./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_17_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_6461a627-311e-4860-b0dd-5d5fcf21b39a/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6461a627-311e-4860-b0dd-5d5fcf21b39a/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_6461a627-311e-4860-b0dd-5d5fcf21b39a/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6461a627-311e-4860-b0dd-5d5fcf21b39a/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_17_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6461a627-311e-4860-b0dd-5d5fcf21b39a/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_6461a627-311e-4860-b0dd-5d5fcf21b39a/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 de98058f8b89fd6510fa67c33bcc86c42a787a37b4dda1046d2af96b9857e9bf --- 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 15:49:07,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:49:07,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:49:08,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:49:08,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:49:08,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:49:08,039 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:49:08,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:49:08,045 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:49:08,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:49:08,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:49:08,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:49:08,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:49:08,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:49:08,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:49:08,062 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:49:08,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:49:08,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:49:08,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:49:08,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:49:08,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:49:08,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:49:08,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:49:08,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:49:08,091 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:49:08,091 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:49:08,092 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:49:08,094 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:49:08,095 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:49:08,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:49:08,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:49:08,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:49:08,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:49:08,100 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:49:08,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:49:08,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:49:08,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:49:08,103 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:49:08,104 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:49:08,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:49:08,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:49:08,107 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6461a627-311e-4860-b0dd-5d5fcf21b39a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 15:49:08,144 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:49:08,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:49:08,145 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:49:08,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:49:08,147 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:49:08,147 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:49:08,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:49:08,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:49:08,148 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:49:08,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:49:08,150 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:49:08,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:49:08,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:49:08,151 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:49:08,151 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:49:08,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:49:08,152 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 15:49:08,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:49:08,152 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:49:08,153 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:49:08,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:49:08,153 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:49:08,154 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:49:08,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:49:08,154 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:49:08,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:49:08,155 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:49:08,155 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:49:08,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:49:08,156 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:49:08,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:49:08,157 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:49:08,157 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:49:08,157 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_6461a627-311e-4860-b0dd-5d5fcf21b39a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6461a627-311e-4860-b0dd-5d5fcf21b39a/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de98058f8b89fd6510fa67c33bcc86c42a787a37b4dda1046d2af96b9857e9bf [2022-11-25 15:49:08,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:49:08,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:49:08,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:49:08,576 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:49:08,576 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:49:08,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6461a627-311e-4860-b0dd-5d5fcf21b39a/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_17_bad.i [2022-11-25 15:49:11,606 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:49:11,972 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:49:11,973 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6461a627-311e-4860-b0dd-5d5fcf21b39a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_17_bad.i [2022-11-25 15:49:11,995 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6461a627-311e-4860-b0dd-5d5fcf21b39a/bin/uautomizer-ZsLfNo2U6R/data/9b55491d8/94fe3ffa9a8541d0a31c4fb0c0e7541b/FLAGeff70208b [2022-11-25 15:49:12,009 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6461a627-311e-4860-b0dd-5d5fcf21b39a/bin/uautomizer-ZsLfNo2U6R/data/9b55491d8/94fe3ffa9a8541d0a31c4fb0c0e7541b [2022-11-25 15:49:12,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:49:12,013 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:49:12,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:49:12,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:49:12,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:49:12,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:49:12" (1/1) ... [2022-11-25 15:49:12,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f010c7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:49:12, skipping insertion in model container [2022-11-25 15:49:12,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:49:12" (1/1) ... [2022-11-25 15:49:12,029 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:49:12,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:49:12,535 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 15:49:13,074 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:49:13,080 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:49:13,082 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:49:13,085 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:49:13,086 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:49:13,113 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 15:49:13,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:49:13,124 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:49:13,155 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 15:49:13,225 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:49:13,244 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:49:13,248 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:49:13,250 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:49:13,257 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:49:13,263 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 15:49:13,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:49:13,393 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:49:13,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:49:13 WrapperNode [2022-11-25 15:49:13,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:49:13,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:49:13,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:49:13,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:49:13,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:49:13" (1/1) ... [2022-11-25 15:49:13,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:49:13" (1/1) ... [2022-11-25 15:49:13,447 INFO L138 Inliner]: procedures = 499, calls = 59, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2022-11-25 15:49:13,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:49:13,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:49:13,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:49:13,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:49:13,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:49:13" (1/1) ... [2022-11-25 15:49:13,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:49:13" (1/1) ... [2022-11-25 15:49:13,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:49:13" (1/1) ... [2022-11-25 15:49:13,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:49:13" (1/1) ... [2022-11-25 15:49:13,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:49:13" (1/1) ... [2022-11-25 15:49:13,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:49:13" (1/1) ... [2022-11-25 15:49:13,482 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:49:13" (1/1) ... [2022-11-25 15:49:13,484 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:49:13" (1/1) ... [2022-11-25 15:49:13,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:49:13,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:49:13,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:49:13,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:49:13,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:49:13" (1/1) ... [2022-11-25 15:49:13,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:49:13,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6461a627-311e-4860-b0dd-5d5fcf21b39a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:49:13,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6461a627-311e-4860-b0dd-5d5fcf21b39a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:49:13,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6461a627-311e-4860-b0dd-5d5fcf21b39a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:49:13,600 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 15:49:13,600 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 15:49:13,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:49:13,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:49:13,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:49:13,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:49:13,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:49:13,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:49:13,601 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 15:49:13,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:49:13,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:49:13,782 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:49:13,784 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:49:13,943 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:49:13,950 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:49:13,950 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 15:49:13,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:49:13 BoogieIcfgContainer [2022-11-25 15:49:13,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:49:13,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:49:13,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:49:13,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:49:13,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:49:12" (1/3) ... [2022-11-25 15:49:13,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494dc220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:49:13, skipping insertion in model container [2022-11-25 15:49:13,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:49:13" (2/3) ... [2022-11-25 15:49:13,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494dc220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:49:13, skipping insertion in model container [2022-11-25 15:49:13,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:49:13" (3/3) ... [2022-11-25 15:49:13,963 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_sub_17_bad.i [2022-11-25 15:49:13,997 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:49:13,997 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-25 15:49:14,059 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:49:14,067 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;@442b2090, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:49:14,068 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-25 15:49:14,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 29 states have internal predecessors, (34), 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 15:49:14,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 15:49:14,080 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:49:14,081 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:49:14,082 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:49:14,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:49:14,088 INFO L85 PathProgramCache]: Analyzing trace with hash -798313985, now seen corresponding path program 1 times [2022-11-25 15:49:14,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:49:14,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759178137] [2022-11-25 15:49:14,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:49:14,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:49:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:14,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:49:14,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:14,523 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 15:49:14,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:49:14,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759178137] [2022-11-25 15:49:14,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759178137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:49:14,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:49:14,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:49:14,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396954145] [2022-11-25 15:49:14,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:49:14,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:49:14,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:49:14,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:49:14,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:49:14,583 INFO L87 Difference]: Start difference. First operand has 33 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 29 states have internal predecessors, (34), 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) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 15:49:14,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:49:14,675 INFO L93 Difference]: Finished difference Result 62 states and 71 transitions. [2022-11-25 15:49:14,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:49:14,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 11 [2022-11-25 15:49:14,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:49:14,685 INFO L225 Difference]: With dead ends: 62 [2022-11-25 15:49:14,685 INFO L226 Difference]: Without dead ends: 30 [2022-11-25 15:49:14,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:49:14,694 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 3 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:49:14,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 92 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:49:14,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-25 15:49:14,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-25 15:49:14,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 27 states have internal predecessors, (30), 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 15:49:14,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2022-11-25 15:49:14,736 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 11 [2022-11-25 15:49:14,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:49:14,736 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2022-11-25 15:49:14,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 15:49:14,738 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-11-25 15:49:14,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 15:49:14,740 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:49:14,740 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:49:14,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:49:14,741 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:49:14,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:49:14,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1473106299, now seen corresponding path program 1 times [2022-11-25 15:49:14,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:49:14,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940005202] [2022-11-25 15:49:14,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:49:14,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:49:14,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:14,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:49:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:14,902 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:49:14,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:49:14,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940005202] [2022-11-25 15:49:14,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940005202] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:49:14,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601238986] [2022-11-25 15:49:14,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:49:14,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:49:14,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6461a627-311e-4860-b0dd-5d5fcf21b39a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:49:14,907 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6461a627-311e-4860-b0dd-5d5fcf21b39a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:49:14,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6461a627-311e-4860-b0dd-5d5fcf21b39a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 15:49:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:15,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 15:49:15,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:49:15,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:49:15,152 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:49:15,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601238986] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:49:15,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:49:15,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-25 15:49:15,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63461665] [2022-11-25 15:49:15,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:49:15,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:49:15,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:49:15,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:49:15,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:49:15,156 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 15:49:15,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:49:15,182 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2022-11-25 15:49:15,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:49:15,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 15 [2022-11-25 15:49:15,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:49:15,183 INFO L225 Difference]: With dead ends: 43 [2022-11-25 15:49:15,184 INFO L226 Difference]: Without dead ends: 25 [2022-11-25 15:49:15,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:49:15,185 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 15 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:49:15,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 57 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:49:15,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-25 15:49:15,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-25 15:49:15,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.263157894736842) internal successors, (24), 22 states have internal predecessors, (24), 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 15:49:15,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2022-11-25 15:49:15,191 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 15 [2022-11-25 15:49:15,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:49:15,191 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2022-11-25 15:49:15,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 15:49:15,192 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2022-11-25 15:49:15,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 15:49:15,192 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:49:15,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:49:15,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6461a627-311e-4860-b0dd-5d5fcf21b39a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 15:49:15,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6461a627-311e-4860-b0dd-5d5fcf21b39a/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:49:15,399 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-25 15:49:15,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:49:15,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1578396377, now seen corresponding path program 1 times [2022-11-25 15:49:15,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:49:15,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943329257] [2022-11-25 15:49:15,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:49:15,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:49:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:49:15,427 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:49:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:49:15,458 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:49:15,459 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 15:49:15,460 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-25 15:49:15,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-25 15:49:15,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-25 15:49:15,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-25 15:49:15,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-25 15:49:15,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-25 15:49:15,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 15:49:15,468 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 15:49:15,472 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:49:15,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:49:15 BoogieIcfgContainer [2022-11-25 15:49:15,511 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:49:15,512 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:49:15,512 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:49:15,513 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:49:15,513 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:49:13" (3/4) ... [2022-11-25 15:49:15,515 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 15:49:15,594 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6461a627-311e-4860-b0dd-5d5fcf21b39a/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:49:15,594 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:49:15,595 INFO L158 Benchmark]: Toolchain (without parser) took 3581.51ms. Allocated memory is still 169.9MB. Free memory was 135.1MB in the beginning and 119.2MB in the end (delta: 15.9MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2022-11-25 15:49:15,595 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory was 88.3MB in the beginning and 88.2MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:49:15,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1380.15ms. Allocated memory is still 169.9MB. Free memory was 134.5MB in the beginning and 137.1MB in the end (delta: -2.5MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. [2022-11-25 15:49:15,596 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.03ms. Allocated memory is still 169.9MB. Free memory was 137.1MB in the beginning and 134.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:49:15,596 INFO L158 Benchmark]: Boogie Preprocessor took 38.44ms. Allocated memory is still 169.9MB. Free memory was 134.2MB in the beginning and 132.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:49:15,597 INFO L158 Benchmark]: RCFGBuilder took 465.23ms. Allocated memory is still 169.9MB. Free memory was 132.2MB in the beginning and 119.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 15:49:15,597 INFO L158 Benchmark]: TraceAbstraction took 1557.69ms. Allocated memory is still 169.9MB. Free memory was 119.3MB in the beginning and 122.3MB in the end (delta: -3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:49:15,608 INFO L158 Benchmark]: Witness Printer took 82.03ms. Allocated memory is still 169.9MB. Free memory was 121.3MB in the beginning and 119.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:49:15,610 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 113.2MB. Free memory was 88.3MB in the beginning and 88.2MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1380.15ms. Allocated memory is still 169.9MB. Free memory was 134.5MB in the beginning and 137.1MB in the end (delta: -2.5MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.03ms. Allocated memory is still 169.9MB. Free memory was 137.1MB in the beginning and 134.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.44ms. Allocated memory is still 169.9MB. Free memory was 134.2MB in the beginning and 132.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 465.23ms. Allocated memory is still 169.9MB. Free memory was 132.2MB in the beginning and 119.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1557.69ms. Allocated memory is still 169.9MB. Free memory was 119.3MB in the beginning and 122.3MB in the end (delta: -3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 82.03ms. Allocated memory is still 169.9MB. Free memory was 121.3MB in the beginning and 119.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1560]: integer overflow possible integer overflow possible We found a 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] [L1568] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1568] RET printLine("Calling bad()...") VAL [\old(argc)=1073741829, argc=1073741829, argv={1073741827:1073741830}, argv={1073741827:1073741830}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_fscanf_sub_17_bad() [L1550] int i,j; [L1551] int data; [L1552] data = 0 [L1553] i = 0 VAL [data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=0] [L1553] COND TRUE i < 1 [L1553] i++ VAL [data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1] [L1553] COND FALSE !(i < 1) VAL [data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1] [L1557] j = 0 VAL [data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] [L1557] COND TRUE j < 1 [L1560] EXPR \read(data) VAL [\read(data)=-2147483648, data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] [L1560] data - 1 VAL [\read(data)=-2147483648, data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=1, j=0] - UnprovableResult [Line: 1553]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1553]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1557]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1557]: 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, 33 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 149 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 96 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 53 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 1 NumberOfNonLiveVariables, 133 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 5/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 15:49:15,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6461a627-311e-4860-b0dd-5d5fcf21b39a/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)