfgContainer [2022-11-25 17:31:10,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:31:10,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:31:10,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:31:10,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:31:10,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:31:07" (1/3) ... [2022-11-25 17:31:10,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3161d47d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:31:10, skipping insertion in model container [2022-11-25 17:31:10,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:09" (2/3) ... [2022-11-25 17:31:10,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3161d47d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:31:10, skipping insertion in model container [2022-11-25 17:31:10,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:31:10" (3/3) ... [2022-11-25 17:31:10,460 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_03_bad.i [2022-11-25 17:31:10,480 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:31:10,480 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:31:10,532 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:31:10,539 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;@5ff33822, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:31:10,539 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 17:31:10,544 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.375) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 17:31:10,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 17:31:10,553 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:31:10,553 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:31:10,554 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:31:10,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:10,560 INFO L85 PathProgramCache]: Analyzing trace with hash -500819106, now seen corresponding path program 1 times [2022-11-25 17:31:10,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:10,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691309209] [2022-11-25 17:31:10,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:10,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:31:10,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:31:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:31:10,878 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 17:31:10,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:31:10,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691309209] [2022-11-25 17:31:10,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691309209] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:31:10,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:31:10,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:31:10,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152741244] [2022-11-25 17:31:10,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:31:10,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:31:10,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:31:10,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:31:10,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:31:10,936 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.375) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 17:31:10,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:31:10,958 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2022-11-25 17:31:10,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:31:10,961 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 10 [2022-11-25 17:31:10,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:31:10,967 INFO L225 Difference]: With dead ends: 37 [2022-11-25 17:31:10,967 INFO L226 Difference]: Without dead ends: 15 [2022-11-25 17:31:10,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:31:10,974 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:31:10,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:31:10,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-25 17:31:11,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-25 17:31:11,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 17:31:11,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-25 17:31:11,006 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2022-11-25 17:31:11,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:31:11,007 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-25 17:31:11,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 17:31:11,008 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-25 17:31:11,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 17:31:11,009 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:31:11,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:31:11,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:31:11,010 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:31:11,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:11,011 INFO L85 PathProgramCache]: Analyzing trace with hash 804859611, now seen corresponding path program 1 times [2022-11-25 17:31:11,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:31:11,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999324375] [2022-11-25 17:31:11,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:11,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:31:11,044 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 17:31:11,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [502597786] [2022-11-25 17:31:11,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:11,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:31:11,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:31:11,049 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:31:11,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:31:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:11,187 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:31:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:11,238 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:31:11,240 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:31:11,243 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 17:31:11,248 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 17:31:11,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:31:11,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:31:11,485 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 17:31:11,489 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:31:11,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:31:11 BoogieIcfgContainer [2022-11-25 17:31:11,523 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:31:11,523 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:31:11,524 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:31:11,524 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:31:11,524 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:31:10" (3/4) ... [2022-11-25 17:31:11,528 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:31:11,528 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:31:11,529 INFO L158 Benchmark]: Toolchain (without parser) took 3845.42ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 85.4MB in the beginning and 145.7MB in the end (delta: -60.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:31:11,529 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 134.2MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:31:11,530 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2298.20ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 85.0MB in the beginning and 124.1MB in the end (delta: -39.1MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. [2022-11-25 17:31:11,530 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.36ms. Allocated memory is still 188.7MB. Free memory was 124.1MB in the beginning and 119.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:31:11,531 INFO L158 Benchmark]: Boogie Preprocessor took 27.51ms. Allocated memory is still 188.7MB. Free memory was 119.9MB in the beginning and 117.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:31:11,532 INFO L158 Benchmark]: RCFGBuilder took 375.85ms. Allocated memory is still 188.7MB. Free memory was 117.8MB in the beginning and 105.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:31:11,532 INFO L158 Benchmark]: TraceAbstraction took 1069.28ms. Allocated memory is still 188.7MB. Free memory was 104.2MB in the beginning and 146.7MB in the end (delta: -42.5MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. [2022-11-25 17:31:11,533 INFO L158 Benchmark]: Witness Printer took 4.83ms. Allocated memory is still 188.7MB. Free memory was 146.7MB in the beginning and 145.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:31:11,536 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 134.2MB. Free memory is still 79.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2298.20ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 85.0MB in the beginning and 124.1MB in the end (delta: -39.1MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.36ms. Allocated memory is still 188.7MB. Free memory was 124.1MB in the beginning and 119.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.51ms. Allocated memory is still 188.7MB. Free memory was 119.9MB in the beginning and 117.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 375.85ms. Allocated memory is still 188.7MB. Free memory was 117.8MB in the beginning and 105.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1069.28ms. Allocated memory is still 188.7MB. Free memory was 104.2MB in the beginning and 146.7MB in the end (delta: -42.5MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. * Witness Printer took 4.83ms. Allocated memory is still 188.7MB. Free memory was 146.7MB in the beginning and 145.7MB in the end (delta: 1.0MB). 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: 1853]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1842. 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] [L1861] 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) [L1861] RET printLine("Calling bad()...") VAL [\old(argc)=18, argc=18, argv={20:19}, argv={20:19}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1862] CALL CWE190_Integer_Overflow__int_fgets_square_03_bad() [L1834] int data; [L1835] 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] [L1839] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1840] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1842] data = atoi(inputBuffer) [L1839] 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] [L1853] data * data 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: 1853]: 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 17:31:11,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/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_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_03_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/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_12427812-0937-431f-86eb-cb61abb54b95/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 06592c51df9ad6320061ea18b4dabc8bbef9afafc67b1591cc16d5a9b42087a0 --- 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 17:31:13,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:31:13,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:31:14,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:31:14,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:31:14,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:31:14,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:31:14,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:31:14,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:31:14,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:31:14,030 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:31:14,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:31:14,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:31:14,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:31:14,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:31:14,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:31:14,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:31:14,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:31:14,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:31:14,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:31:14,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:31:14,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:31:14,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:31:14,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:31:14,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:31:14,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:31:14,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:31:14,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:31:14,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:31:14,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:31:14,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:31:14,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:31:14,069 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:31:14,070 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:31:14,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:31:14,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:31:14,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:31:14,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:31:14,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:31:14,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:31:14,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:31:14,094 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-25 17:31:14,141 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:31:14,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:31:14,143 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:31:14,143 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:31:14,144 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:31:14,144 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:31:14,145 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:31:14,145 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:31:14,145 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:31:14,146 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:31:14,147 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:31:14,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:31:14,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:31:14,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:31:14,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:31:14,148 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:31:14,148 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:31:14,148 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:31:14,148 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:31:14,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:31:14,149 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:31:14,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:31:14,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:31:14,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:31:14,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:31:14,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:31:14,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:31:14,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:31:14,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:31:14,151 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:31:14,151 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:31:14,151 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:31:14,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:31:14,152 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:31:14,152 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:31:14,152 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:31:14,152 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_12427812-0937-431f-86eb-cb61abb54b95/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06592c51df9ad6320061ea18b4dabc8bbef9afafc67b1591cc16d5a9b42087a0 [2022-11-25 17:31:14,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:31:14,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:31:14,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:31:14,572 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:31:14,573 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:31:14,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_03_bad.i [2022-11-25 17:31:17,652 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:31:18,067 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:31:18,068 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_03_bad.i [2022-11-25 17:31:18,106 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/data/70ec3962f/aec46b8297054bf3b104668f33416fd6/FLAGdd4d16b8a [2022-11-25 17:31:18,131 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/data/70ec3962f/aec46b8297054bf3b104668f33416fd6 [2022-11-25 17:31:18,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:31:18,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:31:18,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:31:18,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:31:18,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:31:18,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:31:18" (1/1) ... [2022-11-25 17:31:18,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4be29d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:18, skipping insertion in model container [2022-11-25 17:31:18,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:31:18" (1/1) ... [2022-11-25 17:31:18,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:31:18,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:31:18,875 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:31:19,881 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:31:19,889 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:31:19,893 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:31:19,901 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:31:19,902 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:31:20,459 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 17:31:20,466 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:31:20,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:31:20,483 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:31:20,506 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:31:20,558 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:31:20,559 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:31:20,561 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:31:20,563 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:31:20,564 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:31:20,577 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 17:31:20,579 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:31:20,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:31:20,946 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:31:20,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:20 WrapperNode [2022-11-25 17:31:20,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:31:20,948 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:31:20,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:31:20,948 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:31:20,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:20" (1/1) ... [2022-11-25 17:31:20,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:20" (1/1) ... [2022-11-25 17:31:21,017 INFO L138 Inliner]: procedures = 943, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2022-11-25 17:31:21,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:31:21,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:31:21,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:31:21,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:31:21,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:20" (1/1) ... [2022-11-25 17:31:21,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:20" (1/1) ... [2022-11-25 17:31:21,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:20" (1/1) ... [2022-11-25 17:31:21,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:20" (1/1) ... [2022-11-25 17:31:21,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:20" (1/1) ... [2022-11-25 17:31:21,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:20" (1/1) ... [2022-11-25 17:31:21,049 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:20" (1/1) ... [2022-11-25 17:31:21,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:20" (1/1) ... [2022-11-25 17:31:21,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:31:21,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:31:21,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:31:21,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:31:21,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:20" (1/1) ... [2022-11-25 17:31:21,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:31:21,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:31:21,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:31:21,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:31:21,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:31:21,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:31:21,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:31:21,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:31:21,164 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 17:31:21,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-25 17:31:21,164 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 17:31:21,165 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 17:31:21,165 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 17:31:21,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:31:21,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 17:31:21,407 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:31:21,409 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:31:22,811 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:31:22,816 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:31:22,816 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 17:31:22,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:31:22 BoogieIcfgContainer [2022-11-25 17:31:22,819 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:31:22,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:31:22,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:31:22,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:31:22,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:31:18" (1/3) ... [2022-11-25 17:31:22,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab0bc9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:31:22, skipping insertion in model container [2022-11-25 17:31:22,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:31:20" (2/3) ... [2022-11-25 17:31:22,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ab0bc9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:31:22, skipping insertion in model container [2022-11-25 17:31:22,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:31:22" (3/3) ... [2022-11-25 17:31:22,828 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_03_bad.i [2022-11-25 17:31:22,850 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:31:22,850 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:31:22,930 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:31:22,942 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;@7d7502b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:31:22,943 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 17:31:22,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.375) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 17:31:22,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 17:31:22,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:31:22,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:31:22,960 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:31:22,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:22,971 INFO L85 PathProgramCache]: Analyzing trace with hash -500819106, now seen corresponding path program 1 times [2022-11-25 17:31:22,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:31:22,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1806118210] [2022-11-25 17:31:22,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:22,993 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 17:31:22,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:31:23,000 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/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 17:31:23,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/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 17:31:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:31:23,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 17:31:23,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:31:23,250 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 17:31:23,251 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:31:23,251 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:31:23,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1806118210] [2022-11-25 17:31:23,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1806118210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:31:23,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:31:23,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:31:23,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079365386] [2022-11-25 17:31:23,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:31:23,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:31:23,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:31:23,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:31:23,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:31:23,327 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.375) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 17:31:23,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:31:23,354 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2022-11-25 17:31:23,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:31:23,357 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 10 [2022-11-25 17:31:23,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:31:23,365 INFO L225 Difference]: With dead ends: 38 [2022-11-25 17:31:23,365 INFO L226 Difference]: Without dead ends: 16 [2022-11-25 17:31:23,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:31:23,377 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:31:23,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:31:23,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-25 17:31:23,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-25 17:31:23,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 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 17:31:23,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-11-25 17:31:23,420 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 10 [2022-11-25 17:31:23,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:31:23,423 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-11-25 17:31:23,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 17:31:23,425 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-11-25 17:31:23,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 17:31:23,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:31:23,427 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:31:23,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/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 17:31:23,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/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 17:31:23,643 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 17:31:23,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:31:23,646 INFO L85 PathProgramCache]: Analyzing trace with hash -251131453, now seen corresponding path program 1 times [2022-11-25 17:31:23,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:31:23,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1674621805] [2022-11-25 17:31:23,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:31:23,648 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 17:31:23,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:31:23,650 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/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 17:31:23,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12427812-0937-431f-86eb-cb61abb54b95/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 17:31:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:31:23,834 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.