./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_good.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_21a1405e-b670-4b7b-b2a1-f9909c4a00d7/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21a1405e-b670-4b7b-b2a1-f9909c4a00d7/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_21a1405e-b670-4b7b-b2a1-f9909c4a00d7/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21a1405e-b670-4b7b-b2a1-f9909c4a00d7/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21a1405e-b670-4b7b-b2a1-f9909c4a00d7/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_21a1405e-b670-4b7b-b2a1-f9909c4a00d7/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 eaf576a220299294776f1e95da9d54aa2aa040b13b7e3f77830ae2c7a6a96afd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 16:53:08,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:53:08,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:53:08,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:53:08,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:53:08,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:53:08,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:53:08,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:53:08,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:53:08,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:53:08,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:53:08,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:53:08,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:53:08,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:53:08,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:53:08,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:53:08,319 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:53:08,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:53:08,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:53:08,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:53:08,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:53:08,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:53:08,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:53:08,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:53:08,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:53:08,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:53:08,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:53:08,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:53:08,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:53:08,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:53:08,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:53:08,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:53:08,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:53:08,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:53:08,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:53:08,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:53:08,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:53:08,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:53:08,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:53:08,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:53:08,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:53:08,362 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21a1405e-b670-4b7b-b2a1-f9909c4a00d7/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 16:53:08,403 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:53:08,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:53:08,404 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:53:08,404 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:53:08,405 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:53:08,405 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:53:08,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:53:08,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:53:08,406 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:53:08,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:53:08,408 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:53:08,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:53:08,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:53:08,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:53:08,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:53:08,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:53:08,409 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 16:53:08,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:53:08,409 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:53:08,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:53:08,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:53:08,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:53:08,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:53:08,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:53:08,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:53:08,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:53:08,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:53:08,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:53:08,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:53:08,412 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:53:08,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:53:08,413 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:53:08,413 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:53:08,413 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_21a1405e-b670-4b7b-b2a1-f9909c4a00d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21a1405e-b670-4b7b-b2a1-f9909c4a00d7/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eaf576a220299294776f1e95da9d54aa2aa040b13b7e3f77830ae2c7a6a96afd [2022-11-25 16:53:08,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:53:08,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:53:08,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:53:08,731 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:53:08,731 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:53:08,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21a1405e-b670-4b7b-b2a1-f9909c4a00d7/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_good.i [2022-11-25 16:53:11,744 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:53:12,115 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:53:12,116 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21a1405e-b670-4b7b-b2a1-f9909c4a00d7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_65_good.i [2022-11-25 16:53:12,145 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21a1405e-b670-4b7b-b2a1-f9909c4a00d7/bin/uautomizer-ZsLfNo2U6R/data/82b0c76e6/48e11f19df3f4109884dee330ded0aa0/FLAG28802763f [2022-11-25 16:53:12,163 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21a1405e-b670-4b7b-b2a1-f9909c4a00d7/bin/uautomizer-ZsLfNo2U6R/data/82b0c76e6/48e11f19df3f4109884dee330ded0aa0 [2022-11-25 16:53:12,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:53:12,168 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:53:12,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:53:12,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:53:12,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:53:12,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:53:12" (1/1) ... [2022-11-25 16:53:12,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@235b2d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:12, skipping insertion in model container [2022-11-25 16:53:12,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:53:12" (1/1) ... [2022-11-25 16:53:12,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:53:12,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:53:12,769 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 16:53:13,292 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:53:13,303 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 16:53:13,308 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 16:53:13,313 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 16:53:13,319 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 16:53:13,358 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 16:53:13,361 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 16:53:13,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:53:13,383 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:53:13,415 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 16:53:13,482 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 16:53:13,489 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 16:53:13,490 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 16:53:13,495 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 16:53:13,498 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 16:53:13,511 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 16:53:13,516 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 16:53:13,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:53:13,664 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:53:13,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:13 WrapperNode [2022-11-25 16:53:13,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:53:13,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:53:13,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:53:13,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:53:13,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:13" (1/1) ... [2022-11-25 16:53:13,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:13" (1/1) ... [2022-11-25 16:53:13,758 INFO L138 Inliner]: procedures = 505, calls = 71, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 78 [2022-11-25 16:53:13,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:53:13,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:53:13,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:53:13,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:53:13,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:13" (1/1) ... [2022-11-25 16:53:13,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:13" (1/1) ... [2022-11-25 16:53:13,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:13" (1/1) ... [2022-11-25 16:53:13,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:13" (1/1) ... [2022-11-25 16:53:13,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:13" (1/1) ... [2022-11-25 16:53:13,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:13" (1/1) ... [2022-11-25 16:53:13,804 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:13" (1/1) ... [2022-11-25 16:53:13,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:13" (1/1) ... [2022-11-25 16:53:13,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:53:13,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:53:13,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:53:13,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:53:13,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:13" (1/1) ... [2022-11-25 16:53:13,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:53:13,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21a1405e-b670-4b7b-b2a1-f9909c4a00d7/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:53:13,856 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21a1405e-b670-4b7b-b2a1-f9909c4a00d7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:53:13,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21a1405e-b670-4b7b-b2a1-f9909c4a00d7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:53:13,900 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-25 16:53:13,900 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-25 16:53:13,900 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 16:53:13,901 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 16:53:13,901 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 16:53:13,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:53:13,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 16:53:13,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:53:13,902 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-25 16:53:13,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-25 16:53:13,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:53:13,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:53:13,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 16:53:13,902 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 16:53:13,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:53:14,122 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:53:14,125 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:53:14,335 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:53:14,342 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:53:14,342 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 16:53:14,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:53:14 BoogieIcfgContainer [2022-11-25 16:53:14,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:53:14,347 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:53:14,347 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:53:14,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:53:14,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:53:12" (1/3) ... [2022-11-25 16:53:14,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@152b05c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:53:14, skipping insertion in model container [2022-11-25 16:53:14,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:53:13" (2/3) ... [2022-11-25 16:53:14,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@152b05c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:53:14, skipping insertion in model container [2022-11-25 16:53:14,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:53:14" (3/3) ... [2022-11-25 16:53:14,353 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_65_good.i [2022-11-25 16:53:14,371 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:53:14,372 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 16:53:14,430 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:53:14,437 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;@50a5262b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:53:14,438 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-25 16:53:14,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 32 states have internal predecessors, (34), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 16:53:14,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 16:53:14,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:14,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:53:14,454 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ##fun~int~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~int~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 16:53:14,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:14,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1648763447, now seen corresponding path program 1 times [2022-11-25 16:53:14,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:14,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361887334] [2022-11-25 16:53:14,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:14,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:14,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:53:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:14,891 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 16:53:14,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:14,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361887334] [2022-11-25 16:53:14,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361887334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:14,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:14,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:53:14,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999078343] [2022-11-25 16:53:14,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:14,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:53:14,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:14,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:53:14,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:53:14,932 INFO L87 Difference]: Start difference. First operand has 42 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 32 states have internal predecessors, (34), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 6 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:53:15,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:15,057 INFO L93 Difference]: Finished difference Result 60 states and 72 transitions. [2022-11-25 16:53:15,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 16:53:15,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-25 16:53:15,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:15,068 INFO L225 Difference]: With dead ends: 60 [2022-11-25 16:53:15,068 INFO L226 Difference]: Without dead ends: 45 [2022-11-25 16:53:15,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-25 16:53:15,075 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 40 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:15,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 216 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:53:15,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-25 16:53:15,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2022-11-25 16:53:15,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 33 states have internal predecessors, (38), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 16:53:15,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2022-11-25 16:53:15,115 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 12 [2022-11-25 16:53:15,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:15,117 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2022-11-25 16:53:15,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:53:15,118 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2022-11-25 16:53:15,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 16:53:15,119 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:15,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:53:15,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:53:15,120 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ##fun~int~TO~VOIDErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~int~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 16:53:15,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:15,121 INFO L85 PathProgramCache]: Analyzing trace with hash -427940607, now seen corresponding path program 1 times [2022-11-25 16:53:15,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:15,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079352933] [2022-11-25 16:53:15,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:15,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:15,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:53:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:15,295 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 16:53:15,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:15,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079352933] [2022-11-25 16:53:15,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079352933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:15,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:15,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:53:15,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214853458] [2022-11-25 16:53:15,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:15,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:53:15,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:15,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:53:15,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:53:15,300 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 6 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:53:15,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:15,366 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2022-11-25 16:53:15,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 16:53:15,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-11-25 16:53:15,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:15,368 INFO L225 Difference]: With dead ends: 47 [2022-11-25 16:53:15,368 INFO L226 Difference]: Without dead ends: 46 [2022-11-25 16:53:15,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-25 16:53:15,370 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 35 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:15,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 153 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:53:15,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-25 16:53:15,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2022-11-25 16:53:15,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 33 states have internal predecessors, (37), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 16:53:15,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2022-11-25 16:53:15,381 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 13 [2022-11-25 16:53:15,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:15,382 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2022-11-25 16:53:15,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:53:15,382 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2022-11-25 16:53:15,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 16:53:15,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:15,383 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:53:15,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 16:53:15,384 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ##fun~int~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~int~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 16:53:15,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:15,385 INFO L85 PathProgramCache]: Analyzing trace with hash -427955470, now seen corresponding path program 1 times [2022-11-25 16:53:15,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:15,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080680050] [2022-11-25 16:53:15,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:15,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:15,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:53:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:15,431 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 16:53:15,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:15,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080680050] [2022-11-25 16:53:15,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080680050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:15,432 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:15,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 16:53:15,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66644349] [2022-11-25 16:53:15,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:15,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:53:15,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:15,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:53:15,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:53:15,435 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:53:15,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:15,449 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2022-11-25 16:53:15,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:53:15,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-11-25 16:53:15,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:15,450 INFO L225 Difference]: With dead ends: 42 [2022-11-25 16:53:15,451 INFO L226 Difference]: Without dead ends: 41 [2022-11-25 16:53:15,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:53:15,452 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 2 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:15,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 73 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:53:15,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-25 16:53:15,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-11-25 16:53:15,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 28 states have (on average 1.25) internal successors, (35), 32 states have internal predecessors, (35), 7 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 16:53:15,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2022-11-25 16:53:15,463 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 13 [2022-11-25 16:53:15,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:15,463 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2022-11-25 16:53:15,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:53:15,464 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2022-11-25 16:53:15,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 16:53:15,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:15,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:53:15,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 16:53:15,466 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ##fun~int~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~int~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 16:53:15,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:15,466 INFO L85 PathProgramCache]: Analyzing trace with hash -381717606, now seen corresponding path program 1 times [2022-11-25 16:53:15,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:15,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890795257] [2022-11-25 16:53:15,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:15,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:15,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:53:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:15,611 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 16:53:15,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:15,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890795257] [2022-11-25 16:53:15,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890795257] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:15,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:15,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:53:15,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318208981] [2022-11-25 16:53:15,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:15,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:53:15,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:15,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:53:15,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:53:15,615 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:53:15,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:15,663 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions. [2022-11-25 16:53:15,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:53:15,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-25 16:53:15,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:15,665 INFO L225 Difference]: With dead ends: 65 [2022-11-25 16:53:15,667 INFO L226 Difference]: Without dead ends: 35 [2022-11-25 16:53:15,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:53:15,670 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 9 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:15,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 76 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:53:15,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-25 16:53:15,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-25 16:53:15,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 27 states have internal predecessors, (28), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 16:53:15,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2022-11-25 16:53:15,688 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 14 [2022-11-25 16:53:15,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:15,688 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2022-11-25 16:53:15,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:53:15,689 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2022-11-25 16:53:15,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 16:53:15,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:15,690 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:53:15,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 16:53:15,691 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ##fun~int~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~int~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 16:53:15,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:15,692 INFO L85 PathProgramCache]: Analyzing trace with hash 582967574, now seen corresponding path program 1 times [2022-11-25 16:53:15,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:15,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057410999] [2022-11-25 16:53:15,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:15,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:16,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:53:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:16,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 16:53:16,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:16,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 16:53:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:16,049 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:16,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:16,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057410999] [2022-11-25 16:53:16,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057410999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:16,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:16,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:53:16,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405715871] [2022-11-25 16:53:16,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:16,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:53:16,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:16,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:53:16,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:53:16,060 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 16:53:16,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:16,092 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-11-25 16:53:16,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:53:16,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2022-11-25 16:53:16,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:16,094 INFO L225 Difference]: With dead ends: 35 [2022-11-25 16:53:16,094 INFO L226 Difference]: Without dead ends: 31 [2022-11-25 16:53:16,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:53:16,096 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 5 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:16,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 79 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:53:16,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-25 16:53:16,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-25 16:53:16,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 23 states have internal predecessors, (24), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 16:53:16,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2022-11-25 16:53:16,102 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 27 [2022-11-25 16:53:16,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:16,103 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2022-11-25 16:53:16,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 16:53:16,103 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2022-11-25 16:53:16,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-25 16:53:16,104 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:16,104 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:53:16,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 16:53:16,104 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ##fun~int~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [##fun~int~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ##fun~int~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 16:53:16,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:16,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1885632185, now seen corresponding path program 1 times [2022-11-25 16:53:16,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:16,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231326676] [2022-11-25 16:53:16,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:16,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:16,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:16,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 16:53:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:16,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 16:53:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:16,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 16:53:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:16,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:16,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:16,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231326676] [2022-11-25 16:53:16,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231326676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:16,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:16,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:53:16,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285084835] [2022-11-25 16:53:16,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:16,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:53:16,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:16,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:53:16,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:53:16,288 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 16:53:16,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:16,331 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-11-25 16:53:16,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:53:16,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2022-11-25 16:53:16,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:16,333 INFO L225 Difference]: With dead ends: 31 [2022-11-25 16:53:16,333 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 16:53:16,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-25 16:53:16,338 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 8 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:16,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 127 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:53:16,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 16:53:16,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 16:53:16,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:16,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 16:53:16,344 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2022-11-25 16:53:16,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:16,344 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 16:53:16,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 16:53:16,344 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 16:53:16,344 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 16:53:16,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ##fun~int~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-25 16:53:16,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ##fun~int~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-25 16:53:16,347 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ##fun~int~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-25 16:53:16,348 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ##fun~int~TO~VOIDErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-25 16:53:16,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 16:53:16,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 16:53:16,453 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-25 16:53:16,454 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-25 16:53:16,454 INFO L899 garLoopResultBuilder]: For program point L1414(lines 1414 1417) no Hoare annotation was computed. [2022-11-25 16:53:16,455 INFO L899 garLoopResultBuilder]: For program point L1414-2(lines 1412 1418) no Hoare annotation was computed. [2022-11-25 16:53:16,455 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-25 16:53:16,455 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-25 16:53:16,455 INFO L899 garLoopResultBuilder]: For program point printIntLineFINAL(lines 1426 1429) no Hoare annotation was computed. [2022-11-25 16:53:16,455 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 16:53:16,455 INFO L899 garLoopResultBuilder]: For program point L1565(lines 1565 1572) no Hoare annotation was computed. [2022-11-25 16:53:16,456 INFO L895 garLoopResultBuilder]: At program point L1555(line 1555) the Hoare annotation is: (let ((.cse0 (+ |ULTIMATE.start_goodG2B_~data~0#1| 2))) (and (<= 0 .cse0) (<= |ULTIMATE.start_goodG2B_~funcPtr~0#1.offset| |#funAddr~CWE191_Integer_Underflow__int_fgets_predec_65b_goodG2BSink.offset|) (<= .cse0 0))) [2022-11-25 16:53:16,456 INFO L899 garLoopResultBuilder]: For program point L1555-1(lines 1549 1556) no Hoare annotation was computed. [2022-11-25 16:53:16,456 INFO L895 garLoopResultBuilder]: At program point L1586(line 1586) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodG2B_~data~0#1| 2)) [2022-11-25 16:53:16,456 INFO L899 garLoopResultBuilder]: For program point L1586-1(line 1586) no Hoare annotation was computed. [2022-11-25 16:53:16,456 INFO L902 garLoopResultBuilder]: At program point L1584(line 1584) the Hoare annotation is: true [2022-11-25 16:53:16,456 INFO L899 garLoopResultBuilder]: For program point L1584-1(line 1584) no Hoare annotation was computed. [2022-11-25 16:53:16,456 INFO L899 garLoopResultBuilder]: For program point L1576(lines 1576 1580) no Hoare annotation was computed. [2022-11-25 16:53:16,457 INFO L895 garLoopResultBuilder]: At program point L1574(line 1574) the Hoare annotation is: (let ((.cse0 (+ |ULTIMATE.start_goodG2B_~data~0#1| 2))) (and (<= |ULTIMATE.start_goodB2G_~data~1#1| 2147483647) (<= 0 .cse0) (<= |ULTIMATE.start_goodB2G_~funcPtr~1#1.offset| |#funAddr~CWE191_Integer_Underflow__int_fgets_predec_65b_goodB2GSink.offset|) (<= |ULTIMATE.start_goodG2B_~funcPtr~0#1.offset| |#funAddr~CWE191_Integer_Underflow__int_fgets_predec_65b_goodG2BSink.offset|) (<= .cse0 0) (<= |#funAddr~CWE191_Integer_Underflow__int_fgets_predec_65b_goodB2GSink.base| |ULTIMATE.start_goodB2G_~funcPtr~1#1.base|) (<= |#funAddr~CWE191_Integer_Underflow__int_fgets_predec_65b_goodB2GSink.offset| |ULTIMATE.start_goodB2G_~funcPtr~1#1.offset|) (<= |ULTIMATE.start_goodB2G_~funcPtr~1#1.base| |#funAddr~CWE191_Integer_Underflow__int_fgets_predec_65b_goodB2GSink.base|))) [2022-11-25 16:53:16,459 INFO L899 garLoopResultBuilder]: For program point L1574-1(lines 1558 1575) no Hoare annotation was computed. [2022-11-25 16:53:16,459 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 16:53:16,459 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 16:53:16,459 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 16:53:16,459 INFO L895 garLoopResultBuilder]: At program point L1587(lines 1581 1588) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodG2B_~data~0#1| 2)) [2022-11-25 16:53:16,460 INFO L895 garLoopResultBuilder]: At program point L1571(line 1571) the Hoare annotation is: (let ((.cse0 (+ |ULTIMATE.start_goodG2B_~data~0#1| 2))) (and (<= |ULTIMATE.start_goodB2G_~data~1#1| 2147483647) (<= 0 .cse0) (<= |ULTIMATE.start_goodB2G_~funcPtr~1#1.offset| |#funAddr~CWE191_Integer_Underflow__int_fgets_predec_65b_goodB2GSink.offset|) (<= |ULTIMATE.start_goodG2B_~funcPtr~0#1.offset| |#funAddr~CWE191_Integer_Underflow__int_fgets_predec_65b_goodG2BSink.offset|) (<= .cse0 0) (<= |#funAddr~CWE191_Integer_Underflow__int_fgets_predec_65b_goodB2GSink.base| |ULTIMATE.start_goodB2G_~funcPtr~1#1.base|) (<= |#funAddr~CWE191_Integer_Underflow__int_fgets_predec_65b_goodB2GSink.offset| |ULTIMATE.start_goodB2G_~funcPtr~1#1.offset|) (<= |ULTIMATE.start_goodB2G_~funcPtr~1#1.base| |#funAddr~CWE191_Integer_Underflow__int_fgets_predec_65b_goodB2GSink.base|))) [2022-11-25 16:53:16,460 INFO L899 garLoopResultBuilder]: For program point L1571-1(lines 1565 1572) no Hoare annotation was computed. [2022-11-25 16:53:16,460 INFO L895 garLoopResultBuilder]: At program point L1594(line 1594) the Hoare annotation is: (let ((.cse0 (+ 2 |##fun~int~TO~VOID_#in~95#1|))) (or (not (<= |##fun~int~TO~VOID_#in~#fp#1.offset| |#funAddr~CWE191_Integer_Underflow__int_fgets_predec_65b_goodG2BSink.offset|)) (not (<= 0 .cse0)) (let ((.cse1 (+ 2 |##fun~int~TO~VOID_#~95#1|))) (and (<= .cse1 0) (<= (+ 2 |##fun~int~TO~VOID_CWE191_Integer_Underflow__int_fgets_predec_65b_goodG2BSink_~data#1|) 0) (<= 0 .cse1))) (not (<= .cse0 0)))) [2022-11-25 16:53:16,461 INFO L899 garLoopResultBuilder]: For program point L1594-1(lines 1589 1596) no Hoare annotation was computed. [2022-11-25 16:53:16,461 INFO L899 garLoopResultBuilder]: For program point L1592(line 1592) no Hoare annotation was computed. [2022-11-25 16:53:16,461 INFO L899 garLoopResultBuilder]: For program point L1592-1(line 1592) no Hoare annotation was computed. [2022-11-25 16:53:16,461 INFO L899 garLoopResultBuilder]: For program point ##fun~int~TO~VOIDErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1592) no Hoare annotation was computed. [2022-11-25 16:53:16,461 INFO L899 garLoopResultBuilder]: For program point ##fun~int~TO~VOIDErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1601) no Hoare annotation was computed. [2022-11-25 16:53:16,462 INFO L899 garLoopResultBuilder]: For program point ##fun~int~TO~VOIDEXIT(line -1) no Hoare annotation was computed. [2022-11-25 16:53:16,463 INFO L895 garLoopResultBuilder]: At program point L1607(line 1607) the Hoare annotation is: (let ((.cse0 (+ 2 |##fun~int~TO~VOID_#in~95#1|))) (or (not (<= |##fun~int~TO~VOID_#in~#fp#1.offset| |#funAddr~CWE191_Integer_Underflow__int_fgets_predec_65b_goodG2BSink.offset|)) (not (<= 0 .cse0)) (not (<= .cse0 0)))) [2022-11-25 16:53:16,463 INFO L899 garLoopResultBuilder]: For program point L1607-1(lines 1597 1609) no Hoare annotation was computed. [2022-11-25 16:53:16,464 INFO L902 garLoopResultBuilder]: At program point ##fun~int~TO~VOIDENTRY(line -1) the Hoare annotation is: true [2022-11-25 16:53:16,464 INFO L895 garLoopResultBuilder]: At program point L1603(line 1603) the Hoare annotation is: (let ((.cse0 (+ 2 |##fun~int~TO~VOID_#in~95#1|))) (or (not (<= |##fun~int~TO~VOID_#in~#fp#1.offset| |#funAddr~CWE191_Integer_Underflow__int_fgets_predec_65b_goodG2BSink.offset|)) (not (<= 0 .cse0)) (not (<= .cse0 0)))) [2022-11-25 16:53:16,464 INFO L899 garLoopResultBuilder]: For program point L1601(line 1601) no Hoare annotation was computed. [2022-11-25 16:53:16,464 INFO L899 garLoopResultBuilder]: For program point L1601-1(line 1601) no Hoare annotation was computed. [2022-11-25 16:53:16,465 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 16:53:16,465 INFO L899 garLoopResultBuilder]: For program point L1599(lines 1599 1608) no Hoare annotation was computed. [2022-11-25 16:53:16,465 INFO L899 garLoopResultBuilder]: For program point L-1-2(line -1) no Hoare annotation was computed. [2022-11-25 16:53:16,470 INFO L899 garLoopResultBuilder]: For program point ##fun~int~TO~VOIDErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1592) no Hoare annotation was computed. [2022-11-25 16:53:16,471 INFO L899 garLoopResultBuilder]: For program point ##fun~int~TO~VOIDErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1601) no Hoare annotation was computed. [2022-11-25 16:53:16,474 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-25 16:53:16,476 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:53:16,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:53:16 BoogieIcfgContainer [2022-11-25 16:53:16,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:53:16,490 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:53:16,490 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:53:16,490 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:53:16,491 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:53:14" (3/4) ... [2022-11-25 16:53:16,493 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 16:53:16,500 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-25 16:53:16,500 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-25 16:53:16,501 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~int~TO~VOID [2022-11-25 16:53:16,505 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-25 16:53:16,505 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-25 16:53:16,505 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-25 16:53:16,506 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 16:53:16,540 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21a1405e-b670-4b7b-b2a1-f9909c4a00d7/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 16:53:16,540 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:53:16,540 INFO L158 Benchmark]: Toolchain (without parser) took 4372.65ms. Allocated memory was 136.3MB in the beginning and 211.8MB in the end (delta: 75.5MB). Free memory was 71.1MB in the beginning and 121.8MB in the end (delta: -50.7MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2022-11-25 16:53:16,541 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 136.3MB. Free memory was 106.6MB in the beginning and 106.5MB in the end (delta: 88.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:53:16,541 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1494.60ms. Allocated memory was 136.3MB in the beginning and 211.8MB in the end (delta: 75.5MB). Free memory was 70.9MB in the beginning and 119.3MB in the end (delta: -48.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-25 16:53:16,542 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.54ms. Allocated memory is still 211.8MB. Free memory was 119.3MB in the beginning and 116.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 16:53:16,542 INFO L158 Benchmark]: Boogie Preprocessor took 61.57ms. Allocated memory is still 211.8MB. Free memory was 116.1MB in the beginning and 114.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:53:16,542 INFO L158 Benchmark]: RCFGBuilder took 521.86ms. Allocated memory is still 211.8MB. Free memory was 114.7MB in the beginning and 172.4MB in the end (delta: -57.8MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2022-11-25 16:53:16,543 INFO L158 Benchmark]: TraceAbstraction took 2142.64ms. Allocated memory is still 211.8MB. Free memory was 171.4MB in the beginning and 124.9MB in the end (delta: 46.5MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. [2022-11-25 16:53:16,543 INFO L158 Benchmark]: Witness Printer took 50.28ms. Allocated memory is still 211.8MB. Free memory was 124.9MB in the beginning and 121.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 16:53:16,545 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 136.3MB. Free memory was 106.6MB in the beginning and 106.5MB in the end (delta: 88.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1494.60ms. Allocated memory was 136.3MB in the beginning and 211.8MB in the end (delta: 75.5MB). Free memory was 70.9MB in the beginning and 119.3MB in the end (delta: -48.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.54ms. Allocated memory is still 211.8MB. Free memory was 119.3MB in the beginning and 116.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.57ms. Allocated memory is still 211.8MB. Free memory was 116.1MB in the beginning and 114.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 521.86ms. Allocated memory is still 211.8MB. Free memory was 114.7MB in the beginning and 172.4MB in the end (delta: -57.8MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2142.64ms. Allocated memory is still 211.8MB. Free memory was 171.4MB in the beginning and 124.9MB in the end (delta: 46.5MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. * Witness Printer took 50.28ms. Allocated memory is still 211.8MB. Free memory was 124.9MB in the beginning and 121.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 1601]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1601]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1592]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1592]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 111 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 99 mSDsluCounter, 724 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 511 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 102 IncrementalHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 213 mSDtfsCounter, 102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 28 PreInvPairs, 30 NumberOfFragments, 153 HoareAnnotationTreeSize, 28 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 231 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 5/5 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1581]: Loop Invariant Derived loop invariant: 0 <= data + 2 RESULT: Ultimate proved your program to be correct! [2022-11-25 16:53:16,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21a1405e-b670-4b7b-b2a1-f9909c4a00d7/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE