./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_12_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cb8b393-d5ce-4a15-92bc-eab640a7e2b7/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cb8b393-d5ce-4a15-92bc-eab640a7e2b7/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_8cb8b393-d5ce-4a15-92bc-eab640a7e2b7/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cb8b393-d5ce-4a15-92bc-eab640a7e2b7/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_12_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cb8b393-d5ce-4a15-92bc-eab640a7e2b7/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_8cb8b393-d5ce-4a15-92bc-eab640a7e2b7/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 cac34979b9aa2a89bb0948e53cb1799e21a6b6fa6369624d7e8709f7f8009cbb --- 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 10:03:12,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:03:12,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:03:12,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:03:12,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:03:12,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:03:12,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:03:12,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:03:12,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:03:12,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:03:12,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:03:12,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:03:12,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:03:12,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:03:12,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:03:12,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:03:12,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:03:12,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:03:12,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:03:12,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:03:12,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:03:12,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:03:12,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:03:12,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:03:12,340 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:03:12,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:03:12,341 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:03:12,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:03:12,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:03:12,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:03:12,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:03:12,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:03:12,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:03:12,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:03:12,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:03:12,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:03:12,345 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:03:12,345 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:03:12,345 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:03:12,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:03:12,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:03:12,347 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cb8b393-d5ce-4a15-92bc-eab640a7e2b7/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 10:03:12,360 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:03:12,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:03:12,361 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:03:12,361 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:03:12,361 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:03:12,361 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:03:12,361 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:03:12,362 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:03:12,362 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:03:12,362 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:03:12,362 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:03:12,362 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:03:12,362 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:03:12,362 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:03:12,362 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:03:12,362 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:03:12,362 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:03:12,363 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:03:12,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:03:12,363 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:03:12,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:03:12,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:03:12,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:03:12,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:03:12,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:03:12,364 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 10:03:12,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:03:12,364 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:03:12,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:03:12,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:03:12,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:03:12,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:03:12,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:03:12,365 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:03:12,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:03:12,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:03:12,365 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:03:12,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:03:12,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:03:12,365 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:03:12,366 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_8cb8b393-d5ce-4a15-92bc-eab640a7e2b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cb8b393-d5ce-4a15-92bc-eab640a7e2b7/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cac34979b9aa2a89bb0948e53cb1799e21a6b6fa6369624d7e8709f7f8009cbb [2022-12-14 10:03:12,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:03:12,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:03:12,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:03:12,548 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:03:12,548 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:03:12,549 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cb8b393-d5ce-4a15-92bc-eab640a7e2b7/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_12_good.i [2022-12-14 10:03:15,203 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:03:15,441 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:03:15,442 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cb8b393-d5ce-4a15-92bc-eab640a7e2b7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_12_good.i [2022-12-14 10:03:15,454 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cb8b393-d5ce-4a15-92bc-eab640a7e2b7/bin/utaipan-gh47qXpMRh/data/17fe97e45/20709e1807dd4eacb97882a4cac694e9/FLAGda79d7e5e [2022-12-14 10:03:15,464 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cb8b393-d5ce-4a15-92bc-eab640a7e2b7/bin/utaipan-gh47qXpMRh/data/17fe97e45/20709e1807dd4eacb97882a4cac694e9 [2022-12-14 10:03:15,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:03:15,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:03:15,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:03:15,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:03:15,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:03:15,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:03:15" (1/1) ... [2022-12-14 10:03:15,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40e1d2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:15, skipping insertion in model container [2022-12-14 10:03:15,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:03:15" (1/1) ... [2022-12-14 10:03:15,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:03:15,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:03:15,727 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 10:03:16,026 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:03:16,031 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:03:16,033 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:03:16,035 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:03:16,036 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:03:16,064 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 10:03:16,066 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:03:16,075 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:03:16,093 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 10:03:16,131 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:03:16,132 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:03:16,133 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:03:16,135 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:03:16,136 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:03:16,142 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 10:03:16,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:03:16,269 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:03:16,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:16 WrapperNode [2022-12-14 10:03:16,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:03:16,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:03:16,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:03:16,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:03:16,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:16" (1/1) ... [2022-12-14 10:03:16,298 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:16" (1/1) ... [2022-12-14 10:03:16,321 INFO L138 Inliner]: procedures = 501, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 111 [2022-12-14 10:03:16,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:03:16,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:03:16,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:03:16,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:03:16,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:16" (1/1) ... [2022-12-14 10:03:16,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:16" (1/1) ... [2022-12-14 10:03:16,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:16" (1/1) ... [2022-12-14 10:03:16,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:16" (1/1) ... [2022-12-14 10:03:16,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:16" (1/1) ... [2022-12-14 10:03:16,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:16" (1/1) ... [2022-12-14 10:03:16,344 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:16" (1/1) ... [2022-12-14 10:03:16,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:16" (1/1) ... [2022-12-14 10:03:16,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:03:16,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:03:16,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:03:16,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:03:16,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:16" (1/1) ... [2022-12-14 10:03:16,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:03:16,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cb8b393-d5ce-4a15-92bc-eab640a7e2b7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:03:16,380 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cb8b393-d5ce-4a15-92bc-eab640a7e2b7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:03:16,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cb8b393-d5ce-4a15-92bc-eab640a7e2b7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:03:16,416 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-12-14 10:03:16,416 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-12-14 10:03:16,417 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2022-12-14 10:03:16,417 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2022-12-14 10:03:16,417 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 10:03:16,417 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 10:03:16,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:03:16,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 10:03:16,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:03:16,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:03:16,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:03:16,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:03:16,418 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 10:03:16,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:03:16,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:03:16,542 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:03:16,544 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:03:16,707 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:03:16,741 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:03:16,741 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 10:03:16,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:03:16 BoogieIcfgContainer [2022-12-14 10:03:16,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:03:16,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:03:16,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:03:16,749 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:03:16,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:03:15" (1/3) ... [2022-12-14 10:03:16,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@326b47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:03:16, skipping insertion in model container [2022-12-14 10:03:16,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:03:16" (2/3) ... [2022-12-14 10:03:16,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@326b47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:03:16, skipping insertion in model container [2022-12-14 10:03:16,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:03:16" (3/3) ... [2022-12-14 10:03:16,752 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_postdec_12_good.i [2022-12-14 10:03:16,769 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:03:16,770 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 10:03:16,808 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:03:16,812 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;@62bfc733, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:03:16,812 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-14 10:03:16,815 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 24 states have (on average 1.5) internal successors, (36), 36 states have internal predecessors, (36), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 10:03:16,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 10:03:16,822 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:03:16,823 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:03:16,824 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 10:03:16,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:03:16,829 INFO L85 PathProgramCache]: Analyzing trace with hash -2117900968, now seen corresponding path program 1 times [2022-12-14 10:03:16,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:03:16,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3904469] [2022-12-14 10:03:16,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:03:16,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:03:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:03:17,149 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 10:03:17,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:03:17,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3904469] [2022-12-14 10:03:17,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3904469] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:03:17,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:03:17,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:03:17,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285708851] [2022-12-14 10:03:17,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:03:17,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:03:17,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:03:17,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:03:17,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:03:17,187 INFO L87 Difference]: Start difference. First operand has 48 states, 24 states have (on average 1.5) internal successors, (36), 36 states have internal predecessors, (36), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) 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, (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 10:03:17,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:03:17,269 INFO L93 Difference]: Finished difference Result 48 states and 60 transitions. [2022-12-14 10:03:17,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:03:17,271 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, (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 16 [2022-12-14 10:03:17,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:03:17,278 INFO L225 Difference]: With dead ends: 48 [2022-12-14 10:03:17,278 INFO L226 Difference]: Without dead ends: 41 [2022-12-14 10:03:17,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:03:17,282 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 2 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:03:17,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 129 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 10:03:17,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-14 10:03:17,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-12-14 10:03:17,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 31 states have internal predecessors, (31), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2022-12-14 10:03:17,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2022-12-14 10:03:17,308 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 16 [2022-12-14 10:03:17,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:03:17,309 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2022-12-14 10:03:17,309 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, (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 10:03:17,309 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2022-12-14 10:03:17,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 10:03:17,310 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:03:17,310 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:03:17,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:03:17,310 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 10:03:17,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:03:17,311 INFO L85 PathProgramCache]: Analyzing trace with hash -2117914870, now seen corresponding path program 1 times [2022-12-14 10:03:17,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:03:17,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993205455] [2022-12-14 10:03:17,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:03:17,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:03:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:03:17,385 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 10:03:17,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:03:17,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993205455] [2022-12-14 10:03:17,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993205455] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:03:17,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:03:17,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:03:17,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575553919] [2022-12-14 10:03:17,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:03:17,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:03:17,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:03:17,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:03:17,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:03:17,388 INFO L87 Difference]: Start difference. First operand 41 states and 49 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, (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 10:03:17,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:03:17,427 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2022-12-14 10:03:17,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:03:17,428 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, (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 16 [2022-12-14 10:03:17,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:03:17,429 INFO L225 Difference]: With dead ends: 41 [2022-12-14 10:03:17,429 INFO L226 Difference]: Without dead ends: 40 [2022-12-14 10:03:17,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:03:17,430 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 2 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:03:17,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 102 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:03:17,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-12-14 10:03:17,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-12-14 10:03:17,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 30 states have internal predecessors, (30), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2022-12-14 10:03:17,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2022-12-14 10:03:17,434 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 16 [2022-12-14 10:03:17,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:03:17,435 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2022-12-14 10:03:17,435 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, (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 10:03:17,435 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2022-12-14 10:03:17,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 10:03:17,435 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:03:17,436 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:03:17,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:03:17,436 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 10:03:17,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:03:17,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1230420488, now seen corresponding path program 1 times [2022-12-14 10:03:17,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:03:17,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856762157] [2022-12-14 10:03:17,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:03:17,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:03:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:03:17,611 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 10:03:17,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:03:17,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856762157] [2022-12-14 10:03:17,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856762157] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:03:17,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:03:17,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:03:17,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135447006] [2022-12-14 10:03:17,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:03:17,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:03:17,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:03:17,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:03:17,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:03:17,613 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 10:03:17,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:03:17,675 INFO L93 Difference]: Finished difference Result 40 states and 48 transitions. [2022-12-14 10:03:17,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:03:17,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2022-12-14 10:03:17,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:03:17,676 INFO L225 Difference]: With dead ends: 40 [2022-12-14 10:03:17,677 INFO L226 Difference]: Without dead ends: 39 [2022-12-14 10:03:17,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:03:17,678 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 8 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:03:17,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 82 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:03:17,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-14 10:03:17,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-12-14 10:03:17,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 29 states have internal predecessors, (29), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2022-12-14 10:03:17,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2022-12-14 10:03:17,683 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 17 [2022-12-14 10:03:17,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:03:17,684 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2022-12-14 10:03:17,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 10:03:17,684 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2022-12-14 10:03:17,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-14 10:03:17,684 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:03:17,684 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:03:17,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:03:17,685 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 10:03:17,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:03:17,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1230851464, now seen corresponding path program 1 times [2022-12-14 10:03:17,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:03:17,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601911187] [2022-12-14 10:03:17,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:03:17,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:03:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:03:17,836 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 10:03:17,837 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:03:17,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601911187] [2022-12-14 10:03:17,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601911187] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:03:17,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:03:17,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:03:17,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132882628] [2022-12-14 10:03:17,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:03:17,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:03:17,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:03:17,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:03:17,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:03:17,839 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 10:03:17,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:03:17,900 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2022-12-14 10:03:17,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:03:17,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 17 [2022-12-14 10:03:17,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:03:17,901 INFO L225 Difference]: With dead ends: 39 [2022-12-14 10:03:17,901 INFO L226 Difference]: Without dead ends: 38 [2022-12-14 10:03:17,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:03:17,902 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 7 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:03:17,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 94 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:03:17,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-12-14 10:03:17,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-12-14 10:03:17,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 28 states have internal predecessors, (28), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2022-12-14 10:03:17,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2022-12-14 10:03:17,906 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 17 [2022-12-14 10:03:17,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:03:17,906 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2022-12-14 10:03:17,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 10:03:17,907 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2022-12-14 10:03:17,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 10:03:17,907 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:03:17,907 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:03:17,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 10:03:17,908 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 10:03:17,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:03:17,908 INFO L85 PathProgramCache]: Analyzing trace with hash 615071712, now seen corresponding path program 1 times [2022-12-14 10:03:17,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:03:17,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330560782] [2022-12-14 10:03:17,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:03:17,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:03:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:03:17,966 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:03:17,966 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:03:17,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330560782] [2022-12-14 10:03:17,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330560782] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:03:17,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:03:17,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:03:17,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16072408] [2022-12-14 10:03:17,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:03:17,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:03:17,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:03:17,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:03:17,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:03:17,968 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 10:03:17,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:03:17,994 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2022-12-14 10:03:17,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:03:17,994 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 29 [2022-12-14 10:03:17,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:03:17,995 INFO L225 Difference]: With dead ends: 38 [2022-12-14 10:03:17,995 INFO L226 Difference]: Without dead ends: 37 [2022-12-14 10:03:17,996 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 10:03:17,997 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 9 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:03:17,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 96 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:03:17,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-12-14 10:03:18,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-12-14 10:03:18,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 27 states have internal predecessors, (27), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2022-12-14 10:03:18,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2022-12-14 10:03:18,002 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 29 [2022-12-14 10:03:18,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:03:18,002 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2022-12-14 10:03:18,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 10:03:18,003 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2022-12-14 10:03:18,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 10:03:18,003 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:03:18,003 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:03:18,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 10:03:18,003 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 10:03:18,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:03:18,004 INFO L85 PathProgramCache]: Analyzing trace with hash 615071936, now seen corresponding path program 1 times [2022-12-14 10:03:18,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:03:18,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269318558] [2022-12-14 10:03:18,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:03:18,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:03:18,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:03:18,060 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:03:18,060 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:03:18,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269318558] [2022-12-14 10:03:18,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269318558] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:03:18,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:03:18,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:03:18,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146932529] [2022-12-14 10:03:18,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:03:18,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:03:18,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:03:18,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:03:18,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:03:18,062 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 10:03:18,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:03:18,097 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2022-12-14 10:03:18,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:03:18,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 29 [2022-12-14 10:03:18,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:03:18,098 INFO L225 Difference]: With dead ends: 37 [2022-12-14 10:03:18,098 INFO L226 Difference]: Without dead ends: 36 [2022-12-14 10:03:18,098 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 10:03:18,099 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 8 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:03:18,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 94 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:03:18,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-12-14 10:03:18,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-12-14 10:03:18,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 26 states have internal predecessors, (26), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2022-12-14 10:03:18,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2022-12-14 10:03:18,103 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 29 [2022-12-14 10:03:18,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:03:18,103 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2022-12-14 10:03:18,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 10:03:18,104 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2022-12-14 10:03:18,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 10:03:18,104 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:03:18,104 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:03:18,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 10:03:18,104 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 10:03:18,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:03:18,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1887353993, now seen corresponding path program 1 times [2022-12-14 10:03:18,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:03:18,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558816327] [2022-12-14 10:03:18,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:03:18,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:03:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:03:18,160 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:03:18,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:03:18,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558816327] [2022-12-14 10:03:18,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558816327] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:03:18,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:03:18,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:03:18,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927609702] [2022-12-14 10:03:18,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:03:18,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:03:18,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:03:18,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:03:18,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:03:18,162 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 10:03:18,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:03:18,188 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2022-12-14 10:03:18,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:03:18,188 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 30 [2022-12-14 10:03:18,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:03:18,189 INFO L225 Difference]: With dead ends: 36 [2022-12-14 10:03:18,189 INFO L226 Difference]: Without dead ends: 33 [2022-12-14 10:03:18,189 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 10:03:18,189 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 5 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:03:18,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 95 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:03:18,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-12-14 10:03:18,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-12-14 10:03:18,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 20 states have (on average 1.15) internal successors, (23), 23 states have internal predecessors, (23), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2022-12-14 10:03:18,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2022-12-14 10:03:18,193 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 30 [2022-12-14 10:03:18,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:03:18,193 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2022-12-14 10:03:18,193 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 10:03:18,193 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2022-12-14 10:03:18,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 10:03:18,194 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:03:18,194 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:03:18,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 10:03:18,194 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-14 10:03:18,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:03:18,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1887360944, now seen corresponding path program 1 times [2022-12-14 10:03:18,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:03:18,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029208551] [2022-12-14 10:03:18,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:03:18,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:03:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:03:18,246 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-14 10:03:18,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:03:18,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029208551] [2022-12-14 10:03:18,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029208551] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:03:18,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:03:18,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:03:18,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951090035] [2022-12-14 10:03:18,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:03:18,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:03:18,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:03:18,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:03:18,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:03:18,248 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 10:03:18,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:03:18,272 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions. [2022-12-14 10:03:18,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:03:18,273 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 30 [2022-12-14 10:03:18,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:03:18,273 INFO L225 Difference]: With dead ends: 33 [2022-12-14 10:03:18,273 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 10:03:18,274 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 10:03:18,274 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 2 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:03:18,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 91 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:03:18,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 10:03:18,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 10:03:18,275 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 10:03:18,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 10:03:18,276 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2022-12-14 10:03:18,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:03:18,276 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 10:03:18,276 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-14 10:03:18,276 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 10:03:18,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 10:03:18,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-12-14 10:03:18,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-12-14 10:03:18,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-12-14 10:03:18,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-12-14 10:03:18,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-12-14 10:03:18,278 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-12-14 10:03:18,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-12-14 10:03:18,279 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-12-14 10:03:18,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 10:03:18,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 10:03:18,303 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2022-12-14 10:03:18,303 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-12-14 10:03:18,303 INFO L899 garLoopResultBuilder]: For program point globalReturnsTrueOrFalseEXIT(lines 1518 1521) no Hoare annotation was computed. [2022-12-14 10:03:18,303 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1518 1521) the Hoare annotation is: true [2022-12-14 10:03:18,303 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2022-12-14 10:03:18,304 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-12-14 10:03:18,304 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1577) no Hoare annotation was computed. [2022-12-14 10:03:18,304 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1610) no Hoare annotation was computed. [2022-12-14 10:03:18,304 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1564) no Hoare annotation was computed. [2022-12-14 10:03:18,304 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1602) no Hoare annotation was computed. [2022-12-14 10:03:18,304 INFO L899 garLoopResultBuilder]: For program point L1564(line 1564) no Hoare annotation was computed. [2022-12-14 10:03:18,304 INFO L899 garLoopResultBuilder]: For program point L1564-1(line 1564) no Hoare annotation was computed. [2022-12-14 10:03:18,304 INFO L902 garLoopResultBuilder]: At program point L1626(line 1626) the Hoare annotation is: true [2022-12-14 10:03:18,304 INFO L902 garLoopResultBuilder]: At program point L1626-1(line 1626) the Hoare annotation is: true [2022-12-14 10:03:18,304 INFO L899 garLoopResultBuilder]: For program point L1560(line 1560) no Hoare annotation was computed. [2022-12-14 10:03:18,305 INFO L899 garLoopResultBuilder]: For program point L1560-1(lines 1560 1585) no Hoare annotation was computed. [2022-12-14 10:03:18,305 INFO L895 garLoopResultBuilder]: At program point L1552(line 1552) the Hoare annotation is: (<= (select (select |#memory_int| |ULTIMATE.start_goodB2G_~#data~0#1.base|) |ULTIMATE.start_goodB2G_~#data~0#1.offset|) 2147483647) [2022-12-14 10:03:18,305 INFO L899 garLoopResultBuilder]: For program point L1552-1(line 1552) no Hoare annotation was computed. [2022-12-14 10:03:18,305 INFO L895 garLoopResultBuilder]: At program point L1552-4(lines 1552 1559) the Hoare annotation is: (<= (select (select |#memory_int| |ULTIMATE.start_goodB2G_~#data~0#1.base|) |ULTIMATE.start_goodB2G_~#data~0#1.offset|) 2147483647) [2022-12-14 10:03:18,305 INFO L899 garLoopResultBuilder]: For program point L1610(line 1610) no Hoare annotation was computed. [2022-12-14 10:03:18,305 INFO L899 garLoopResultBuilder]: For program point L1577(line 1577) no Hoare annotation was computed. [2022-12-14 10:03:18,305 INFO L899 garLoopResultBuilder]: For program point L1610-1(line 1610) no Hoare annotation was computed. [2022-12-14 10:03:18,305 INFO L899 garLoopResultBuilder]: For program point L1577-1(line 1577) no Hoare annotation was computed. [2022-12-14 10:03:18,305 INFO L899 garLoopResultBuilder]: For program point L1602(line 1602) no Hoare annotation was computed. [2022-12-14 10:03:18,305 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1564) no Hoare annotation was computed. [2022-12-14 10:03:18,306 INFO L899 garLoopResultBuilder]: For program point L1602-1(line 1602) no Hoare annotation was computed. [2022-12-14 10:03:18,306 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 10:03:18,306 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1602) no Hoare annotation was computed. [2022-12-14 10:03:18,306 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 10:03:18,306 INFO L895 garLoopResultBuilder]: At program point L1570(line 1570) the Hoare annotation is: (<= (select (select |#memory_int| |ULTIMATE.start_goodB2G_~#data~0#1.base|) |ULTIMATE.start_goodB2G_~#data~0#1.offset|) 2147483647) [2022-12-14 10:03:18,306 INFO L899 garLoopResultBuilder]: For program point L1599(line 1599) no Hoare annotation was computed. [2022-12-14 10:03:18,306 INFO L895 garLoopResultBuilder]: At program point L1566(line 1566) the Hoare annotation is: (<= (select (select |#memory_int| |ULTIMATE.start_goodB2G_~#data~0#1.base|) |ULTIMATE.start_goodB2G_~#data~0#1.offset|) 2147483647) [2022-12-14 10:03:18,306 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1577) no Hoare annotation was computed. [2022-12-14 10:03:18,306 INFO L899 garLoopResultBuilder]: For program point L1599-1(lines 1599 1614) no Hoare annotation was computed. [2022-12-14 10:03:18,306 INFO L899 garLoopResultBuilder]: For program point L1562(lines 1562 1571) no Hoare annotation was computed. [2022-12-14 10:03:18,306 INFO L902 garLoopResultBuilder]: At program point L1624(line 1624) the Hoare annotation is: true [2022-12-14 10:03:18,306 INFO L899 garLoopResultBuilder]: For program point L1624-1(line 1624) no Hoare annotation was computed. [2022-12-14 10:03:18,307 INFO L895 garLoopResultBuilder]: At program point L1591(line 1591) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodG2B_~data~1#1| 2)) [2022-12-14 10:03:18,307 INFO L899 garLoopResultBuilder]: For program point L1591-1(line 1591) no Hoare annotation was computed. [2022-12-14 10:03:18,307 INFO L895 garLoopResultBuilder]: At program point L1591-4(lines 1591 1598) the Hoare annotation is: (let ((.cse0 (+ |ULTIMATE.start_goodG2B_~data~1#1| 2))) (and (<= .cse0 0) (<= 0 .cse0))) [2022-12-14 10:03:18,307 INFO L895 garLoopResultBuilder]: At program point L1583(line 1583) the Hoare annotation is: (<= (select (select |#memory_int| |ULTIMATE.start_goodB2G_~#data~0#1.base|) |ULTIMATE.start_goodB2G_~#data~0#1.offset|) 2147483647) [2022-12-14 10:03:18,307 INFO L899 garLoopResultBuilder]: For program point L1583-1(lines 1560 1585) no Hoare annotation was computed. [2022-12-14 10:03:18,307 INFO L902 garLoopResultBuilder]: At program point L1612(line 1612) the Hoare annotation is: true [2022-12-14 10:03:18,307 INFO L895 garLoopResultBuilder]: At program point L1579(line 1579) the Hoare annotation is: (<= (select (select |#memory_int| |ULTIMATE.start_goodB2G_~#data~0#1.base|) |ULTIMATE.start_goodB2G_~#data~0#1.offset|) 2147483647) [2022-12-14 10:03:18,307 INFO L899 garLoopResultBuilder]: For program point L1612-1(lines 1587 1615) no Hoare annotation was computed. [2022-12-14 10:03:18,307 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1610) no Hoare annotation was computed. [2022-12-14 10:03:18,307 INFO L899 garLoopResultBuilder]: For program point L1575(lines 1575 1584) no Hoare annotation was computed. [2022-12-14 10:03:18,308 INFO L902 garLoopResultBuilder]: At program point L1604(line 1604) the Hoare annotation is: true [2022-12-14 10:03:18,310 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:03:18,311 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:03:18,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:03:18 BoogieIcfgContainer [2022-12-14 10:03:18,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:03:18,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:03:18,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:03:18,318 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:03:18,318 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:03:16" (3/4) ... [2022-12-14 10:03:18,320 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 10:03:18,324 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-12-14 10:03:18,324 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure globalReturnsTrueOrFalse [2022-12-14 10:03:18,325 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-12-14 10:03:18,328 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-12-14 10:03:18,328 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-12-14 10:03:18,328 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 10:03:18,329 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 10:03:18,354 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cb8b393-d5ce-4a15-92bc-eab640a7e2b7/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 10:03:18,354 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:03:18,354 INFO L158 Benchmark]: Toolchain (without parser) took 2887.38ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 103.7MB in the beginning and 81.9MB in the end (delta: 21.8MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2022-12-14 10:03:18,355 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 138.4MB. Free memory was 112.9MB in the beginning and 112.9MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:03:18,355 INFO L158 Benchmark]: CACSL2BoogieTranslator took 802.12ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 103.7MB in the beginning and 125.6MB in the end (delta: -21.9MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. [2022-12-14 10:03:18,355 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.81ms. Allocated memory is still 167.8MB. Free memory was 125.6MB in the beginning and 122.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 10:03:18,355 INFO L158 Benchmark]: Boogie Preprocessor took 26.51ms. Allocated memory is still 167.8MB. Free memory was 122.4MB in the beginning and 121.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:03:18,356 INFO L158 Benchmark]: RCFGBuilder took 394.78ms. Allocated memory is still 167.8MB. Free memory was 121.4MB in the beginning and 101.5MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 10:03:18,356 INFO L158 Benchmark]: TraceAbstraction took 1571.32ms. Allocated memory is still 167.8MB. Free memory was 101.5MB in the beginning and 85.0MB in the end (delta: 16.4MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2022-12-14 10:03:18,356 INFO L158 Benchmark]: Witness Printer took 36.23ms. Allocated memory is still 167.8MB. Free memory was 85.0MB in the beginning and 81.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 10:03:18,358 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 138.4MB. Free memory was 112.9MB in the beginning and 112.9MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 802.12ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 103.7MB in the beginning and 125.6MB in the end (delta: -21.9MB). Peak memory consumption was 65.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.81ms. Allocated memory is still 167.8MB. Free memory was 125.6MB in the beginning and 122.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.51ms. Allocated memory is still 167.8MB. Free memory was 122.4MB in the beginning and 121.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 394.78ms. Allocated memory is still 167.8MB. Free memory was 121.4MB in the beginning and 101.5MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1571.32ms. Allocated memory is still 167.8MB. Free memory was 101.5MB in the beginning and 85.0MB in the end (delta: 16.4MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * Witness Printer took 36.23ms. Allocated memory is still 167.8MB. Free memory was 85.0MB in the beginning and 81.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1564]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1577]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1577]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1602]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1602]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1610]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1610]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 48 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 55 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 783 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 508 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 300 IncrementalHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 275 mSDtfsCounter, 300 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 25 PreInvPairs, 25 NumberOfFragments, 66 HoareAnnotationTreeSize, 25 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 332 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 64/64 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 8 specifications checked. All of them hold - InvariantResult [Line: 1626]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-14 10:03:18,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cb8b393-d5ce-4a15-92bc-eab640a7e2b7/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