./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_d7f7d88f-b97c-4e48-b11a-a314b626dc8e/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f7d88f-b97c-4e48-b11a-a314b626dc8e/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f7d88f-b97c-4e48-b11a-a314b626dc8e/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f7d88f-b97c-4e48-b11a-a314b626dc8e/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f7d88f-b97c-4e48-b11a-a314b626dc8e/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f7d88f-b97c-4e48-b11a-a314b626dc8e/bin/utaipan-g80aRyZoba --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 978380a0d9a0d4e74d9eb1d798048831cbc3b914c012cf29358537144662fb8e --- 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-b5237d8 [2022-11-22 01:42:35,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:42:35,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:42:35,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:42:35,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:42:35,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:42:35,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:42:35,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:42:35,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:42:35,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:42:35,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:42:35,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:42:35,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:42:35,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:42:35,206 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:42:35,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:42:35,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:42:35,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:42:35,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:42:35,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:42:35,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:42:35,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:42:35,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:42:35,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:42:35,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:42:35,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:42:35,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:42:35,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:42:35,242 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:42:35,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:42:35,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:42:35,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:42:35,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:42:35,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:42:35,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:42:35,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:42:35,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:42:35,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:42:35,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:42:35,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:42:35,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:42:35,254 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f7d88f-b97c-4e48-b11a-a314b626dc8e/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-22 01:42:35,295 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:42:35,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:42:35,296 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:42:35,296 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:42:35,297 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:42:35,297 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:42:35,297 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:42:35,298 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:42:35,298 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:42:35,298 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:42:35,299 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:42:35,299 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:42:35,300 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:42:35,300 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:42:35,300 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:42:35,300 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:42:35,301 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:42:35,301 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:42:35,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:42:35,302 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:42:35,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:42:35,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:42:35,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:42:35,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:42:35,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:42:35,304 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:42:35,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:42:35,305 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:42:35,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:42:35,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:42:35,306 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:42:35,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:42:35,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:42:35,307 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:42:35,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:42:35,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:42:35,307 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:42:35,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:42:35,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:42:35,308 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:42:35,308 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_d7f7d88f-b97c-4e48-b11a-a314b626dc8e/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f7d88f-b97c-4e48-b11a-a314b626dc8e/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 978380a0d9a0d4e74d9eb1d798048831cbc3b914c012cf29358537144662fb8e [2022-11-22 01:42:35,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:42:35,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:42:35,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:42:35,696 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:42:35,697 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:42:35,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f7d88f-b97c-4e48-b11a-a314b626dc8e/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_good.i [2022-11-22 01:42:38,660 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:42:39,047 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:42:39,059 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f7d88f-b97c-4e48-b11a-a314b626dc8e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_31_good.i [2022-11-22 01:42:39,082 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f7d88f-b97c-4e48-b11a-a314b626dc8e/bin/utaipan-g80aRyZoba/data/7ba8bf895/9292da8110a54f91a8d74463b08369b4/FLAG7e91d8d7b [2022-11-22 01:42:39,103 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f7d88f-b97c-4e48-b11a-a314b626dc8e/bin/utaipan-g80aRyZoba/data/7ba8bf895/9292da8110a54f91a8d74463b08369b4 [2022-11-22 01:42:39,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:42:39,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:42:39,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:42:39,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:42:39,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:42:39,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:42:39" (1/1) ... [2022-11-22 01:42:39,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb18435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:39, skipping insertion in model container [2022-11-22 01:42:39,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:42:39" (1/1) ... [2022-11-22 01:42:39,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:42:39,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:42:39,631 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 01:42:40,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:42:40,255 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:42:40,287 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 01:42:40,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:42:40,550 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:42:40,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:40 WrapperNode [2022-11-22 01:42:40,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:42:40,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:42:40,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:42:40,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:42:40,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:40" (1/1) ... [2022-11-22 01:42:40,587 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:40" (1/1) ... [2022-11-22 01:42:40,611 INFO L138 Inliner]: procedures = 501, calls = 59, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2022-11-22 01:42:40,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:42:40,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:42:40,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:42:40,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:42:40,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:40" (1/1) ... [2022-11-22 01:42:40,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:40" (1/1) ... [2022-11-22 01:42:40,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:40" (1/1) ... [2022-11-22 01:42:40,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:40" (1/1) ... [2022-11-22 01:42:40,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:40" (1/1) ... [2022-11-22 01:42:40,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:40" (1/1) ... [2022-11-22 01:42:40,664 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:40" (1/1) ... [2022-11-22 01:42:40,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:40" (1/1) ... [2022-11-22 01:42:40,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:42:40,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:42:40,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:42:40,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:42:40,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:40" (1/1) ... [2022-11-22 01:42:40,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:42:40,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f7d88f-b97c-4e48-b11a-a314b626dc8e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:42:40,705 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f7d88f-b97c-4e48-b11a-a314b626dc8e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:42:40,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f7d88f-b97c-4e48-b11a-a314b626dc8e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:42:40,765 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-22 01:42:40,765 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-22 01:42:40,765 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-22 01:42:40,765 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-22 01:42:40,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:42:40,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:42:40,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:42:40,766 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-22 01:42:40,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:42:41,012 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:42:41,014 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:42:41,204 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:42:41,296 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:42:41,296 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:42:41,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:42:41 BoogieIcfgContainer [2022-11-22 01:42:41,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:42:41,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:42:41,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:42:41,305 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:42:41,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:42:39" (1/3) ... [2022-11-22 01:42:41,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6edef55e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:42:41, skipping insertion in model container [2022-11-22 01:42:41,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:42:40" (2/3) ... [2022-11-22 01:42:41,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6edef55e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:42:41, skipping insertion in model container [2022-11-22 01:42:41,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:42:41" (3/3) ... [2022-11-22 01:42:41,314 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_31_good.i [2022-11-22 01:42:41,335 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:42:41,336 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-22 01:42:41,380 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:42:41,387 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;@1106d692, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:42:41,388 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-22 01:42:41,391 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 17 states have internal predecessors, (17), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-22 01:42:41,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:42:41,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:42:41,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 01:42:41,398 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)] === [2022-11-22 01:42:41,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:42:41,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1585189019, now seen corresponding path program 1 times [2022-11-22 01:42:41,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:42:41,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338947172] [2022-11-22 01:42:41,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:41,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:42:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:41,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:42:41,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:42:41,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338947172] [2022-11-22 01:42:41,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338947172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:42:41,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:42:41,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:42:41,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461967066] [2022-11-22 01:42:41,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:42:41,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:42:41,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:42:41,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:42:41,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:42:41,757 INFO L87 Difference]: Start difference. First operand has 24 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 17 states have internal predecessors, (17), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-22 01:42:41,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:42:41,814 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2022-11-22 01:42:41,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:42:41,816 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 6 [2022-11-22 01:42:41,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:42:41,822 INFO L225 Difference]: With dead ends: 24 [2022-11-22 01:42:41,822 INFO L226 Difference]: Without dead ends: 17 [2022-11-22 01:42:41,825 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 [2022-11-22 01:42:41,830 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 11 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:42:41,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 23 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:42:41,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-22 01:42:41,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-22 01:42:41,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 10 states have (on average 1.2) internal successors, (12), 12 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:42:41,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2022-11-22 01:42:41,872 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 6 [2022-11-22 01:42:41,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:42:41,874 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2022-11-22 01:42:41,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-22 01:42:41,874 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2022-11-22 01:42:41,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:42:41,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:42:41,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:42:41,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:42:41,876 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:42:41,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:42:41,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1896219285, now seen corresponding path program 1 times [2022-11-22 01:42:41,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:42:41,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668804387] [2022-11-22 01:42:41,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:41,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:42:41,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:42,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:42:42,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:42:42,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668804387] [2022-11-22 01:42:42,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668804387] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:42:42,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:42:42,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:42:42,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985022814] [2022-11-22 01:42:42,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:42:42,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:42:42,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:42:42,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:42:42,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:42:42,085 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-22 01:42:42,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:42:42,115 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2022-11-22 01:42:42,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:42:42,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 7 [2022-11-22 01:42:42,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:42:42,117 INFO L225 Difference]: With dead ends: 17 [2022-11-22 01:42:42,117 INFO L226 Difference]: Without dead ends: 16 [2022-11-22 01:42:42,120 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 [2022-11-22 01:42:42,122 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:42:42,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:42:42,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-22 01:42:42,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-22 01:42:42,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:42:42,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2022-11-22 01:42:42,131 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 7 [2022-11-22 01:42:42,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:42:42,132 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2022-11-22 01:42:42,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-22 01:42:42,133 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2022-11-22 01:42:42,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 01:42:42,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:42:42,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:42:42,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:42:42,138 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:42:42,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:42:42,140 INFO L85 PathProgramCache]: Analyzing trace with hash -465012474, now seen corresponding path program 1 times [2022-11-22 01:42:42,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:42:42,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769299140] [2022-11-22 01:42:42,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:42,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:42:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:42,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:42:42,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:42:42,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769299140] [2022-11-22 01:42:42,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769299140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:42:42,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:42:42,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:42:42,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105906580] [2022-11-22 01:42:42,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:42:42,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:42:42,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:42:42,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:42:42,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:42:42,440 INFO L87 Difference]: Start difference. First operand 16 states and 15 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, (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) [2022-11-22 01:42:42,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:42:42,462 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2022-11-22 01:42:42,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:42:42,462 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, (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 13 [2022-11-22 01:42:42,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:42:42,464 INFO L225 Difference]: With dead ends: 16 [2022-11-22 01:42:42,464 INFO L226 Difference]: Without dead ends: 15 [2022-11-22 01:42:42,465 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 [2022-11-22 01:42:42,473 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:42:42,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 14 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:42:42,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-22 01:42:42,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-22 01:42:42,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.0) internal successors, (10), 10 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:42:42,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2022-11-22 01:42:42,484 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 13 [2022-11-22 01:42:42,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:42:42,484 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2022-11-22 01:42:42,485 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, (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) [2022-11-22 01:42:42,485 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2022-11-22 01:42:42,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 01:42:42,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:42:42,487 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:42:42,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:42:42,488 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:42:42,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:42:42,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1530484741, now seen corresponding path program 1 times [2022-11-22 01:42:42,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:42:42,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141464882] [2022-11-22 01:42:42,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:42:42,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:42:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:42:42,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:42:42,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:42:42,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141464882] [2022-11-22 01:42:42,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141464882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:42:42,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:42:42,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:42:42,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109224025] [2022-11-22 01:42:42,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:42:42,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:42:42,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:42:42,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:42:42,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:42:42,608 INFO L87 Difference]: Start difference. First operand 15 states and 14 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, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 01:42:42,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:42:42,629 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2022-11-22 01:42:42,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:42:42,630 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, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2022-11-22 01:42:42,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:42:42,631 INFO L225 Difference]: With dead ends: 15 [2022-11-22 01:42:42,631 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 01:42:42,632 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 [2022-11-22 01:42:42,639 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 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 [2022-11-22 01:42:42,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:42:42,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 01:42:42,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 01:42:42,643 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) [2022-11-22 01:42:42,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 01:42:42,643 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-22 01:42:42,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:42:42,644 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 01:42:42,644 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, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 01:42:42,644 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 01:42:42,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 01:42:42,647 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-22 01:42:42,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-22 01:42:42,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-22 01:42:42,648 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-22 01:42:42,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:42:42,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 01:42:42,674 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-22 01:42:42,674 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-22 01:42:42,675 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-22 01:42:42,675 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-22 01:42:42,675 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1557) no Hoare annotation was computed. [2022-11-22 01:42:42,675 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 01:42:42,675 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1573) no Hoare annotation was computed. [2022-11-22 01:42:42,676 INFO L895 garLoopResultBuilder]: At program point L1559(line 1559) the Hoare annotation is: (<= (+ |ULTIMATE.start_goodG2B_~data~1#1| 2) 0) [2022-11-22 01:42:42,676 INFO L899 garLoopResultBuilder]: For program point L1559-1(lines 1548 1562) no Hoare annotation was computed. [2022-11-22 01:42:42,676 INFO L899 garLoopResultBuilder]: For program point L1557(line 1557) no Hoare annotation was computed. [2022-11-22 01:42:42,676 INFO L899 garLoopResultBuilder]: For program point L1557-1(line 1557) no Hoare annotation was computed. [2022-11-22 01:42:42,676 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1557) no Hoare annotation was computed. [2022-11-22 01:42:42,677 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1573) no Hoare annotation was computed. [2022-11-22 01:42:42,677 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 01:42:42,677 INFO L895 garLoopResultBuilder]: At program point L1593(line 1593) the Hoare annotation is: (<= (+ |ULTIMATE.start_goodG2B_~data~1#1| 2) 0) [2022-11-22 01:42:42,677 INFO L895 garLoopResultBuilder]: At program point L1593-1(line 1593) the Hoare annotation is: (<= (+ |ULTIMATE.start_goodG2B_~data~1#1| 2) 0) [2022-11-22 01:42:42,678 INFO L902 garLoopResultBuilder]: At program point L1591(line 1591) the Hoare annotation is: true [2022-11-22 01:42:42,678 INFO L899 garLoopResultBuilder]: For program point L1591-1(line 1591) no Hoare annotation was computed. [2022-11-22 01:42:42,678 INFO L895 garLoopResultBuilder]: At program point L1579(line 1579) the Hoare annotation is: (<= (+ |ULTIMATE.start_goodG2B_~data~1#1| 2) 0) [2022-11-22 01:42:42,678 INFO L899 garLoopResultBuilder]: For program point L1579-1(lines 1563 1582) no Hoare annotation was computed. [2022-11-22 01:42:42,678 INFO L895 garLoopResultBuilder]: At program point L1575(line 1575) the Hoare annotation is: (<= (+ |ULTIMATE.start_goodG2B_~data~1#1| 2) 0) [2022-11-22 01:42:42,679 INFO L899 garLoopResultBuilder]: For program point L1573(line 1573) no Hoare annotation was computed. [2022-11-22 01:42:42,680 INFO L899 garLoopResultBuilder]: For program point L1573-1(line 1573) no Hoare annotation was computed. [2022-11-22 01:42:42,680 INFO L899 garLoopResultBuilder]: For program point L1571(lines 1571 1580) no Hoare annotation was computed. [2022-11-22 01:42:42,686 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-22 01:42:42,689 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:42:42,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:42:42 BoogieIcfgContainer [2022-11-22 01:42:42,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:42:42,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:42:42,703 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:42:42,704 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:42:42,704 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:42:41" (3/4) ... [2022-11-22 01:42:42,707 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 01:42:42,714 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-22 01:42:42,714 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-22 01:42:42,721 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-22 01:42:42,721 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-22 01:42:42,721 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 01:42:42,722 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 01:42:42,768 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f7d88f-b97c-4e48-b11a-a314b626dc8e/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:42:42,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:42:42,769 INFO L158 Benchmark]: Toolchain (without parser) took 3659.23ms. Allocated memory is still 144.7MB. Free memory was 109.6MB in the beginning and 65.1MB in the end (delta: 44.5MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2022-11-22 01:42:42,769 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 93.1MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:42:42,770 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1436.69ms. Allocated memory is still 144.7MB. Free memory was 109.0MB in the beginning and 107.9MB in the end (delta: 1.1MB). Peak memory consumption was 65.3MB. Max. memory is 16.1GB. [2022-11-22 01:42:42,770 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.61ms. Allocated memory is still 144.7MB. Free memory was 107.2MB in the beginning and 104.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 01:42:42,770 INFO L158 Benchmark]: Boogie Preprocessor took 56.10ms. Allocated memory is still 144.7MB. Free memory was 104.4MB in the beginning and 103.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:42:42,771 INFO L158 Benchmark]: RCFGBuilder took 629.96ms. Allocated memory is still 144.7MB. Free memory was 103.0MB in the beginning and 83.4MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-22 01:42:42,771 INFO L158 Benchmark]: TraceAbstraction took 1401.55ms. Allocated memory is still 144.7MB. Free memory was 82.7MB in the beginning and 68.3MB in the end (delta: 14.4MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2022-11-22 01:42:42,771 INFO L158 Benchmark]: Witness Printer took 65.23ms. Allocated memory is still 144.7MB. Free memory was 68.3MB in the beginning and 65.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 01:42:42,775 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 93.1MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1436.69ms. Allocated memory is still 144.7MB. Free memory was 109.0MB in the beginning and 107.9MB in the end (delta: 1.1MB). Peak memory consumption was 65.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.61ms. Allocated memory is still 144.7MB. Free memory was 107.2MB in the beginning and 104.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.10ms. Allocated memory is still 144.7MB. Free memory was 104.4MB in the beginning and 103.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 629.96ms. Allocated memory is still 144.7MB. Free memory was 103.0MB in the beginning and 83.4MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1401.55ms. Allocated memory is still 144.7MB. Free memory was 82.7MB in the beginning and 68.3MB in the end (delta: 14.4MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * Witness Printer took 65.23ms. Allocated memory is still 144.7MB. Free memory was 68.3MB in the beginning and 65.1MB in the end (delta: 3.2MB). 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: 1557]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1557]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1573]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1573]: 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, 24 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 69 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 41 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 8 LocationsWithAnnotation, 11 PreInvPairs, 11 NumberOfFragments, 28 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 62 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1593]: Loop Invariant Derived loop invariant: data + 2 <= 0 RESULT: Ultimate proved your program to be correct! [2022-11-22 01:42:42,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f7d88f-b97c-4e48-b11a-a314b626dc8e/bin/utaipan-g80aRyZoba/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