./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_22_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f116fc-2987-423a-ac37-2e2e239efb56/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f116fc-2987-423a-ac37-2e2e239efb56/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f116fc-2987-423a-ac37-2e2e239efb56/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f116fc-2987-423a-ac37-2e2e239efb56/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_22_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f116fc-2987-423a-ac37-2e2e239efb56/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f116fc-2987-423a-ac37-2e2e239efb56/bin/utaipan-gh47qXpMRh --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 25704ea773ecab79432b7d24ff1d59fc5e19a5c522eca48ac1cb979b41afca50 --- 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-2329fc7 [2022-12-14 12:14:42,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:14:42,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:14:42,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:14:42,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:14:42,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:14:42,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:14:42,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:14:42,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:14:42,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:14:42,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:14:42,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:14:42,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:14:42,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:14:42,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:14:42,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:14:42,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:14:42,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:14:42,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:14:42,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:14:42,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:14:42,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:14:42,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:14:42,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:14:42,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:14:42,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:14:42,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:14:42,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:14:42,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:14:42,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:14:42,449 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:14:42,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:14:42,450 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:14:42,451 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:14:42,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:14:42,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:14:42,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:14:42,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:14:42,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:14:42,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:14:42,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:14:42,456 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f116fc-2987-423a-ac37-2e2e239efb56/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 12:14:42,492 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:14:42,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:14:42,493 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:14:42,493 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:14:42,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:14:42,494 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:14:42,494 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:14:42,494 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:14:42,494 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:14:42,494 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:14:42,495 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:14:42,495 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:14:42,495 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:14:42,495 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:14:42,495 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:14:42,496 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:14:42,496 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:14:42,496 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:14:42,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:14:42,497 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 12:14:42,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:14:42,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:14:42,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:14:42,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:14:42,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:14:42,498 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 12:14:42,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:14:42,498 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:14:42,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:14:42,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:14:42,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:14:42,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:14:42,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:14:42,499 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:14:42,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:14:42,499 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:14:42,499 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:14:42,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:14:42,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:14:42,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:14:42,500 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_81f116fc-2987-423a-ac37-2e2e239efb56/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f116fc-2987-423a-ac37-2e2e239efb56/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25704ea773ecab79432b7d24ff1d59fc5e19a5c522eca48ac1cb979b41afca50 [2022-12-14 12:14:42,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:14:42,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:14:42,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:14:42,715 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:14:42,716 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:14:42,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f116fc-2987-423a-ac37-2e2e239efb56/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_22_good.i [2022-12-14 12:14:45,378 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:14:45,583 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:14:45,583 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f116fc-2987-423a-ac37-2e2e239efb56/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_22_good.i [2022-12-14 12:14:45,597 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f116fc-2987-423a-ac37-2e2e239efb56/bin/utaipan-gh47qXpMRh/data/d3e68cf2b/2c2cde066bc545958d83f17e78860041/FLAGc43b1d5b9 [2022-12-14 12:14:45,608 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f116fc-2987-423a-ac37-2e2e239efb56/bin/utaipan-gh47qXpMRh/data/d3e68cf2b/2c2cde066bc545958d83f17e78860041 [2022-12-14 12:14:45,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:14:45,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:14:45,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:14:45,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:14:45,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:14:45,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:14:45" (1/1) ... [2022-12-14 12:14:45,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29de3ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:45, skipping insertion in model container [2022-12-14 12:14:45,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:14:45" (1/1) ... [2022-12-14 12:14:45,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:14:45,652 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:14:45,877 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 12:14:46,175 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:14:46,179 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:14:46,181 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:14:46,183 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:14:46,183 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:14:46,207 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 12:14:46,212 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:14:46,219 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:14:46,231 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 12:14:46,258 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:14:46,260 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:14:46,260 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:14:46,262 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:14:46,262 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:14:46,267 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 12:14:46,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:14:46,368 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:14:46,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:46 WrapperNode [2022-12-14 12:14:46,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:14:46,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:14:46,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:14:46,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:14:46,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:46" (1/1) ... [2022-12-14 12:14:46,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:46" (1/1) ... [2022-12-14 12:14:46,410 INFO L138 Inliner]: procedures = 505, calls = 68, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 119 [2022-12-14 12:14:46,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:14:46,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:14:46,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:14:46,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:14:46,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:46" (1/1) ... [2022-12-14 12:14:46,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:46" (1/1) ... [2022-12-14 12:14:46,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:46" (1/1) ... [2022-12-14 12:14:46,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:46" (1/1) ... [2022-12-14 12:14:46,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:46" (1/1) ... [2022-12-14 12:14:46,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:46" (1/1) ... [2022-12-14 12:14:46,429 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:46" (1/1) ... [2022-12-14 12:14:46,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:46" (1/1) ... [2022-12-14 12:14:46,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:14:46,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:14:46,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:14:46,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:14:46,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:46" (1/1) ... [2022-12-14 12:14:46,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:14:46,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f116fc-2987-423a-ac37-2e2e239efb56/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:14:46,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f116fc-2987-423a-ac37-2e2e239efb56/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:14:46,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f116fc-2987-423a-ac37-2e2e239efb56/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:14:46,486 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-12-14 12:14:46,486 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-12-14 12:14:46,486 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 12:14:46,486 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 12:14:46,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:14:46,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:14:46,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:14:46,487 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 12:14:46,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:14:46,593 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:14:46,595 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:14:46,821 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:14:46,910 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:14:46,911 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 12:14:46,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:14:46 BoogieIcfgContainer [2022-12-14 12:14:46,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:14:46,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:14:46,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:14:46,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:14:46,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:14:45" (1/3) ... [2022-12-14 12:14:46,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca857d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:14:46, skipping insertion in model container [2022-12-14 12:14:46,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:14:46" (2/3) ... [2022-12-14 12:14:46,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca857d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:14:46, skipping insertion in model container [2022-12-14 12:14:46,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:14:46" (3/3) ... [2022-12-14 12:14:46,922 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_22_good.i [2022-12-14 12:14:46,941 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:14:46,941 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 12:14:46,988 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:14:46,993 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;@d5b695, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:14:46,993 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 12:14:46,997 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 30 states have internal predecessors, (30), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 12:14:47,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 12:14:47,005 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:14:47,006 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:14:47,006 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:14:47,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:14:47,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1075426067, now seen corresponding path program 1 times [2022-12-14 12:14:47,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:14:47,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76499875] [2022-12-14 12:14:47,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:14:47,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:14:47,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:14:47,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:14:47,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:14:47,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76499875] [2022-12-14 12:14:47,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76499875] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:14:47,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:14:47,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:14:47,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102562318] [2022-12-14 12:14:47,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:14:47,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:14:47,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:14:47,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:14:47,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:14:47,272 INFO L87 Difference]: Start difference. First operand has 36 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 30 states have internal predecessors, (30), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-12-14 12:14:47,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:14:47,319 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2022-12-14 12:14:47,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:14:47,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 8 [2022-12-14 12:14:47,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:14:47,328 INFO L225 Difference]: With dead ends: 36 [2022-12-14 12:14:47,328 INFO L226 Difference]: Without dead ends: 30 [2022-12-14 12:14:47,330 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 [2022-12-14 12:14:47,333 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 2 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:14:47,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 66 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:14:47,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-12-14 12:14:47,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-12-14 12:14:47,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 25 states have internal predecessors, (25), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 12:14:47,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2022-12-14 12:14:47,362 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 8 [2022-12-14 12:14:47,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:14:47,363 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2022-12-14 12:14:47,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-12-14 12:14:47,363 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2022-12-14 12:14:47,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 12:14:47,364 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:14:47,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:14:47,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:14:47,365 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:14:47,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:14:47,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1021530227, now seen corresponding path program 1 times [2022-12-14 12:14:47,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:14:47,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499111604] [2022-12-14 12:14:47,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:14:47,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:14:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:14:47,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 12:14:47,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:14:47,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499111604] [2022-12-14 12:14:47,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499111604] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:14:47,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:14:47,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:14:47,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868191861] [2022-12-14 12:14:47,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:14:47,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:14:47,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:14:47,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:14:47,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:14:47,528 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-12-14 12:14:47,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:14:47,554 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2022-12-14 12:14:47,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:14:47,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2022-12-14 12:14:47,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:14:47,555 INFO L225 Difference]: With dead ends: 30 [2022-12-14 12:14:47,555 INFO L226 Difference]: Without dead ends: 29 [2022-12-14 12:14:47,556 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 [2022-12-14 12:14:47,556 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 16 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:14:47,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 33 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:14:47,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-14 12:14:47,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-12-14 12:14:47,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 17 states have (on average 1.411764705882353) internal successors, (24), 24 states have internal predecessors, (24), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-14 12:14:47,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2022-12-14 12:14:47,562 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 9 [2022-12-14 12:14:47,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:14:47,563 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2022-12-14 12:14:47,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2022-12-14 12:14:47,563 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2022-12-14 12:14:47,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 12:14:47,564 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:14:47,564 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:14:47,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:14:47,565 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:14:47,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:14:47,565 INFO L85 PathProgramCache]: Analyzing trace with hash 389917780, now seen corresponding path program 1 times [2022-12-14 12:14:47,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:14:47,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434732825] [2022-12-14 12:14:47,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:14:47,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:14:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:14:47,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 12:14:47,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:14:47,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434732825] [2022-12-14 12:14:47,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434732825] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:14:47,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:14:47,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:14:47,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939682827] [2022-12-14 12:14:47,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:14:47,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:14:47,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:14:47,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:14:47,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:14:47,639 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 12:14:47,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:14:47,661 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2022-12-14 12:14:47,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:14:47,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2022-12-14 12:14:47,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:14:47,663 INFO L225 Difference]: With dead ends: 48 [2022-12-14 12:14:47,663 INFO L226 Difference]: Without dead ends: 28 [2022-12-14 12:14:47,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:14:47,664 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 31 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:14:47,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 26 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:14:47,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-12-14 12:14:47,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-12-14 12:14:47,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 23 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 12:14:47,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2022-12-14 12:14:47,670 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 13 [2022-12-14 12:14:47,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:14:47,671 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2022-12-14 12:14:47,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 12:14:47,671 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2022-12-14 12:14:47,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 12:14:47,672 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:14:47,672 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:14:47,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 12:14:47,672 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:14:47,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:14:47,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1884180504, now seen corresponding path program 1 times [2022-12-14 12:14:47,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:14:47,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108175730] [2022-12-14 12:14:47,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:14:47,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:14:47,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:14:47,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 12:14:47,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:14:47,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108175730] [2022-12-14 12:14:47,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108175730] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:14:47,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:14:47,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:14:47,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571865809] [2022-12-14 12:14:47,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:14:47,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:14:47,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:14:47,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:14:47,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:14:47,732 INFO L87 Difference]: Start difference. First operand 28 states and 33 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) [2022-12-14 12:14:47,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:14:47,758 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2022-12-14 12:14:47,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:14:47,759 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 14 [2022-12-14 12:14:47,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:14:47,759 INFO L225 Difference]: With dead ends: 28 [2022-12-14 12:14:47,759 INFO L226 Difference]: Without dead ends: 27 [2022-12-14 12:14:47,760 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 [2022-12-14 12:14:47,761 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 2 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:14:47,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 44 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:14:47,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-14 12:14:47,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-12-14 12:14:47,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 22 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 12:14:47,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2022-12-14 12:14:47,766 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 14 [2022-12-14 12:14:47,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:14:47,766 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2022-12-14 12:14:47,766 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) [2022-12-14 12:14:47,766 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-12-14 12:14:47,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 12:14:47,767 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:14:47,767 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:14:47,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 12:14:47,767 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:14:47,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:14:47,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1719475990, now seen corresponding path program 1 times [2022-12-14 12:14:47,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:14:47,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498379210] [2022-12-14 12:14:47,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:14:47,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:14:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:14:47,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 12:14:47,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:14:47,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498379210] [2022-12-14 12:14:47,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498379210] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:14:47,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:14:47,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:14:47,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104351298] [2022-12-14 12:14:47,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:14:47,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:14:47,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:14:47,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:14:47,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:14:47,838 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) 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) [2022-12-14 12:14:47,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:14:47,861 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2022-12-14 12:14:47,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:14:47,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) 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 15 [2022-12-14 12:14:47,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:14:47,862 INFO L225 Difference]: With dead ends: 37 [2022-12-14 12:14:47,862 INFO L226 Difference]: Without dead ends: 31 [2022-12-14 12:14:47,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:14:47,864 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 17 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:14:47,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 35 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:14:47,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-12-14 12:14:47,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-12-14 12:14:47,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 23 states have internal predecessors, (23), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 12:14:47,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2022-12-14 12:14:47,870 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 15 [2022-12-14 12:14:47,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:14:47,871 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2022-12-14 12:14:47,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) 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) [2022-12-14 12:14:47,871 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2022-12-14 12:14:47,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 12:14:47,872 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:14:47,872 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:14:47,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 12:14:47,872 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:14:47,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:14:47,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1719946431, now seen corresponding path program 1 times [2022-12-14 12:14:47,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:14:47,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752201942] [2022-12-14 12:14:47,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:14:47,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:14:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:14:48,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 12:14:48,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:14:48,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752201942] [2022-12-14 12:14:48,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752201942] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:14:48,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:14:48,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:14:48,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233742015] [2022-12-14 12:14:48,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:14:48,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:14:48,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:14:48,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:14:48,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:14:48,002 INFO L87 Difference]: Start difference. First operand 31 states and 33 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) [2022-12-14 12:14:48,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:14:48,025 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-12-14 12:14:48,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:14:48,025 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 15 [2022-12-14 12:14:48,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:14:48,026 INFO L225 Difference]: With dead ends: 31 [2022-12-14 12:14:48,026 INFO L226 Difference]: Without dead ends: 30 [2022-12-14 12:14:48,026 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 [2022-12-14 12:14:48,027 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 6 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:14:48,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 33 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:14:48,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-12-14 12:14:48,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-12-14 12:14:48,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 22 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 12:14:48,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2022-12-14 12:14:48,032 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 15 [2022-12-14 12:14:48,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:14:48,033 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2022-12-14 12:14:48,033 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) [2022-12-14 12:14:48,033 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-12-14 12:14:48,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 12:14:48,034 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:14:48,034 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:14:48,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 12:14:48,034 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:14:48,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:14:48,034 INFO L85 PathProgramCache]: Analyzing trace with hash 76666879, now seen corresponding path program 1 times [2022-12-14 12:14:48,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:14:48,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218599811] [2022-12-14 12:14:48,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:14:48,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:14:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:14:48,096 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 12:14:48,096 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:14:48,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218599811] [2022-12-14 12:14:48,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218599811] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:14:48,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:14:48,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:14:48,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058163965] [2022-12-14 12:14:48,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:14:48,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:14:48,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:14:48,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:14:48,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:14:48,098 INFO L87 Difference]: Start difference. First operand 30 states and 32 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 12:14:48,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:14:48,116 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-12-14 12:14:48,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:14:48,117 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19 [2022-12-14 12:14:48,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:14:48,117 INFO L225 Difference]: With dead ends: 30 [2022-12-14 12:14:48,117 INFO L226 Difference]: Without dead ends: 29 [2022-12-14 12:14:48,118 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 [2022-12-14 12:14:48,118 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:14:48,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 41 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:14:48,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-14 12:14:48,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-12-14 12:14:48,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.105263157894737) internal successors, (21), 21 states have internal predecessors, (21), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-14 12:14:48,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2022-12-14 12:14:48,124 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 19 [2022-12-14 12:14:48,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:14:48,124 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2022-12-14 12:14:48,125 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 12:14:48,125 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2022-12-14 12:14:48,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 12:14:48,125 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:14:48,125 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:14:48,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 12:14:48,126 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 12:14:48,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:14:48,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1918293940, now seen corresponding path program 1 times [2022-12-14 12:14:48,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:14:48,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126241608] [2022-12-14 12:14:48,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:14:48,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:14:48,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:14:48,197 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 12:14:48,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:14:48,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126241608] [2022-12-14 12:14:48,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126241608] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:14:48,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:14:48,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:14:48,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525809838] [2022-12-14 12:14:48,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:14:48,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:14:48,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:14:48,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:14:48,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:14:48,200 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 12:14:48,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:14:48,219 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2022-12-14 12:14:48,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:14:48,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2022-12-14 12:14:48,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:14:48,220 INFO L225 Difference]: With dead ends: 29 [2022-12-14 12:14:48,220 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 12:14:48,220 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 [2022-12-14 12:14:48,221 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:14:48,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:14:48,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 12:14:48,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 12:14:48,222 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) [2022-12-14 12:14:48,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 12:14:48,222 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2022-12-14 12:14:48,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:14:48,222 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 12:14:48,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-14 12:14:48,223 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 12:14:48,223 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 12:14:48,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-12-14 12:14:48,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-12-14 12:14:48,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-12-14 12:14:48,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-12-14 12:14:48,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-12-14 12:14:48,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-12-14 12:14:48,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 12:14:48,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 12:14:48,263 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2022-12-14 12:14:48,263 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-12-14 12:14:48,263 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2022-12-14 12:14:48,264 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-12-14 12:14:48,264 INFO L899 garLoopResultBuilder]: For program point L1633(lines 1633 1640) no Hoare annotation was computed. [2022-12-14 12:14:48,264 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1621) no Hoare annotation was computed. [2022-12-14 12:14:48,264 INFO L899 garLoopResultBuilder]: For program point L1621(line 1621) no Hoare annotation was computed. [2022-12-14 12:14:48,264 INFO L899 garLoopResultBuilder]: For program point L1621-1(line 1621) no Hoare annotation was computed. [2022-12-14 12:14:48,264 INFO L899 garLoopResultBuilder]: For program point L1617(lines 1617 1629) no Hoare annotation was computed. [2022-12-14 12:14:48,264 INFO L902 garLoopResultBuilder]: At program point L1638(line 1638) the Hoare annotation is: true [2022-12-14 12:14:48,264 INFO L899 garLoopResultBuilder]: For program point L1605(line 1605) no Hoare annotation was computed. [2022-12-14 12:14:48,264 INFO L899 garLoopResultBuilder]: For program point L1605-1(line 1605) no Hoare annotation was computed. [2022-12-14 12:14:48,264 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1605) no Hoare annotation was computed. [2022-12-14 12:14:48,264 INFO L899 garLoopResultBuilder]: For program point L1597(lines 1597 1613) no Hoare annotation was computed. [2022-12-14 12:14:48,265 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1636) no Hoare annotation was computed. [2022-12-14 12:14:48,265 INFO L902 garLoopResultBuilder]: At program point L1589(line 1589) the Hoare annotation is: true [2022-12-14 12:14:48,265 INFO L902 garLoopResultBuilder]: At program point L1589-1(line 1589) the Hoare annotation is: true [2022-12-14 12:14:48,265 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1605) no Hoare annotation was computed. [2022-12-14 12:14:48,265 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 12:14:48,265 INFO L899 garLoopResultBuilder]: For program point L1631(lines 1631 1641) no Hoare annotation was computed. [2022-12-14 12:14:48,265 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1636) no Hoare annotation was computed. [2022-12-14 12:14:48,265 INFO L895 garLoopResultBuilder]: At program point L1627(line 1627) the Hoare annotation is: (and (<= |ULTIMATE.start_CWE191_Integer_Underflow__int_rand_predec_22_goodB2G1Sink_~data#1| 2147483647) (= ~CWE191_Integer_Underflow__int_rand_predec_22_goodB2G2Global~0 1) (<= |ULTIMATE.start_CWE191_Integer_Underflow__int_rand_predec_22_goodB2G2Sink_~data#1| 2147483647) (= ~CWE191_Integer_Underflow__int_rand_predec_22_goodB2G1Global~0 0)) [2022-12-14 12:14:48,266 INFO L895 garLoopResultBuilder]: At program point L1623(line 1623) the Hoare annotation is: (and (<= |ULTIMATE.start_CWE191_Integer_Underflow__int_rand_predec_22_goodB2G1Sink_~data#1| 2147483647) (= ~CWE191_Integer_Underflow__int_rand_predec_22_goodB2G2Global~0 1) (<= |ULTIMATE.start_CWE191_Integer_Underflow__int_rand_predec_22_goodB2G2Sink_~data#1| 2147483647) (= ~CWE191_Integer_Underflow__int_rand_predec_22_goodB2G1Global~0 0)) [2022-12-14 12:14:48,266 INFO L899 garLoopResultBuilder]: For program point L1619(lines 1619 1628) no Hoare annotation was computed. [2022-12-14 12:14:48,266 INFO L899 garLoopResultBuilder]: For program point L1615(lines 1615 1630) no Hoare annotation was computed. [2022-12-14 12:14:48,266 INFO L895 garLoopResultBuilder]: At program point L1611(line 1611) the Hoare annotation is: (and (<= |ULTIMATE.start_CWE191_Integer_Underflow__int_rand_predec_22_goodB2G1Sink_~data#1| 2147483647) (= ~CWE191_Integer_Underflow__int_rand_predec_22_goodB2G1Global~0 0)) [2022-12-14 12:14:48,266 INFO L899 garLoopResultBuilder]: For program point L1611-1(lines 1595 1614) no Hoare annotation was computed. [2022-12-14 12:14:48,266 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 12:14:48,266 INFO L895 garLoopResultBuilder]: At program point L1607(line 1607) the Hoare annotation is: (and (<= |ULTIMATE.start_CWE191_Integer_Underflow__int_rand_predec_22_goodB2G1Sink_~data#1| 2147483647) (= ~CWE191_Integer_Underflow__int_rand_predec_22_goodB2G1Global~0 0)) [2022-12-14 12:14:48,266 INFO L899 garLoopResultBuilder]: For program point L1636(line 1636) no Hoare annotation was computed. [2022-12-14 12:14:48,266 INFO L899 garLoopResultBuilder]: For program point L1603(lines 1603 1612) no Hoare annotation was computed. [2022-12-14 12:14:48,267 INFO L899 garLoopResultBuilder]: For program point L1636-1(line 1636) no Hoare annotation was computed. [2022-12-14 12:14:48,267 INFO L895 garLoopResultBuilder]: At program point L1599(line 1599) the Hoare annotation is: false [2022-12-14 12:14:48,267 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1621) no Hoare annotation was computed. [2022-12-14 12:14:48,267 INFO L895 garLoopResultBuilder]: At program point L1587(line 1587) the Hoare annotation is: (= ~CWE191_Integer_Underflow__int_rand_predec_22_goodB2G1Global~0 0) [2022-12-14 12:14:48,267 INFO L899 garLoopResultBuilder]: For program point L1587-1(line 1587) no Hoare annotation was computed. [2022-12-14 12:14:48,270 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:14:48,272 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 12:14:48,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 12:14:48 BoogieIcfgContainer [2022-12-14 12:14:48,279 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 12:14:48,279 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 12:14:48,279 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 12:14:48,279 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 12:14:48,280 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:14:46" (3/4) ... [2022-12-14 12:14:48,282 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 12:14:48,286 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-12-14 12:14:48,286 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-12-14 12:14:48,289 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-12-14 12:14:48,290 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-12-14 12:14:48,290 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 12:14:48,290 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 12:14:48,317 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f116fc-2987-423a-ac37-2e2e239efb56/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 12:14:48,317 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 12:14:48,317 INFO L158 Benchmark]: Toolchain (without parser) took 2707.07ms. Allocated memory was 140.5MB in the beginning and 226.5MB in the end (delta: 86.0MB). Free memory was 100.1MB in the beginning and 174.6MB in the end (delta: -74.5MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2022-12-14 12:14:48,318 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 140.5MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:14:48,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 756.99ms. Allocated memory was 140.5MB in the beginning and 226.5MB in the end (delta: 86.0MB). Free memory was 99.7MB in the beginning and 185.0MB in the end (delta: -85.3MB). Peak memory consumption was 70.1MB. Max. memory is 16.1GB. [2022-12-14 12:14:48,318 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.86ms. Allocated memory is still 226.5MB. Free memory was 185.0MB in the beginning and 181.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:14:48,318 INFO L158 Benchmark]: Boogie Preprocessor took 21.44ms. Allocated memory is still 226.5MB. Free memory was 181.9MB in the beginning and 179.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:14:48,318 INFO L158 Benchmark]: RCFGBuilder took 480.33ms. Allocated memory is still 226.5MB. Free memory was 179.8MB in the beginning and 153.4MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-14 12:14:48,318 INFO L158 Benchmark]: TraceAbstraction took 1362.85ms. Allocated memory is still 226.5MB. Free memory was 152.6MB in the beginning and 178.8MB in the end (delta: -26.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:14:48,319 INFO L158 Benchmark]: Witness Printer took 37.81ms. Allocated memory is still 226.5MB. Free memory was 178.8MB in the beginning and 174.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 12:14:48,320 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 140.5MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 756.99ms. Allocated memory was 140.5MB in the beginning and 226.5MB in the end (delta: 86.0MB). Free memory was 99.7MB in the beginning and 185.0MB in the end (delta: -85.3MB). Peak memory consumption was 70.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.86ms. Allocated memory is still 226.5MB. Free memory was 185.0MB in the beginning and 181.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.44ms. Allocated memory is still 226.5MB. Free memory was 181.9MB in the beginning and 179.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 480.33ms. Allocated memory is still 226.5MB. Free memory was 179.8MB in the beginning and 153.4MB in the end (delta: 26.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1362.85ms. Allocated memory is still 226.5MB. Free memory was 152.6MB in the beginning and 178.8MB in the end (delta: -26.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 37.81ms. Allocated memory is still 226.5MB. Free memory was 178.8MB in the beginning and 174.6MB in the end (delta: 4.2MB). 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: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1605]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1621]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1621]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1636]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1636]: 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, 36 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 319 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 124 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 110 IncrementalHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 195 mSDtfsCounter, 110 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 24, 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 19 PreInvPairs, 21 NumberOfFragments, 49 HoareAnnotationTreeSize, 19 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 155 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 20/20 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 6 specifications checked. All of them hold - InvariantResult [Line: 1589]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-14 12:14:48,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f116fc-2987-423a-ac37-2e2e239efb56/bin/utaipan-gh47qXpMRh/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