./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_22_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f107db11-f41c-4bde-8870-8c7e149b635d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f107db11-f41c-4bde-8870-8c7e149b635d/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_f107db11-f41c-4bde-8870-8c7e149b635d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f107db11-f41c-4bde-8870-8c7e149b635d/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_22_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f107db11-f41c-4bde-8870-8c7e149b635d/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_f107db11-f41c-4bde-8870-8c7e149b635d/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 709e403a8a132b9f269e58f6098236a6dcc8a76eebff61b0f6fd392cf5df68e3 --- 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 15:07:13,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:07:13,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:07:13,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:07:13,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:07:13,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:07:13,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:07:13,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:07:13,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:07:13,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:07:13,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:07:13,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:07:13,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:07:13,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:07:13,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:07:13,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:07:13,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:07:13,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:07:13,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:07:13,565 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:07:13,566 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:07:13,567 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:07:13,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:07:13,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:07:13,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:07:13,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:07:13,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:07:13,575 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:07:13,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:07:13,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:07:13,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:07:13,577 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:07:13,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:07:13,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:07:13,579 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:07:13,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:07:13,580 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:07:13,581 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:07:13,581 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:07:13,582 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:07:13,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:07:13,583 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f107db11-f41c-4bde-8870-8c7e149b635d/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 15:07:13,603 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:07:13,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:07:13,604 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:07:13,604 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:07:13,604 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:07:13,605 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:07:13,605 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:07:13,605 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:07:13,605 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:07:13,605 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:07:13,606 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:07:13,606 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:07:13,606 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:07:13,606 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:07:13,606 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:07:13,607 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:07:13,607 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:07:13,607 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:07:13,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:07:13,608 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:07:13,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:07:13,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:07:13,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:07:13,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:07:13,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:07:13,609 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 15:07:13,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:07:13,609 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:07:13,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:07:13,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:07:13,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:07:13,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:07:13,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:07:13,610 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:07:13,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:07:13,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:07:13,611 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:07:13,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:07:13,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:07:13,611 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:07:13,612 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_f107db11-f41c-4bde-8870-8c7e149b635d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f107db11-f41c-4bde-8870-8c7e149b635d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 709e403a8a132b9f269e58f6098236a6dcc8a76eebff61b0f6fd392cf5df68e3 [2022-12-14 15:07:13,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:07:13,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:07:13,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:07:13,810 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:07:13,810 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:07:13,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f107db11-f41c-4bde-8870-8c7e149b635d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_22_good.i [2022-12-14 15:07:16,457 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:07:16,657 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:07:16,658 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f107db11-f41c-4bde-8870-8c7e149b635d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_22_good.i [2022-12-14 15:07:16,671 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f107db11-f41c-4bde-8870-8c7e149b635d/bin/utaipan-gh47qXpMRh/data/df348a840/9a058f82889c4a79a7037c0d77ee0bf0/FLAGd75295b06 [2022-12-14 15:07:16,681 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f107db11-f41c-4bde-8870-8c7e149b635d/bin/utaipan-gh47qXpMRh/data/df348a840/9a058f82889c4a79a7037c0d77ee0bf0 [2022-12-14 15:07:16,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:07:16,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:07:16,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:07:16,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:07:16,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:07:16,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:07:16" (1/1) ... [2022-12-14 15:07:16,689 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46387003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:16, skipping insertion in model container [2022-12-14 15:07:16,689 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:07:16" (1/1) ... [2022-12-14 15:07:16,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:07:16,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:07:16,975 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:07:17,281 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:07:17,285 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:07:17,286 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:07:17,288 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:07:17,288 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:07:17,306 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 15:07:17,311 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 15:07:17,317 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:07:17,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:07:17,332 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:07:17,350 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:07:17,394 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:07:17,396 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:07:17,397 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:07:17,399 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:07:17,400 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:07:17,404 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 15:07:17,406 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 15:07:17,408 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:07:17,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:07:17,533 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:07:17,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:17 WrapperNode [2022-12-14 15:07:17,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:07:17,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:07:17,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:07:17,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:07:17,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:17" (1/1) ... [2022-12-14 15:07:17,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:17" (1/1) ... [2022-12-14 15:07:17,573 INFO L138 Inliner]: procedures = 506, calls = 84, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 113 [2022-12-14 15:07:17,574 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:07:17,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:07:17,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:07:17,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:07:17,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:17" (1/1) ... [2022-12-14 15:07:17,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:17" (1/1) ... [2022-12-14 15:07:17,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:17" (1/1) ... [2022-12-14 15:07:17,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:17" (1/1) ... [2022-12-14 15:07:17,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:17" (1/1) ... [2022-12-14 15:07:17,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:17" (1/1) ... [2022-12-14 15:07:17,591 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:17" (1/1) ... [2022-12-14 15:07:17,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:17" (1/1) ... [2022-12-14 15:07:17,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:07:17,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:07:17,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:07:17,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:07:17,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:17" (1/1) ... [2022-12-14 15:07:17,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:07:17,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f107db11-f41c-4bde-8870-8c7e149b635d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:07:17,619 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f107db11-f41c-4bde-8870-8c7e149b635d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:07:17,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f107db11-f41c-4bde-8870-8c7e149b635d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:07:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-12-14 15:07:17,650 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-12-14 15:07:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 15:07:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 15:07:17,650 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 15:07:17,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:07:17,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 15:07:17,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:07:17,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:07:17,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:07:17,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:07:17,651 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 15:07:17,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:07:17,762 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:07:17,763 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:07:17,908 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:07:17,931 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:07:17,931 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 15:07:17,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:07:17 BoogieIcfgContainer [2022-12-14 15:07:17,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:07:17,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:07:17,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:07:17,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:07:17,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:07:16" (1/3) ... [2022-12-14 15:07:17,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd28be1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:07:17, skipping insertion in model container [2022-12-14 15:07:17,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:07:17" (2/3) ... [2022-12-14 15:07:17,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd28be1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:07:17, skipping insertion in model container [2022-12-14 15:07:17,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:07:17" (3/3) ... [2022-12-14 15:07:17,938 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_22_good.i [2022-12-14 15:07:17,951 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:07:17,951 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 15:07:17,986 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:07:17,991 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;@4d072114, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:07:17,991 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 15:07:17,994 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 23 states have (on average 1.565217391304348) internal successors, (36), 36 states have internal predecessors, (36), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-12-14 15:07:18,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 15:07:18,000 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:07:18,000 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:07:18,001 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 15:07:18,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:07:18,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1814951372, now seen corresponding path program 1 times [2022-12-14 15:07:18,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:07:18,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254659468] [2022-12-14 15:07:18,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:07:18,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:07:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:07:18,197 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 15:07:18,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:07:18,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254659468] [2022-12-14 15:07:18,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254659468] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:07:18,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:07:18,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:07:18,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117673574] [2022-12-14 15:07:18,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:07:18,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:07:18,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:07:18,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:07:18,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:07:18,230 INFO L87 Difference]: Start difference. First operand has 42 states, 23 states have (on average 1.565217391304348) internal successors, (36), 36 states have internal predecessors, (36), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 15:07:18,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:07:18,269 INFO L93 Difference]: Finished difference Result 42 states and 56 transitions. [2022-12-14 15:07:18,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:07:18,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 10 [2022-12-14 15:07:18,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:07:18,278 INFO L225 Difference]: With dead ends: 42 [2022-12-14 15:07:18,278 INFO L226 Difference]: Without dead ends: 36 [2022-12-14 15:07:18,280 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 15:07:18,282 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 2 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:07:18,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 87 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:07:18,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-12-14 15:07:18,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-12-14 15:07:18,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 31 states have internal predecessors, (31), 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 15:07:18,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2022-12-14 15:07:18,308 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 10 [2022-12-14 15:07:18,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:07:18,309 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2022-12-14 15:07:18,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 15:07:18,310 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2022-12-14 15:07:18,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 15:07:18,310 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:07:18,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:07:18,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:07:18,311 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 15:07:18,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:07:18,311 INFO L85 PathProgramCache]: Analyzing trace with hash -428917619, now seen corresponding path program 1 times [2022-12-14 15:07:18,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:07:18,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618366368] [2022-12-14 15:07:18,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:07:18,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:07:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:07:18,425 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 15:07:18,425 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:07:18,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618366368] [2022-12-14 15:07:18,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618366368] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:07:18,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:07:18,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:07:18,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002486998] [2022-12-14 15:07:18,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:07:18,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:07:18,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:07:18,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:07:18,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:07:18,428 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:07:18,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:07:18,474 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2022-12-14 15:07:18,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:07:18,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-14 15:07:18,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:07:18,475 INFO L225 Difference]: With dead ends: 36 [2022-12-14 15:07:18,475 INFO L226 Difference]: Without dead ends: 35 [2022-12-14 15:07:18,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:07:18,477 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 44 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:07:18,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 58 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:07:18,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-12-14 15:07:18,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-12-14 15:07:18,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 21 states have (on average 1.4285714285714286) 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 15:07:18,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 46 transitions. [2022-12-14 15:07:18,485 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 46 transitions. Word has length 11 [2022-12-14 15:07:18,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:07:18,485 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 46 transitions. [2022-12-14 15:07:18,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:07:18,485 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2022-12-14 15:07:18,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 15:07:18,486 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:07:18,486 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:07:18,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:07:18,487 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 15:07:18,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:07:18,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1214884533, now seen corresponding path program 1 times [2022-12-14 15:07:18,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:07:18,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636260737] [2022-12-14 15:07:18,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:07:18,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:07:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:07:18,541 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 15:07:18,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:07:18,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636260737] [2022-12-14 15:07:18,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636260737] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:07:18,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:07:18,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:07:18,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070503431] [2022-12-14 15:07:18,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:07:18,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:07:18,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:07:18,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:07:18,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:07:18,543 INFO L87 Difference]: Start difference. First operand 35 states and 46 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 15:07:18,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:07:18,560 INFO L93 Difference]: Finished difference Result 57 states and 71 transitions. [2022-12-14 15:07:18,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:07:18,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 17 [2022-12-14 15:07:18,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:07:18,561 INFO L225 Difference]: With dead ends: 57 [2022-12-14 15:07:18,561 INFO L226 Difference]: Without dead ends: 34 [2022-12-14 15:07:18,561 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 15:07:18,563 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 41 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:07:18,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 37 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:07:18,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-12-14 15:07:18,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-12-14 15:07:18,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.380952380952381) internal successors, (29), 29 states have internal predecessors, (29), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-12-14 15:07:18,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 43 transitions. [2022-12-14 15:07:18,570 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 43 transitions. Word has length 17 [2022-12-14 15:07:18,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:07:18,570 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 43 transitions. [2022-12-14 15:07:18,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 15:07:18,571 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2022-12-14 15:07:18,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 15:07:18,571 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:07:18,571 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:07:18,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:07:18,572 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 15:07:18,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:07:18,573 INFO L85 PathProgramCache]: Analyzing trace with hash 175550138, now seen corresponding path program 1 times [2022-12-14 15:07:18,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:07:18,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624862385] [2022-12-14 15:07:18,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:07:18,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:07:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:07:18,624 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 15:07:18,625 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:07:18,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624862385] [2022-12-14 15:07:18,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624862385] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:07:18,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:07:18,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:07:18,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985055554] [2022-12-14 15:07:18,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:07:18,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:07:18,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:07:18,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:07:18,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:07:18,627 INFO L87 Difference]: Start difference. First operand 34 states and 43 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 15:07:18,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:07:18,647 INFO L93 Difference]: Finished difference Result 34 states and 43 transitions. [2022-12-14 15:07:18,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:07:18,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 18 [2022-12-14 15:07:18,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:07:18,648 INFO L225 Difference]: With dead ends: 34 [2022-12-14 15:07:18,649 INFO L226 Difference]: Without dead ends: 33 [2022-12-14 15:07:18,649 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 15:07:18,650 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 2 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:07:18,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 65 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:07:18,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-12-14 15:07:18,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-12-14 15:07:18,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 28 states have internal predecessors, (28), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-12-14 15:07:18,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2022-12-14 15:07:18,656 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 18 [2022-12-14 15:07:18,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:07:18,657 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2022-12-14 15:07:18,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 15:07:18,657 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2022-12-14 15:07:18,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 15:07:18,658 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:07:18,658 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:07:18,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 15:07:18,659 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 15:07:18,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:07:18,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1147562319, now seen corresponding path program 1 times [2022-12-14 15:07:18,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:07:18,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004037176] [2022-12-14 15:07:18,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:07:18,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:07:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:07:18,721 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 15:07:18,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:07:18,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004037176] [2022-12-14 15:07:18,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004037176] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:07:18,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:07:18,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:07:18,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619203727] [2022-12-14 15:07:18,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:07:18,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:07:18,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:07:18,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:07:18,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:07:18,723 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 15:07:18,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:07:18,741 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2022-12-14 15:07:18,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:07:18,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 19 [2022-12-14 15:07:18,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:07:18,742 INFO L225 Difference]: With dead ends: 43 [2022-12-14 15:07:18,742 INFO L226 Difference]: Without dead ends: 37 [2022-12-14 15:07:18,743 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 15:07:18,744 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 17 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 56 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 15:07:18,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 56 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:07:18,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-12-14 15:07:18,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-12-14 15:07:18,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 29 states have internal predecessors, (29), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-12-14 15:07:18,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2022-12-14 15:07:18,751 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 19 [2022-12-14 15:07:18,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:07:18,752 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2022-12-14 15:07:18,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 15:07:18,752 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2022-12-14 15:07:18,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 15:07:18,753 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:07:18,753 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:07:18,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 15:07:18,753 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 15:07:18,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:07:18,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1147087073, now seen corresponding path program 1 times [2022-12-14 15:07:18,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:07:18,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864508199] [2022-12-14 15:07:18,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:07:18,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:07:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:07:18,835 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 15:07:18,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:07:18,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864508199] [2022-12-14 15:07:18,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864508199] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:07:18,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:07:18,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:07:18,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833683753] [2022-12-14 15:07:18,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:07:18,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:07:18,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:07:18,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:07:18,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:07:18,837 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 15:07:18,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:07:18,864 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2022-12-14 15:07:18,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:07:18,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 19 [2022-12-14 15:07:18,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:07:18,865 INFO L225 Difference]: With dead ends: 37 [2022-12-14 15:07:18,865 INFO L226 Difference]: Without dead ends: 36 [2022-12-14 15:07:18,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:07:18,866 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 18 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:07:18,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 73 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:07:18,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-12-14 15:07:18,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-12-14 15:07:18,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 28 states have internal predecessors, (28), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-12-14 15:07:18,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2022-12-14 15:07:18,873 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 19 [2022-12-14 15:07:18,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:07:18,873 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2022-12-14 15:07:18,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 15:07:18,873 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2022-12-14 15:07:18,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 15:07:18,874 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:07:18,874 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:07:18,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 15:07:18,874 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 15:07:18,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:07:18,875 INFO L85 PathProgramCache]: Analyzing trace with hash 110105312, now seen corresponding path program 1 times [2022-12-14 15:07:18,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:07:18,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32132246] [2022-12-14 15:07:18,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:07:18,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:07:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:07:18,933 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 15:07:18,933 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:07:18,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32132246] [2022-12-14 15:07:18,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32132246] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:07:18,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:07:18,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:07:18,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600934375] [2022-12-14 15:07:18,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:07:18,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:07:18,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:07:18,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:07:18,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:07:18,934 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 15:07:18,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:07:18,949 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2022-12-14 15:07:18,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:07:18,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 23 [2022-12-14 15:07:18,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:07:18,950 INFO L225 Difference]: With dead ends: 36 [2022-12-14 15:07:18,950 INFO L226 Difference]: Without dead ends: 35 [2022-12-14 15:07:18,950 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 15:07:18,951 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 2 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:07:18,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 63 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:07:18,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-12-14 15:07:18,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-12-14 15:07:18,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.173913043478261) internal successors, (27), 27 states have internal predecessors, (27), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-12-14 15:07:18,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2022-12-14 15:07:18,957 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 23 [2022-12-14 15:07:18,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:07:18,958 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2022-12-14 15:07:18,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 15:07:18,958 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2022-12-14 15:07:18,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 15:07:18,959 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:07:18,959 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:07:18,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 15:07:18,959 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 15:07:18,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:07:18,960 INFO L85 PathProgramCache]: Analyzing trace with hash -881702515, now seen corresponding path program 1 times [2022-12-14 15:07:18,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:07:18,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912702717] [2022-12-14 15:07:18,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:07:18,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:07:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:07:19,026 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 15:07:19,027 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:07:19,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912702717] [2022-12-14 15:07:19,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912702717] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:07:19,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:07:19,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:07:19,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230651312] [2022-12-14 15:07:19,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:07:19,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:07:19,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:07:19,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:07:19,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:07:19,028 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 15:07:19,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:07:19,043 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2022-12-14 15:07:19,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:07:19,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 24 [2022-12-14 15:07:19,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:07:19,044 INFO L225 Difference]: With dead ends: 35 [2022-12-14 15:07:19,044 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 15:07:19,044 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 15:07:19,045 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:07:19,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:07:19,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 15:07:19,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 15:07:19,046 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 15:07:19,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 15:07:19,046 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2022-12-14 15:07:19,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:07:19,047 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 15:07:19,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 15:07:19,047 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 15:07:19,047 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 15:07:19,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-12-14 15:07:19,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-12-14 15:07:19,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-12-14 15:07:19,050 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-12-14 15:07:19,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-12-14 15:07:19,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-12-14 15:07:19,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 15:07:19,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 15:07:19,103 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2022-12-14 15:07:19,104 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-12-14 15:07:19,104 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2022-12-14 15:07:19,104 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-12-14 15:07:19,104 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1641) no Hoare annotation was computed. [2022-12-14 15:07:19,104 INFO L902 garLoopResultBuilder]: At program point L1658(line 1658) the Hoare annotation is: true [2022-12-14 15:07:19,104 INFO L899 garLoopResultBuilder]: For program point L1625(line 1625) no Hoare annotation was computed. [2022-12-14 15:07:19,104 INFO L899 garLoopResultBuilder]: For program point L1625-1(line 1625) no Hoare annotation was computed. [2022-12-14 15:07:19,104 INFO L899 garLoopResultBuilder]: For program point L1617(lines 1617 1633) no Hoare annotation was computed. [2022-12-14 15:07:19,104 INFO L902 garLoopResultBuilder]: At program point L1609(line 1609) the Hoare annotation is: true [2022-12-14 15:07:19,104 INFO L902 garLoopResultBuilder]: At program point L1609-1(line 1609) the Hoare annotation is: true [2022-12-14 15:07:19,104 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1625) no Hoare annotation was computed. [2022-12-14 15:07:19,104 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1656) no Hoare annotation was computed. [2022-12-14 15:07:19,105 INFO L895 garLoopResultBuilder]: At program point L1564(line 1564) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (= 0 ~CWE191_Integer_Underflow__int_fgets_predec_22_goodB2G1Global~0)) [2022-12-14 15:07:19,105 INFO L899 garLoopResultBuilder]: For program point L1564-1(lines 1558 1565) no Hoare annotation was computed. [2022-12-14 15:07:19,105 INFO L899 garLoopResultBuilder]: For program point L1651(lines 1651 1661) no Hoare annotation was computed. [2022-12-14 15:07:19,105 INFO L895 garLoopResultBuilder]: At program point L1647(line 1647) the Hoare annotation is: (and (<= |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_predec_22_goodB2G1Sink_~data#1| 2147483647) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (= 0 ~CWE191_Integer_Underflow__int_fgets_predec_22_goodB2G1Global~0) (= ~CWE191_Integer_Underflow__int_fgets_predec_22_goodB2G2Global~0 1) (<= |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_predec_22_goodB2G2Sink_~data#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-12-14 15:07:19,105 INFO L895 garLoopResultBuilder]: At program point L1643(line 1643) the Hoare annotation is: (and (<= |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_predec_22_goodB2G1Sink_~data#1| 2147483647) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (= 0 ~CWE191_Integer_Underflow__int_fgets_predec_22_goodB2G1Global~0) (= ~CWE191_Integer_Underflow__int_fgets_predec_22_goodB2G2Global~0 1) (<= |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_predec_22_goodB2G2Sink_~data#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-12-14 15:07:19,105 INFO L899 garLoopResultBuilder]: For program point L1577(lines 1577 1584) no Hoare annotation was computed. [2022-12-14 15:07:19,105 INFO L899 garLoopResultBuilder]: For program point L1639(lines 1639 1648) no Hoare annotation was computed. [2022-12-14 15:07:19,105 INFO L899 garLoopResultBuilder]: For program point L1635(lines 1635 1650) no Hoare annotation was computed. [2022-12-14 15:07:19,106 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1625) no Hoare annotation was computed. [2022-12-14 15:07:19,106 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 15:07:19,106 INFO L895 garLoopResultBuilder]: At program point L1631(line 1631) the Hoare annotation is: (and (<= |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_predec_22_goodB2G1Sink_~data#1| 2147483647) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (= 0 ~CWE191_Integer_Underflow__int_fgets_predec_22_goodB2G1Global~0)) [2022-12-14 15:07:19,106 INFO L899 garLoopResultBuilder]: For program point L1631-1(lines 1615 1634) no Hoare annotation was computed. [2022-12-14 15:07:19,106 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1656) no Hoare annotation was computed. [2022-12-14 15:07:19,106 INFO L895 garLoopResultBuilder]: At program point L1627(line 1627) the Hoare annotation is: (and (<= |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_predec_22_goodB2G1Sink_~data#1| 2147483647) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (= 0 ~CWE191_Integer_Underflow__int_fgets_predec_22_goodB2G1Global~0)) [2022-12-14 15:07:19,106 INFO L899 garLoopResultBuilder]: For program point L1656(line 1656) no Hoare annotation was computed. [2022-12-14 15:07:19,106 INFO L899 garLoopResultBuilder]: For program point L1623(lines 1623 1632) no Hoare annotation was computed. [2022-12-14 15:07:19,106 INFO L899 garLoopResultBuilder]: For program point L1656-1(line 1656) no Hoare annotation was computed. [2022-12-14 15:07:19,106 INFO L895 garLoopResultBuilder]: At program point L1619(line 1619) the Hoare annotation is: false [2022-12-14 15:07:19,106 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 15:07:19,107 INFO L895 garLoopResultBuilder]: At program point L1607(line 1607) the Hoare annotation is: (= 0 ~CWE191_Integer_Underflow__int_fgets_predec_22_goodB2G1Global~0) [2022-12-14 15:07:19,107 INFO L899 garLoopResultBuilder]: For program point L1607-1(line 1607) no Hoare annotation was computed. [2022-12-14 15:07:19,107 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1641) no Hoare annotation was computed. [2022-12-14 15:07:19,107 INFO L899 garLoopResultBuilder]: For program point L1558(lines 1558 1565) no Hoare annotation was computed. [2022-12-14 15:07:19,107 INFO L899 garLoopResultBuilder]: For program point L1653(lines 1653 1660) no Hoare annotation was computed. [2022-12-14 15:07:19,107 INFO L895 garLoopResultBuilder]: At program point L1583(line 1583) the Hoare annotation is: (and (<= |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_predec_22_goodB2G1Sink_~data#1| 2147483647) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (= 0 ~CWE191_Integer_Underflow__int_fgets_predec_22_goodB2G1Global~0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-12-14 15:07:19,107 INFO L899 garLoopResultBuilder]: For program point L1583-1(lines 1577 1584) no Hoare annotation was computed. [2022-12-14 15:07:19,107 INFO L899 garLoopResultBuilder]: For program point L1641(line 1641) no Hoare annotation was computed. [2022-12-14 15:07:19,107 INFO L899 garLoopResultBuilder]: For program point L1641-1(line 1641) no Hoare annotation was computed. [2022-12-14 15:07:19,107 INFO L899 garLoopResultBuilder]: For program point L1637(lines 1637 1649) no Hoare annotation was computed. [2022-12-14 15:07:19,110 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:07:19,111 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:07:19,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:07:19 BoogieIcfgContainer [2022-12-14 15:07:19,118 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:07:19,118 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:07:19,118 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:07:19,118 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:07:19,119 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:07:17" (3/4) ... [2022-12-14 15:07:19,121 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 15:07:19,125 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-12-14 15:07:19,125 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-12-14 15:07:19,129 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-12-14 15:07:19,129 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-14 15:07:19,130 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 15:07:19,130 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 15:07:19,130 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 15:07:19,163 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f107db11-f41c-4bde-8870-8c7e149b635d/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 15:07:19,163 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:07:19,164 INFO L158 Benchmark]: Toolchain (without parser) took 2479.62ms. Allocated memory was 119.5MB in the beginning and 167.8MB in the end (delta: 48.2MB). Free memory was 81.1MB in the beginning and 70.1MB in the end (delta: 11.0MB). Peak memory consumption was 59.6MB. Max. memory is 16.1GB. [2022-12-14 15:07:19,164 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 119.5MB. Free memory was 94.9MB in the beginning and 94.8MB in the end (delta: 118.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:07:19,164 INFO L158 Benchmark]: CACSL2BoogieTranslator took 849.15ms. Allocated memory was 119.5MB in the beginning and 167.8MB in the end (delta: 48.2MB). Free memory was 80.7MB in the beginning and 102.2MB in the end (delta: -21.5MB). Peak memory consumption was 45.5MB. Max. memory is 16.1GB. [2022-12-14 15:07:19,165 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.33ms. Allocated memory is still 167.8MB. Free memory was 102.2MB in the beginning and 99.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:07:19,165 INFO L158 Benchmark]: Boogie Preprocessor took 19.42ms. Allocated memory is still 167.8MB. Free memory was 99.2MB in the beginning and 97.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:07:19,165 INFO L158 Benchmark]: RCFGBuilder took 338.54ms. Allocated memory is still 167.8MB. Free memory was 97.2MB in the beginning and 79.1MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 15:07:19,165 INFO L158 Benchmark]: TraceAbstraction took 1183.74ms. Allocated memory is still 167.8MB. Free memory was 78.3MB in the beginning and 73.2MB in the end (delta: 5.1MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-12-14 15:07:19,166 INFO L158 Benchmark]: Witness Printer took 45.09ms. Allocated memory is still 167.8MB. Free memory was 73.2MB in the beginning and 70.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:07:19,167 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 119.5MB. Free memory was 94.9MB in the beginning and 94.8MB in the end (delta: 118.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 849.15ms. Allocated memory was 119.5MB in the beginning and 167.8MB in the end (delta: 48.2MB). Free memory was 80.7MB in the beginning and 102.2MB in the end (delta: -21.5MB). Peak memory consumption was 45.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.33ms. Allocated memory is still 167.8MB. Free memory was 102.2MB in the beginning and 99.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.42ms. Allocated memory is still 167.8MB. Free memory was 99.2MB in the beginning and 97.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 338.54ms. Allocated memory is still 167.8MB. Free memory was 97.2MB in the beginning and 79.1MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1183.74ms. Allocated memory is still 167.8MB. Free memory was 78.3MB in the beginning and 73.2MB in the end (delta: 5.1MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Witness Printer took 45.09ms. Allocated memory is still 167.8MB. Free memory was 73.2MB in the beginning and 70.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1625]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1641]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1641]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1656]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1656]: 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, 42 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 128 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 126 mSDsluCounter, 502 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 221 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 108 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 281 mSDtfsCounter, 108 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 24 PreInvPairs, 27 NumberOfFragments, 87 HoareAnnotationTreeSize, 24 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 133 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 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: 1609]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-14 15:07:19,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f107db11-f41c-4bde-8870-8c7e149b635d/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