./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5004d713-a07d-4752-b8c9-7f45ad08e708/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5004d713-a07d-4752-b8c9-7f45ad08e708/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5004d713-a07d-4752-b8c9-7f45ad08e708/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5004d713-a07d-4752-b8c9-7f45ad08e708/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5004d713-a07d-4752-b8c9-7f45ad08e708/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5004d713-a07d-4752-b8c9-7f45ad08e708/bin/utaipan-6cKwYrpEi9 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a4abc9c7d2b4ebaa530e7f8482b8d5094b5275a859aa34c7c57019560ed01179 --- 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-6b4ec56 [2022-11-20 21:23:27,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 21:23:27,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 21:23:27,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 21:23:27,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 21:23:27,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 21:23:27,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 21:23:28,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 21:23:28,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 21:23:28,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 21:23:28,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 21:23:28,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 21:23:28,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 21:23:28,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 21:23:28,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 21:23:28,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 21:23:28,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 21:23:28,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 21:23:28,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 21:23:28,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 21:23:28,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 21:23:28,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 21:23:28,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 21:23:28,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 21:23:28,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 21:23:28,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 21:23:28,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 21:23:28,066 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 21:23:28,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 21:23:28,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 21:23:28,068 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 21:23:28,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 21:23:28,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 21:23:28,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 21:23:28,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 21:23:28,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 21:23:28,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 21:23:28,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 21:23:28,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 21:23:28,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 21:23:28,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 21:23:28,084 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5004d713-a07d-4752-b8c9-7f45ad08e708/bin/utaipan-6cKwYrpEi9/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-20 21:23:28,147 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 21:23:28,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 21:23:28,148 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 21:23:28,148 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 21:23:28,150 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 21:23:28,150 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 21:23:28,150 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 21:23:28,151 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 21:23:28,151 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 21:23:28,151 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 21:23:28,153 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 21:23:28,153 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 21:23:28,153 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 21:23:28,154 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 21:23:28,154 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 21:23:28,154 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 21:23:28,155 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 21:23:28,155 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 21:23:28,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 21:23:28,156 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 21:23:28,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 21:23:28,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 21:23:28,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 21:23:28,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 21:23:28,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 21:23:28,158 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 21:23:28,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 21:23:28,159 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 21:23:28,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 21:23:28,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 21:23:28,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 21:23:28,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:23:28,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 21:23:28,161 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 21:23:28,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 21:23:28,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 21:23:28,162 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 21:23:28,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 21:23:28,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 21:23:28,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 21:23:28,163 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_5004d713-a07d-4752-b8c9-7f45ad08e708/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5004d713-a07d-4752-b8c9-7f45ad08e708/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4abc9c7d2b4ebaa530e7f8482b8d5094b5275a859aa34c7c57019560ed01179 [2022-11-20 21:23:28,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 21:23:28,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 21:23:28,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 21:23:28,587 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 21:23:28,587 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 21:23:28,589 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5004d713-a07d-4752-b8c9-7f45ad08e708/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_good.i [2022-11-20 21:23:31,866 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 21:23:32,396 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 21:23:32,397 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5004d713-a07d-4752-b8c9-7f45ad08e708/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_good.i [2022-11-20 21:23:32,424 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5004d713-a07d-4752-b8c9-7f45ad08e708/bin/utaipan-6cKwYrpEi9/data/86b64842f/d3da500096544c0397f936f7a95c97c2/FLAG5beaddbe9 [2022-11-20 21:23:32,445 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5004d713-a07d-4752-b8c9-7f45ad08e708/bin/utaipan-6cKwYrpEi9/data/86b64842f/d3da500096544c0397f936f7a95c97c2 [2022-11-20 21:23:32,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 21:23:32,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 21:23:32,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 21:23:32,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 21:23:32,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 21:23:32,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:23:32" (1/1) ... [2022-11-20 21:23:32,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@563de9d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:23:32, skipping insertion in model container [2022-11-20 21:23:32,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:23:32" (1/1) ... [2022-11-20 21:23:32,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 21:23:32,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 21:23:32,961 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 21:23:33,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:23:33,718 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 21:23:33,758 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 21:23:33,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 21:23:34,036 INFO L208 MainTranslator]: Completed translation [2022-11-20 21:23:34,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:23:34 WrapperNode [2022-11-20 21:23:34,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 21:23:34,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 21:23:34,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 21:23:34,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 21:23:34,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:23:34" (1/1) ... [2022-11-20 21:23:34,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:23:34" (1/1) ... [2022-11-20 21:23:34,139 INFO L138 Inliner]: procedures = 502, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 87 [2022-11-20 21:23:34,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 21:23:34,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 21:23:34,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 21:23:34,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 21:23:34,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:23:34" (1/1) ... [2022-11-20 21:23:34,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:23:34" (1/1) ... [2022-11-20 21:23:34,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:23:34" (1/1) ... [2022-11-20 21:23:34,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:23:34" (1/1) ... [2022-11-20 21:23:34,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:23:34" (1/1) ... [2022-11-20 21:23:34,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:23:34" (1/1) ... [2022-11-20 21:23:34,185 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:23:34" (1/1) ... [2022-11-20 21:23:34,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:23:34" (1/1) ... [2022-11-20 21:23:34,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 21:23:34,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 21:23:34,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 21:23:34,208 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 21:23:34,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:23:34" (1/1) ... [2022-11-20 21:23:34,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 21:23:34,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5004d713-a07d-4752-b8c9-7f45ad08e708/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 21:23:34,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5004d713-a07d-4752-b8c9-7f45ad08e708/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 21:23:34,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5004d713-a07d-4752-b8c9-7f45ad08e708/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 21:23:34,329 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-20 21:23:34,330 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-20 21:23:34,330 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-20 21:23:34,331 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 21:23:34,331 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 21:23:34,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 21:23:34,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-20 21:23:34,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 21:23:34,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 21:23:34,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 21:23:34,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 21:23:34,333 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 21:23:34,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 21:23:34,584 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 21:23:34,586 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 21:23:34,824 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 21:23:34,858 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 21:23:34,859 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 21:23:34,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:23:34 BoogieIcfgContainer [2022-11-20 21:23:34,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 21:23:34,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 21:23:34,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 21:23:34,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 21:23:34,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:23:32" (1/3) ... [2022-11-20 21:23:34,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc112a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:23:34, skipping insertion in model container [2022-11-20 21:23:34,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:23:34" (2/3) ... [2022-11-20 21:23:34,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc112a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:23:34, skipping insertion in model container [2022-11-20 21:23:34,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:23:34" (3/3) ... [2022-11-20 21:23:34,871 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_16_good.i [2022-11-20 21:23:34,890 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 21:23:34,891 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-20 21:23:34,946 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 21:23:34,954 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=FINITE_AUTOMATA, 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;@7285f778, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 21:23:34,955 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-20 21:23:34,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 25 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-20 21:23:34,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 21:23:34,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:23:34,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:23:34,971 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 21:23:34,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:23:34,978 INFO L85 PathProgramCache]: Analyzing trace with hash -716296987, now seen corresponding path program 1 times [2022-11-20 21:23:34,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:23:34,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289159963] [2022-11-20 21:23:34,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:23:34,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:23:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:23:35,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:23:35,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:23:35,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289159963] [2022-11-20 21:23:35,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289159963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:23:35,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:23:35,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 21:23:35,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552061731] [2022-11-20 21:23:35,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:23:35,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 21:23:35,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:23:35,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 21:23:35,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 21:23:35,254 INFO L87 Difference]: Start difference. First operand has 30 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 25 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 21:23:35,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:23:35,319 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2022-11-20 21:23:35,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 21:23:35,322 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2022-11-20 21:23:35,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:23:35,334 INFO L225 Difference]: With dead ends: 53 [2022-11-20 21:23:35,334 INFO L226 Difference]: Without dead ends: 25 [2022-11-20 21:23:35,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 21:23:35,343 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 21:23:35,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 21:23:35,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-20 21:23:35,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-20 21:23:35,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 20 states have internal predecessors, (20), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 21:23:35,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-11-20 21:23:35,388 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 9 [2022-11-20 21:23:35,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:23:35,389 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-11-20 21:23:35,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 21:23:35,390 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-11-20 21:23:35,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 21:23:35,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:23:35,392 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:23:35,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 21:23:35,392 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 21:23:35,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:23:35,394 INFO L85 PathProgramCache]: Analyzing trace with hash 479252444, now seen corresponding path program 1 times [2022-11-20 21:23:35,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:23:35,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755431789] [2022-11-20 21:23:35,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:23:35,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:23:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:23:35,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:23:35,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:23:35,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755431789] [2022-11-20 21:23:35,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755431789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:23:35,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:23:35,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 21:23:35,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417167433] [2022-11-20 21:23:35,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:23:35,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:23:35,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:23:35,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:23:35,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:23:35,579 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 21:23:35,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:23:35,613 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2022-11-20 21:23:35,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:23:35,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-20 21:23:35,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:23:35,614 INFO L225 Difference]: With dead ends: 37 [2022-11-20 21:23:35,615 INFO L226 Difference]: Without dead ends: 27 [2022-11-20 21:23:35,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:23:35,617 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 6 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 21:23:35,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 35 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 21:23:35,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-20 21:23:35,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-20 21:23:35,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 21 states have internal predecessors, (22), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 21:23:35,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-11-20 21:23:35,624 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 11 [2022-11-20 21:23:35,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:23:35,624 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-11-20 21:23:35,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 21:23:35,625 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-11-20 21:23:35,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 21:23:35,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:23:35,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:23:35,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 21:23:35,626 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 21:23:35,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:23:35,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1971923955, now seen corresponding path program 1 times [2022-11-20 21:23:35,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:23:35,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199862239] [2022-11-20 21:23:35,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:23:35,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:23:35,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:23:35,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 21:23:35,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:23:35,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199862239] [2022-11-20 21:23:35,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199862239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:23:35,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:23:35,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 21:23:35,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806119407] [2022-11-20 21:23:35,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:23:35,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:23:35,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:23:35,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:23:35,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:23:35,730 INFO L87 Difference]: Start difference. First operand 27 states and 30 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 21:23:35,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:23:35,754 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2022-11-20 21:23:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:23:35,754 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-20 21:23:35,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:23:35,755 INFO L225 Difference]: With dead ends: 27 [2022-11-20 21:23:35,755 INFO L226 Difference]: Without dead ends: 26 [2022-11-20 21:23:35,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:23:35,757 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 8 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 21:23:35,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 23 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 21:23:35,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-20 21:23:35,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-20 21:23:35,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 20 states have internal predecessors, (21), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-20 21:23:35,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-11-20 21:23:35,765 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 12 [2022-11-20 21:23:35,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:23:35,765 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-11-20 21:23:35,766 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 21:23:35,766 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-11-20 21:23:35,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 21:23:35,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 21:23:35,767 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 21:23:35,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 21:23:35,768 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-20 21:23:35,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 21:23:35,768 INFO L85 PathProgramCache]: Analyzing trace with hash -962627370, now seen corresponding path program 1 times [2022-11-20 21:23:35,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 21:23:35,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235762149] [2022-11-20 21:23:35,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 21:23:35,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 21:23:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 21:23:35,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 21:23:35,852 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 21:23:35,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235762149] [2022-11-20 21:23:35,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235762149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 21:23:35,852 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 21:23:35,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 21:23:35,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463743805] [2022-11-20 21:23:35,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 21:23:35,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 21:23:35,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 21:23:35,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 21:23:35,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:23:35,855 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 21:23:35,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 21:23:35,877 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-11-20 21:23:35,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 21:23:35,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2022-11-20 21:23:35,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 21:23:35,883 INFO L225 Difference]: With dead ends: 26 [2022-11-20 21:23:35,883 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 21:23:35,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 21:23:35,885 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 1 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 21:23:35,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 37 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 21:23:35,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 21:23:35,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 21:23:35,889 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) [2022-11-20 21:23:35,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 21:23:35,892 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2022-11-20 21:23:35,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 21:23:35,893 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 21:23:35,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-20 21:23:35,893 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 21:23:35,893 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 21:23:35,896 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-20 21:23:35,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-20 21:23:35,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-20 21:23:35,897 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-20 21:23:35,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 21:23:35,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 21:23:35,962 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-20 21:23:35,962 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-20 21:23:35,964 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-20 21:23:35,964 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-20 21:23:35,964 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1594) no Hoare annotation was computed. [2022-11-20 21:23:35,965 INFO L902 garLoopResultBuilder]: At program point L1596(line 1596) the Hoare annotation is: true [2022-11-20 21:23:35,965 INFO L902 garLoopResultBuilder]: At program point L1609(line 1609) the Hoare annotation is: true [2022-11-20 21:23:35,965 INFO L899 garLoopResultBuilder]: For program point L1609-1(line 1609) no Hoare annotation was computed. [2022-11-20 21:23:35,965 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1571) no Hoare annotation was computed. [2022-11-20 21:23:35,965 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 21:23:35,966 INFO L899 garLoopResultBuilder]: For program point L1556(lines 1556 1563) no Hoare annotation was computed. [2022-11-20 21:23:35,966 INFO L895 garLoopResultBuilder]: At program point L1552loopEntry(lines 1552 1566) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483646)) [2022-11-20 21:23:35,966 INFO L895 garLoopResultBuilder]: At program point L1552-2(lines 1549 1581) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) [2022-11-20 21:23:35,966 INFO L899 garLoopResultBuilder]: For program point L1548(lines 1548 1581) no Hoare annotation was computed. [2022-11-20 21:23:35,966 INFO L895 garLoopResultBuilder]: At program point L1577(line 1577) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) [2022-11-20 21:23:35,967 INFO L895 garLoopResultBuilder]: At program point L1573(line 1573) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) [2022-11-20 21:23:35,967 INFO L899 garLoopResultBuilder]: For program point L1569(lines 1569 1578) no Hoare annotation was computed. [2022-11-20 21:23:35,967 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1571) no Hoare annotation was computed. [2022-11-20 21:23:35,968 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 21:23:35,968 INFO L899 garLoopResultBuilder]: For program point L1594(line 1594) no Hoare annotation was computed. [2022-11-20 21:23:35,971 INFO L899 garLoopResultBuilder]: For program point L1594-1(line 1594) no Hoare annotation was computed. [2022-11-20 21:23:35,972 INFO L895 garLoopResultBuilder]: At program point L1586-2(lines 1583 1600) the Hoare annotation is: (and (= |ULTIMATE.start_goodG2B_~data~1#1| 2) (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648))) [2022-11-20 21:23:35,972 INFO L899 garLoopResultBuilder]: For program point L1582(lines 1582 1600) no Hoare annotation was computed. [2022-11-20 21:23:35,972 INFO L902 garLoopResultBuilder]: At program point L1611(line 1611) the Hoare annotation is: true [2022-11-20 21:23:35,976 INFO L902 garLoopResultBuilder]: At program point L1611-1(line 1611) the Hoare annotation is: true [2022-11-20 21:23:35,976 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1594) no Hoare annotation was computed. [2022-11-20 21:23:35,977 INFO L895 garLoopResultBuilder]: At program point L1562(line 1562) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_goodB2G_~data~0#1| 2147483648)) (<= |ULTIMATE.start_goodB2G_~data~0#1| 2147483646)) [2022-11-20 21:23:35,977 INFO L899 garLoopResultBuilder]: For program point L1562-1(lines 1556 1563) no Hoare annotation was computed. [2022-11-20 21:23:35,978 INFO L899 garLoopResultBuilder]: For program point L1571(line 1571) no Hoare annotation was computed. [2022-11-20 21:23:35,982 INFO L899 garLoopResultBuilder]: For program point L1571-1(line 1571) no Hoare annotation was computed. [2022-11-20 21:23:35,985 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-20 21:23:35,987 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 21:23:36,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:23:36 BoogieIcfgContainer [2022-11-20 21:23:36,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 21:23:36,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 21:23:36,008 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 21:23:36,008 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 21:23:36,009 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:23:34" (3/4) ... [2022-11-20 21:23:36,013 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 21:23:36,019 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-20 21:23:36,019 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-20 21:23:36,029 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-20 21:23:36,030 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-20 21:23:36,030 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 21:23:36,030 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 21:23:36,088 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5004d713-a07d-4752-b8c9-7f45ad08e708/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 21:23:36,088 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 21:23:36,088 INFO L158 Benchmark]: Toolchain (without parser) took 3635.63ms. Allocated memory is still 161.5MB. Free memory was 126.1MB in the beginning and 56.2MB in the end (delta: 69.8MB). Peak memory consumption was 73.0MB. Max. memory is 16.1GB. [2022-11-20 21:23:36,089 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 161.5MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 21:23:36,089 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1581.63ms. Allocated memory is still 161.5MB. Free memory was 125.9MB in the beginning and 64.2MB in the end (delta: 61.7MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-20 21:23:36,089 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.57ms. Allocated memory is still 161.5MB. Free memory was 64.2MB in the beginning and 61.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:23:36,090 INFO L158 Benchmark]: Boogie Preprocessor took 65.98ms. Allocated memory is still 161.5MB. Free memory was 61.3MB in the beginning and 59.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 21:23:36,090 INFO L158 Benchmark]: RCFGBuilder took 654.52ms. Allocated memory is still 161.5MB. Free memory was 59.6MB in the beginning and 119.2MB in the end (delta: -59.6MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-11-20 21:23:36,095 INFO L158 Benchmark]: TraceAbstraction took 1143.42ms. Allocated memory is still 161.5MB. Free memory was 118.3MB in the beginning and 59.6MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2022-11-20 21:23:36,095 INFO L158 Benchmark]: Witness Printer took 80.16ms. Allocated memory is still 161.5MB. Free memory was 59.6MB in the beginning and 56.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 21:23:36,097 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 161.5MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1581.63ms. Allocated memory is still 161.5MB. Free memory was 125.9MB in the beginning and 64.2MB in the end (delta: 61.7MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.57ms. Allocated memory is still 161.5MB. Free memory was 64.2MB in the beginning and 61.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.98ms. Allocated memory is still 161.5MB. Free memory was 61.3MB in the beginning and 59.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 654.52ms. Allocated memory is still 161.5MB. Free memory was 59.6MB in the beginning and 119.2MB in the end (delta: -59.6MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1143.42ms. Allocated memory is still 161.5MB. Free memory was 118.3MB in the beginning and 59.6MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Witness Printer took 80.16ms. Allocated memory is still 161.5MB. Free memory was 59.6MB in the beginning and 56.2MB in the end (delta: 3.4MB). 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: 1571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1594]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1594]: 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 3 procedures, 30 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 124 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 88 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 21 PreInvPairs, 29 NumberOfFragments, 48 HoareAnnotationTreeSize, 21 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 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: 1611]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1552]: Loop Invariant Derived loop invariant: 0 <= data + 2147483648 && data <= 2147483646 - InvariantResult [Line: 1549]: Loop Invariant Derived loop invariant: 0 <= data + 2147483648 - InvariantResult [Line: 1583]: Loop Invariant Derived loop invariant: data == 2 && 0 <= data + 2147483648 RESULT: Ultimate proved your program to be correct! [2022-11-20 21:23:36,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5004d713-a07d-4752-b8c9-7f45ad08e708/bin/utaipan-6cKwYrpEi9/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