./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_15_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b26c04-1a55-4c03-9eed-ecce0c9df5bc/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b26c04-1a55-4c03-9eed-ecce0c9df5bc/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b26c04-1a55-4c03-9eed-ecce0c9df5bc/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b26c04-1a55-4c03-9eed-ecce0c9df5bc/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_15_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b26c04-1a55-4c03-9eed-ecce0c9df5bc/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b26c04-1a55-4c03-9eed-ecce0c9df5bc/bin/utaipan-Xvt2sAort0 --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 479865b506db358c4c0b4062b91ef7b3e76c941daf559425e6d3b287e14c2722 --- 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-e04fb08 [2022-11-16 20:31:54,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 20:31:54,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 20:31:54,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 20:31:54,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 20:31:54,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 20:31:54,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 20:31:54,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 20:31:54,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 20:31:54,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 20:31:54,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 20:31:54,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 20:31:54,407 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 20:31:54,409 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 20:31:54,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 20:31:54,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 20:31:54,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 20:31:54,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 20:31:54,416 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 20:31:54,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 20:31:54,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 20:31:54,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 20:31:54,430 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 20:31:54,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 20:31:54,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 20:31:54,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 20:31:54,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 20:31:54,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 20:31:54,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 20:31:54,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 20:31:54,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 20:31:54,442 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 20:31:54,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 20:31:54,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 20:31:54,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 20:31:54,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 20:31:54,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 20:31:54,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 20:31:54,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 20:31:54,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 20:31:54,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 20:31:54,450 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b26c04-1a55-4c03-9eed-ecce0c9df5bc/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-16 20:31:54,483 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 20:31:54,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 20:31:54,484 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 20:31:54,484 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 20:31:54,485 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 20:31:54,485 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 20:31:54,486 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 20:31:54,486 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 20:31:54,486 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 20:31:54,486 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 20:31:54,487 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 20:31:54,488 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 20:31:54,488 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 20:31:54,488 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 20:31:54,488 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 20:31:54,489 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 20:31:54,489 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 20:31:54,489 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 20:31:54,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 20:31:54,490 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 20:31:54,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 20:31:54,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 20:31:54,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 20:31:54,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 20:31:54,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 20:31:54,493 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 20:31:54,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 20:31:54,493 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 20:31:54,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 20:31:54,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 20:31:54,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 20:31:54,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:31:54,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 20:31:54,495 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 20:31:54,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 20:31:54,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 20:31:54,495 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 20:31:54,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 20:31:54,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 20:31:54,496 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 20:31:54,496 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_41b26c04-1a55-4c03-9eed-ecce0c9df5bc/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b26c04-1a55-4c03-9eed-ecce0c9df5bc/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 479865b506db358c4c0b4062b91ef7b3e76c941daf559425e6d3b287e14c2722 [2022-11-16 20:31:54,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 20:31:54,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 20:31:54,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 20:31:54,888 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 20:31:54,889 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 20:31:54,890 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b26c04-1a55-4c03-9eed-ecce0c9df5bc/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_15_good.i [2022-11-16 20:31:54,963 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b26c04-1a55-4c03-9eed-ecce0c9df5bc/bin/utaipan-Xvt2sAort0/data/d74f5f149/b468e7caa7ad4596b7a3fb9f0fa321d3/FLAGe591548d1 [2022-11-16 20:31:55,719 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 20:31:55,720 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b26c04-1a55-4c03-9eed-ecce0c9df5bc/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_predec_15_good.i [2022-11-16 20:31:55,751 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b26c04-1a55-4c03-9eed-ecce0c9df5bc/bin/utaipan-Xvt2sAort0/data/d74f5f149/b468e7caa7ad4596b7a3fb9f0fa321d3/FLAGe591548d1 [2022-11-16 20:31:55,851 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b26c04-1a55-4c03-9eed-ecce0c9df5bc/bin/utaipan-Xvt2sAort0/data/d74f5f149/b468e7caa7ad4596b7a3fb9f0fa321d3 [2022-11-16 20:31:55,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 20:31:55,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 20:31:55,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 20:31:55,862 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 20:31:55,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 20:31:55,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:31:55" (1/1) ... [2022-11-16 20:31:55,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@635505eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:55, skipping insertion in model container [2022-11-16 20:31:55,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:31:55" (1/1) ... [2022-11-16 20:31:55,877 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 20:31:55,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 20:31:56,353 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 20:31:56,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:31:56,883 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 20:31:56,902 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-16 20:31:56,966 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:31:57,102 INFO L208 MainTranslator]: Completed translation [2022-11-16 20:31:57,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:57 WrapperNode [2022-11-16 20:31:57,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 20:31:57,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 20:31:57,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 20:31:57,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 20:31:57,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:57" (1/1) ... [2022-11-16 20:31:57,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:57" (1/1) ... [2022-11-16 20:31:57,188 INFO L138 Inliner]: procedures = 503, calls = 163, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 239 [2022-11-16 20:31:57,194 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 20:31:57,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 20:31:57,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 20:31:57,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 20:31:57,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:57" (1/1) ... [2022-11-16 20:31:57,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:57" (1/1) ... [2022-11-16 20:31:57,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:57" (1/1) ... [2022-11-16 20:31:57,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:57" (1/1) ... [2022-11-16 20:31:57,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:57" (1/1) ... [2022-11-16 20:31:57,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:57" (1/1) ... [2022-11-16 20:31:57,254 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:57" (1/1) ... [2022-11-16 20:31:57,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:57" (1/1) ... [2022-11-16 20:31:57,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 20:31:57,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 20:31:57,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 20:31:57,265 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 20:31:57,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:57" (1/1) ... [2022-11-16 20:31:57,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:31:57,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b26c04-1a55-4c03-9eed-ecce0c9df5bc/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:31:57,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b26c04-1a55-4c03-9eed-ecce0c9df5bc/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 20:31:57,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b26c04-1a55-4c03-9eed-ecce0c9df5bc/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 20:31:57,361 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-16 20:31:57,362 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-16 20:31:57,362 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-16 20:31:57,362 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-16 20:31:57,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 20:31:57,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 20:31:57,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 20:31:57,363 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-16 20:31:57,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 20:31:57,559 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 20:31:57,562 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 20:31:57,972 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 20:31:58,045 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 20:31:58,046 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 20:31:58,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:31:58 BoogieIcfgContainer [2022-11-16 20:31:58,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 20:31:58,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 20:31:58,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 20:31:58,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 20:31:58,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:31:55" (1/3) ... [2022-11-16 20:31:58,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e33876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:31:58, skipping insertion in model container [2022-11-16 20:31:58,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:31:57" (2/3) ... [2022-11-16 20:31:58,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e33876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:31:58, skipping insertion in model container [2022-11-16 20:31:58,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:31:58" (3/3) ... [2022-11-16 20:31:58,061 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_predec_15_good.i [2022-11-16 20:31:58,081 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 20:31:58,081 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-16 20:31:58,154 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 20:31:58,163 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;@1e13461e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 20:31:58,163 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-16 20:31:58,168 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 60 states have internal predecessors, (63), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 10 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-16 20:31:58,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 20:31:58,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:31:58,176 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:31:58,177 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 20:31:58,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:31:58,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1580911178, now seen corresponding path program 1 times [2022-11-16 20:31:58,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:31:58,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626384672] [2022-11-16 20:31:58,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:31:58,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:31:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:31:58,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:31:58,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:31:58,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626384672] [2022-11-16 20:31:58,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626384672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:31:58,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:31:58,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:31:58,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379644859] [2022-11-16 20:31:58,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:31:58,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:31:58,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:31:58,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:31:58,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:31:58,598 INFO L87 Difference]: Start difference. First operand has 65 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 60 states have internal predecessors, (63), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 10 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 20:31:58,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:31:58,682 INFO L93 Difference]: Finished difference Result 167 states and 244 transitions. [2022-11-16 20:31:58,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:31:58,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-16 20:31:58,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:31:58,694 INFO L225 Difference]: With dead ends: 167 [2022-11-16 20:31:58,694 INFO L226 Difference]: Without dead ends: 100 [2022-11-16 20:31:58,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:31:58,701 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 47 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:31:58,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 174 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:31:58,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-16 20:31:58,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 62. [2022-11-16 20:31:58,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 39 states have (on average 1.6153846153846154) internal successors, (63), 58 states have internal predecessors, (63), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-16 20:31:58,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 89 transitions. [2022-11-16 20:31:58,753 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 89 transitions. Word has length 11 [2022-11-16 20:31:58,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:31:58,754 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 89 transitions. [2022-11-16 20:31:58,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 20:31:58,755 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 89 transitions. [2022-11-16 20:31:58,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-16 20:31:58,756 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:31:58,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:31:58,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 20:31:58,757 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)] === [2022-11-16 20:31:58,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:31:58,757 INFO L85 PathProgramCache]: Analyzing trace with hash -819245347, now seen corresponding path program 1 times [2022-11-16 20:31:58,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:31:58,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191739038] [2022-11-16 20:31:58,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:31:58,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:31:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:31:58,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:31:58,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:31:58,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191739038] [2022-11-16 20:31:58,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191739038] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:31:58,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:31:58,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:31:58,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765156925] [2022-11-16 20:31:58,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:31:58,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:31:58,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:31:58,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:31:58,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:31:58,860 INFO L87 Difference]: Start difference. First operand 62 states and 89 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 20:31:58,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:31:58,914 INFO L93 Difference]: Finished difference Result 105 states and 149 transitions. [2022-11-16 20:31:58,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:31:58,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-16 20:31:58,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:31:58,918 INFO L225 Difference]: With dead ends: 105 [2022-11-16 20:31:58,919 INFO L226 Difference]: Without dead ends: 51 [2022-11-16 20:31:58,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:31:58,921 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 1 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:31:58,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 124 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:31:58,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-16 20:31:58,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-16 20:31:58,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 32 states have (on average 1.53125) internal successors, (49), 47 states have internal predecessors, (49), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-16 20:31:58,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 71 transitions. [2022-11-16 20:31:58,943 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 71 transitions. Word has length 12 [2022-11-16 20:31:58,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:31:58,944 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 71 transitions. [2022-11-16 20:31:58,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 20:31:58,944 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 71 transitions. [2022-11-16 20:31:58,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 20:31:58,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:31:58,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:31:58,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 20:31:58,946 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 20:31:58,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:31:58,949 INFO L85 PathProgramCache]: Analyzing trace with hash -782652151, now seen corresponding path program 1 times [2022-11-16 20:31:58,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:31:58,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020084873] [2022-11-16 20:31:58,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:31:58,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:31:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:31:59,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 20:31:59,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:31:59,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020084873] [2022-11-16 20:31:59,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020084873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:31:59,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:31:59,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:31:59,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942044172] [2022-11-16 20:31:59,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:31:59,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:31:59,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:31:59,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:31:59,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:31:59,061 INFO L87 Difference]: Start difference. First operand 51 states and 71 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 20:31:59,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:31:59,125 INFO L93 Difference]: Finished difference Result 92 states and 127 transitions. [2022-11-16 20:31:59,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:31:59,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-16 20:31:59,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:31:59,128 INFO L225 Difference]: With dead ends: 92 [2022-11-16 20:31:59,129 INFO L226 Difference]: Without dead ends: 51 [2022-11-16 20:31:59,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:31:59,132 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 2 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:31:59,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 117 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:31:59,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-11-16 20:31:59,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-11-16 20:31:59,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 32 states have (on average 1.5) internal successors, (48), 46 states have internal predecessors, (48), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-16 20:31:59,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 70 transitions. [2022-11-16 20:31:59,153 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 70 transitions. Word has length 15 [2022-11-16 20:31:59,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:31:59,153 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 70 transitions. [2022-11-16 20:31:59,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 20:31:59,154 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 70 transitions. [2022-11-16 20:31:59,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-16 20:31:59,156 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:31:59,156 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:31:59,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 20:31:59,157 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 20:31:59,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:31:59,158 INFO L85 PathProgramCache]: Analyzing trace with hash -870808288, now seen corresponding path program 1 times [2022-11-16 20:31:59,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:31:59,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595363603] [2022-11-16 20:31:59,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:31:59,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:31:59,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:31:59,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 20:31:59,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:31:59,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595363603] [2022-11-16 20:31:59,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595363603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:31:59,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:31:59,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:31:59,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503943087] [2022-11-16 20:31:59,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:31:59,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:31:59,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:31:59,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:31:59,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:31:59,254 INFO L87 Difference]: Start difference. First operand 51 states and 70 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 20:31:59,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:31:59,302 INFO L93 Difference]: Finished difference Result 92 states and 126 transitions. [2022-11-16 20:31:59,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:31:59,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2022-11-16 20:31:59,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:31:59,305 INFO L225 Difference]: With dead ends: 92 [2022-11-16 20:31:59,306 INFO L226 Difference]: Without dead ends: 50 [2022-11-16 20:31:59,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:31:59,308 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:31:59,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:31:59,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-16 20:31:59,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-16 20:31:59,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 32 states have (on average 1.46875) internal successors, (47), 45 states have internal predecessors, (47), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-16 20:31:59,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 67 transitions. [2022-11-16 20:31:59,327 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 67 transitions. Word has length 17 [2022-11-16 20:31:59,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:31:59,328 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 67 transitions. [2022-11-16 20:31:59,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 20:31:59,328 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 67 transitions. [2022-11-16 20:31:59,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 20:31:59,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:31:59,330 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:31:59,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 20:31:59,330 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 20:31:59,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:31:59,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1634167547, now seen corresponding path program 1 times [2022-11-16 20:31:59,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:31:59,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428272143] [2022-11-16 20:31:59,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:31:59,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:31:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:31:59,453 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 20:31:59,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:31:59,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428272143] [2022-11-16 20:31:59,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428272143] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:31:59,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:31:59,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:31:59,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27185836] [2022-11-16 20:31:59,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:31:59,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:31:59,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:31:59,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:31:59,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:31:59,457 INFO L87 Difference]: Start difference. First operand 50 states and 67 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 20:31:59,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:31:59,508 INFO L93 Difference]: Finished difference Result 108 states and 144 transitions. [2022-11-16 20:31:59,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:31:59,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2022-11-16 20:31:59,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:31:59,516 INFO L225 Difference]: With dead ends: 108 [2022-11-16 20:31:59,516 INFO L226 Difference]: Without dead ends: 77 [2022-11-16 20:31:59,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:31:59,518 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 26 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:31:59,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 116 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:31:59,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-16 20:31:59,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 53. [2022-11-16 20:31:59,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 35 states have (on average 1.457142857142857) internal successors, (51), 48 states have internal predecessors, (51), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 7 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-16 20:31:59,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 71 transitions. [2022-11-16 20:31:59,533 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 71 transitions. Word has length 19 [2022-11-16 20:31:59,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:31:59,538 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 71 transitions. [2022-11-16 20:31:59,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 20:31:59,539 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 71 transitions. [2022-11-16 20:31:59,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 20:31:59,540 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:31:59,540 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:31:59,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 20:31:59,541 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 20:31:59,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:31:59,542 INFO L85 PathProgramCache]: Analyzing trace with hash -825094548, now seen corresponding path program 1 times [2022-11-16 20:31:59,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:31:59,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057741388] [2022-11-16 20:31:59,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:31:59,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:31:59,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:31:59,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 20:31:59,606 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:31:59,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057741388] [2022-11-16 20:31:59,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057741388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:31:59,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:31:59,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:31:59,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487808875] [2022-11-16 20:31:59,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:31:59,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:31:59,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:31:59,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:31:59,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:31:59,609 INFO L87 Difference]: Start difference. First operand 53 states and 71 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 20:31:59,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:31:59,653 INFO L93 Difference]: Finished difference Result 82 states and 109 transitions. [2022-11-16 20:31:59,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:31:59,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2022-11-16 20:31:59,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:31:59,655 INFO L225 Difference]: With dead ends: 82 [2022-11-16 20:31:59,655 INFO L226 Difference]: Without dead ends: 43 [2022-11-16 20:31:59,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:31:59,657 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 1 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:31:59,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 93 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:31:59,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-16 20:31:59,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-11-16 20:31:59,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 38 states have internal predecessors, (39), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-16 20:31:59,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2022-11-16 20:31:59,677 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 55 transitions. Word has length 20 [2022-11-16 20:31:59,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:31:59,677 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 55 transitions. [2022-11-16 20:31:59,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 20:31:59,677 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2022-11-16 20:31:59,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 20:31:59,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:31:59,678 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:31:59,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 20:31:59,679 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 20:31:59,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:31:59,679 INFO L85 PathProgramCache]: Analyzing trace with hash 1113528717, now seen corresponding path program 1 times [2022-11-16 20:31:59,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:31:59,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146380947] [2022-11-16 20:31:59,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:31:59,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:31:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:31:59,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 20:31:59,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:31:59,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146380947] [2022-11-16 20:31:59,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146380947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:31:59,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:31:59,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:31:59,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560097414] [2022-11-16 20:31:59,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:31:59,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:31:59,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:31:59,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:31:59,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:31:59,743 INFO L87 Difference]: Start difference. First operand 43 states and 55 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 20:31:59,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:31:59,764 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2022-11-16 20:31:59,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:31:59,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-11-16 20:31:59,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:31:59,765 INFO L225 Difference]: With dead ends: 69 [2022-11-16 20:31:59,765 INFO L226 Difference]: Without dead ends: 41 [2022-11-16 20:31:59,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:31:59,766 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 2 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:31:59,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 81 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:31:59,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-11-16 20:31:59,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-11-16 20:31:59,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 35 states have internal predecessors, (36), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-16 20:31:59,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2022-11-16 20:31:59,779 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 23 [2022-11-16 20:31:59,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:31:59,779 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2022-11-16 20:31:59,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 20:31:59,780 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2022-11-16 20:31:59,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-16 20:31:59,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:31:59,780 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:31:59,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 20:31:59,781 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 20:31:59,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:31:59,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1633733435, now seen corresponding path program 1 times [2022-11-16 20:31:59,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:31:59,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199273607] [2022-11-16 20:31:59,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:31:59,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:31:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:31:59,885 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 20:31:59,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:31:59,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199273607] [2022-11-16 20:31:59,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199273607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:31:59,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:31:59,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:31:59,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025540157] [2022-11-16 20:31:59,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:31:59,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:31:59,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:31:59,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:31:59,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:31:59,897 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-11-16 20:31:59,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:31:59,932 INFO L93 Difference]: Finished difference Result 59 states and 75 transitions. [2022-11-16 20:31:59,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:31:59,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 26 [2022-11-16 20:31:59,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:31:59,934 INFO L225 Difference]: With dead ends: 59 [2022-11-16 20:31:59,934 INFO L226 Difference]: Without dead ends: 58 [2022-11-16 20:31:59,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:31:59,935 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 15 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:31:59,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 82 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:31:59,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-16 20:31:59,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 44. [2022-11-16 20:31:59,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 31 states have (on average 1.2903225806451613) internal successors, (40), 37 states have internal predecessors, (40), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-16 20:31:59,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2022-11-16 20:31:59,940 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 26 [2022-11-16 20:31:59,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:31:59,941 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2022-11-16 20:31:59,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-11-16 20:31:59,941 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2022-11-16 20:31:59,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-16 20:31:59,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:31:59,942 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:31:59,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 20:31:59,943 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 20:31:59,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:31:59,943 INFO L85 PathProgramCache]: Analyzing trace with hash -893870923, now seen corresponding path program 1 times [2022-11-16 20:31:59,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:31:59,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228719610] [2022-11-16 20:31:59,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:31:59,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:31:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:32:00,009 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 20:32:00,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:32:00,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228719610] [2022-11-16 20:32:00,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228719610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:32:00,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:32:00,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:32:00,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126488558] [2022-11-16 20:32:00,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:32:00,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:32:00,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:32:00,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:32:00,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:32:00,012 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-11-16 20:32:00,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:32:00,037 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2022-11-16 20:32:00,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:32:00,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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 27 [2022-11-16 20:32:00,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:32:00,038 INFO L225 Difference]: With dead ends: 54 [2022-11-16 20:32:00,038 INFO L226 Difference]: Without dead ends: 53 [2022-11-16 20:32:00,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:32:00,039 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 15 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:32:00,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 71 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:32:00,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-16 20:32:00,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 43. [2022-11-16 20:32:00,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 36 states have internal predecessors, (39), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-16 20:32:00,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2022-11-16 20:32:00,044 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 27 [2022-11-16 20:32:00,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:32:00,045 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2022-11-16 20:32:00,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-11-16 20:32:00,045 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2022-11-16 20:32:00,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-16 20:32:00,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:32:00,046 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:32:00,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 20:32:00,047 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 20:32:00,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:32:00,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1825466361, now seen corresponding path program 1 times [2022-11-16 20:32:00,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:32:00,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954758252] [2022-11-16 20:32:00,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:32:00,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:32:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:32:00,085 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 20:32:00,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:32:00,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954758252] [2022-11-16 20:32:00,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954758252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:32:00,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:32:00,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:32:00,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076643943] [2022-11-16 20:32:00,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:32:00,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:32:00,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:32:00,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:32:00,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:32:00,088 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 20:32:00,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:32:00,106 INFO L93 Difference]: Finished difference Result 61 states and 74 transitions. [2022-11-16 20:32:00,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:32:00,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2022-11-16 20:32:00,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:32:00,108 INFO L225 Difference]: With dead ends: 61 [2022-11-16 20:32:00,108 INFO L226 Difference]: Without dead ends: 38 [2022-11-16 20:32:00,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:32:00,109 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:32:00,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:32:00,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-16 20:32:00,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-16 20:32:00,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 32 states have internal predecessors, (33), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-16 20:32:00,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2022-11-16 20:32:00,114 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 29 [2022-11-16 20:32:00,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:32:00,114 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2022-11-16 20:32:00,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-16 20:32:00,115 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2022-11-16 20:32:00,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-16 20:32:00,115 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:32:00,115 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:32:00,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 20:32:00,116 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 20:32:00,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:32:00,116 INFO L85 PathProgramCache]: Analyzing trace with hash -645261221, now seen corresponding path program 1 times [2022-11-16 20:32:00,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:32:00,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513312975] [2022-11-16 20:32:00,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:32:00,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:32:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:32:00,157 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 20:32:00,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:32:00,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513312975] [2022-11-16 20:32:00,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513312975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:32:00,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:32:00,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:32:00,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713580603] [2022-11-16 20:32:00,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:32:00,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:32:00,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:32:00,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:32:00,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:32:00,160 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-11-16 20:32:00,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:32:00,179 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2022-11-16 20:32:00,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:32:00,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 31 [2022-11-16 20:32:00,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:32:00,180 INFO L225 Difference]: With dead ends: 50 [2022-11-16 20:32:00,181 INFO L226 Difference]: Without dead ends: 36 [2022-11-16 20:32:00,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:32:00,182 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 3 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:32:00,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 60 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:32:00,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-16 20:32:00,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-16 20:32:00,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 29 states have internal predecessors, (30), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-16 20:32:00,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2022-11-16 20:32:00,186 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 31 [2022-11-16 20:32:00,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:32:00,186 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2022-11-16 20:32:00,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2022-11-16 20:32:00,186 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2022-11-16 20:32:00,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-16 20:32:00,195 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:32:00,195 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:32:00,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 20:32:00,196 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 20:32:00,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:32:00,196 INFO L85 PathProgramCache]: Analyzing trace with hash -816234911, now seen corresponding path program 1 times [2022-11-16 20:32:00,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:32:00,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197707885] [2022-11-16 20:32:00,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:32:00,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:32:00,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:32:00,256 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 20:32:00,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:32:00,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197707885] [2022-11-16 20:32:00,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197707885] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:32:00,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:32:00,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:32:00,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894519854] [2022-11-16 20:32:00,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:32:00,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:32:00,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:32:00,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:32:00,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:32:00,260 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-16 20:32:00,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:32:00,284 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2022-11-16 20:32:00,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:32:00,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 35 [2022-11-16 20:32:00,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:32:00,286 INFO L225 Difference]: With dead ends: 41 [2022-11-16 20:32:00,286 INFO L226 Difference]: Without dead ends: 40 [2022-11-16 20:32:00,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:32:00,287 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 2 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:32:00,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 60 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:32:00,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-16 20:32:00,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2022-11-16 20:32:00,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 30 states have (on average 1.1) internal successors, (33), 32 states have internal predecessors, (33), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-16 20:32:00,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2022-11-16 20:32:00,296 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 35 [2022-11-16 20:32:00,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:32:00,296 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2022-11-16 20:32:00,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-16 20:32:00,297 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2022-11-16 20:32:00,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-16 20:32:00,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:32:00,298 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:32:00,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 20:32:00,299 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 20:32:00,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:32:00,299 INFO L85 PathProgramCache]: Analyzing trace with hash 466521712, now seen corresponding path program 1 times [2022-11-16 20:32:00,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:32:00,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858160543] [2022-11-16 20:32:00,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:32:00,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:32:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:32:00,372 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 20:32:00,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:32:00,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858160543] [2022-11-16 20:32:00,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858160543] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:32:00,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:32:00,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:32:00,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143905780] [2022-11-16 20:32:00,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:32:00,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:32:00,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:32:00,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:32:00,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:32:00,375 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-16 20:32:00,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:32:00,404 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2022-11-16 20:32:00,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:32:00,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 36 [2022-11-16 20:32:00,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:32:00,407 INFO L225 Difference]: With dead ends: 39 [2022-11-16 20:32:00,407 INFO L226 Difference]: Without dead ends: 34 [2022-11-16 20:32:00,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:32:00,409 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 4 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:32:00,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 53 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:32:00,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-16 20:32:00,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-16 20:32:00,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 27 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-16 20:32:00,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-11-16 20:32:00,417 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 36 [2022-11-16 20:32:00,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:32:00,417 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-11-16 20:32:00,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-16 20:32:00,418 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-11-16 20:32:00,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-16 20:32:00,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:32:00,420 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:32:00,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 20:32:00,421 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-16 20:32:00,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:32:00,421 INFO L85 PathProgramCache]: Analyzing trace with hash 468306225, now seen corresponding path program 1 times [2022-11-16 20:32:00,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:32:00,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853498529] [2022-11-16 20:32:00,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:32:00,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:32:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:32:00,481 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 20:32:00,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:32:00,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853498529] [2022-11-16 20:32:00,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853498529] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:32:00,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:32:00,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:32:00,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184458137] [2022-11-16 20:32:00,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:32:00,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:32:00,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:32:00,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:32:00,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:32:00,483 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-16 20:32:00,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:32:00,500 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2022-11-16 20:32:00,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:32:00,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 36 [2022-11-16 20:32:00,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:32:00,501 INFO L225 Difference]: With dead ends: 36 [2022-11-16 20:32:00,502 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 20:32:00,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:32:00,503 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:32:00,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 20:32:00,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 20:32:00,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 20:32:00,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 20:32:00,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 20:32:00,504 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2022-11-16 20:32:00,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:32:00,505 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 20:32:00,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-16 20:32:00,505 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 20:32:00,505 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 20:32:00,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-16 20:32:00,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-16 20:32:00,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-16 20:32:00,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-16 20:32:00,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-16 20:32:00,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-16 20:32:00,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-16 20:32:00,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-16 20:32:00,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 20:32:00,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 20:32:00,577 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-16 20:32:00,577 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-16 20:32:00,577 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-16 20:32:00,578 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-16 20:32:00,578 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1598) no Hoare annotation was computed. [2022-11-16 20:32:00,578 INFO L902 garLoopResultBuilder]: At program point L1662(line 1662) the Hoare annotation is: true [2022-11-16 20:32:00,578 INFO L899 garLoopResultBuilder]: For program point L1629(line 1629) no Hoare annotation was computed. [2022-11-16 20:32:00,578 INFO L899 garLoopResultBuilder]: For program point L1596(lines 1596 1605) no Hoare annotation was computed. [2022-11-16 20:32:00,578 INFO L899 garLoopResultBuilder]: For program point L1629-1(line 1629) no Hoare annotation was computed. [2022-11-16 20:32:00,579 INFO L899 garLoopResultBuilder]: For program point L1563(line 1563) no Hoare annotation was computed. [2022-11-16 20:32:00,579 INFO L899 garLoopResultBuilder]: For program point L1654(line 1654) no Hoare annotation was computed. [2022-11-16 20:32:00,579 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1656) no Hoare annotation was computed. [2022-11-16 20:32:00,579 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1569) no Hoare annotation was computed. [2022-11-16 20:32:00,579 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 20:32:00,579 INFO L895 garLoopResultBuilder]: At program point L1564(line 1564) the Hoare annotation is: false [2022-11-16 20:32:00,580 INFO L899 garLoopResultBuilder]: For program point L1589(line 1589) no Hoare annotation was computed. [2022-11-16 20:32:00,580 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1569) no Hoare annotation was computed. [2022-11-16 20:32:00,580 INFO L895 garLoopResultBuilder]: At program point L1631(line 1631) the Hoare annotation is: |ULTIMATE.start_goodG2B1_#t~switch99#1| [2022-11-16 20:32:00,580 INFO L899 garLoopResultBuilder]: For program point L1598(line 1598) no Hoare annotation was computed. [2022-11-16 20:32:00,580 INFO L899 garLoopResultBuilder]: For program point L1598-1(line 1598) no Hoare annotation was computed. [2022-11-16 20:32:00,580 INFO L899 garLoopResultBuilder]: For program point L1656(line 1656) no Hoare annotation was computed. [2022-11-16 20:32:00,580 INFO L899 garLoopResultBuilder]: For program point L1656-1(line 1656) no Hoare annotation was computed. [2022-11-16 20:32:00,581 INFO L895 garLoopResultBuilder]: At program point L1590(line 1590) the Hoare annotation is: false [2022-11-16 20:32:00,581 INFO L899 garLoopResultBuilder]: For program point L1557(line 1557) no Hoare annotation was computed. [2022-11-16 20:32:00,581 INFO L899 garLoopResultBuilder]: For program point L1648(line 1648) no Hoare annotation was computed. [2022-11-16 20:32:00,581 INFO L899 garLoopResultBuilder]: For program point L1607(line 1607) no Hoare annotation was computed. [2022-11-16 20:32:00,581 INFO L899 garLoopResultBuilder]: For program point L1566(line 1566) no Hoare annotation was computed. [2022-11-16 20:32:00,581 INFO L895 garLoopResultBuilder]: At program point L1558(line 1558) the Hoare annotation is: false [2022-11-16 20:32:00,581 INFO L895 garLoopResultBuilder]: At program point L1649(line 1649) the Hoare annotation is: false [2022-11-16 20:32:00,582 INFO L895 garLoopResultBuilder]: At program point L1616(lines 1616 1624) the Hoare annotation is: (let ((.cse0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) (and (<= .cse0 0) (<= 0 .cse0))) [2022-11-16 20:32:00,582 INFO L895 garLoopResultBuilder]: At program point L1608(line 1608) the Hoare annotation is: false [2022-11-16 20:32:00,582 INFO L895 garLoopResultBuilder]: At program point L1575(line 1575) the Hoare annotation is: (and |ULTIMATE.start_goodB2G1_#t~switch93#1| (<= (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648) 0)) [2022-11-16 20:32:00,582 INFO L895 garLoopResultBuilder]: At program point L1600(line 1600) the Hoare annotation is: false [2022-11-16 20:32:00,582 INFO L899 garLoopResultBuilder]: For program point L1567(lines 1567 1576) no Hoare annotation was computed. [2022-11-16 20:32:00,583 INFO L902 garLoopResultBuilder]: At program point L1658(line 1658) the Hoare annotation is: true [2022-11-16 20:32:00,583 INFO L895 garLoopResultBuilder]: At program point L1625(lines 1625 1637) the Hoare annotation is: |ULTIMATE.start_goodG2B1_#t~switch99#1| [2022-11-16 20:32:00,583 INFO L895 garLoopResultBuilder]: At program point L1584(lines 1584 1592) the Hoare annotation is: (and |ULTIMATE.start_goodB2G2_#t~switch95#1| (<= (+ |ULTIMATE.start_goodB2G2_~data~1#1| 2147483648) 0)) [2022-11-16 20:32:00,583 INFO L899 garLoopResultBuilder]: For program point L1634(line 1634) no Hoare annotation was computed. [2022-11-16 20:32:00,583 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1629) no Hoare annotation was computed. [2022-11-16 20:32:00,584 INFO L895 garLoopResultBuilder]: At program point L1593(lines 1593 1610) the Hoare annotation is: |ULTIMATE.start_goodB2G2_#t~switch96#1| [2022-11-16 20:32:00,584 INFO L899 garLoopResultBuilder]: For program point L1618(line 1618) no Hoare annotation was computed. [2022-11-16 20:32:00,584 INFO L895 garLoopResultBuilder]: At program point L1552(lines 1552 1560) the Hoare annotation is: (and |ULTIMATE.start_goodB2G1_#t~switch92#1| (<= (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648) 0)) [2022-11-16 20:32:00,584 INFO L902 garLoopResultBuilder]: At program point L1676(line 1676) the Hoare annotation is: true [2022-11-16 20:32:00,584 INFO L899 garLoopResultBuilder]: For program point L1676-1(line 1676) no Hoare annotation was computed. [2022-11-16 20:32:00,584 INFO L895 garLoopResultBuilder]: At program point L1643(lines 1643 1651) the Hoare annotation is: (let ((.cse0 (+ |ULTIMATE.start_goodG2B2_~data~3#1| 2))) (and (<= 0 .cse0) (<= .cse0 0))) [2022-11-16 20:32:00,585 INFO L895 garLoopResultBuilder]: At program point L1635(line 1635) the Hoare annotation is: false [2022-11-16 20:32:00,585 INFO L899 garLoopResultBuilder]: For program point L1569(line 1569) no Hoare annotation was computed. [2022-11-16 20:32:00,585 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 20:32:00,585 INFO L899 garLoopResultBuilder]: For program point L1569-1(line 1569) no Hoare annotation was computed. [2022-11-16 20:32:00,585 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1629) no Hoare annotation was computed. [2022-11-16 20:32:00,585 INFO L899 garLoopResultBuilder]: For program point L1627(line 1627) no Hoare annotation was computed. [2022-11-16 20:32:00,585 INFO L895 garLoopResultBuilder]: At program point L1561(lines 1561 1578) the Hoare annotation is: |ULTIMATE.start_goodB2G1_#t~switch93#1| [2022-11-16 20:32:00,586 INFO L902 garLoopResultBuilder]: At program point L1652(lines 1652 1664) the Hoare annotation is: true [2022-11-16 20:32:00,586 INFO L895 garLoopResultBuilder]: At program point L1619(line 1619) the Hoare annotation is: false [2022-11-16 20:32:00,586 INFO L899 garLoopResultBuilder]: For program point L1586(line 1586) no Hoare annotation was computed. [2022-11-16 20:32:00,586 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1598) no Hoare annotation was computed. [2022-11-16 20:32:00,586 INFO L899 garLoopResultBuilder]: For program point L1661(line 1661) no Hoare annotation was computed. [2022-11-16 20:32:00,586 INFO L899 garLoopResultBuilder]: For program point L1595(line 1595) no Hoare annotation was computed. [2022-11-16 20:32:00,587 INFO L899 garLoopResultBuilder]: For program point L1554(line 1554) no Hoare annotation was computed. [2022-11-16 20:32:00,587 INFO L902 garLoopResultBuilder]: At program point L1678(line 1678) the Hoare annotation is: true [2022-11-16 20:32:00,587 INFO L899 garLoopResultBuilder]: For program point L1645(line 1645) no Hoare annotation was computed. [2022-11-16 20:32:00,587 INFO L902 garLoopResultBuilder]: At program point L1678-1(line 1678) the Hoare annotation is: true [2022-11-16 20:32:00,587 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1656) no Hoare annotation was computed. [2022-11-16 20:32:00,587 INFO L895 garLoopResultBuilder]: At program point L1604(line 1604) the Hoare annotation is: (and |ULTIMATE.start_goodB2G2_#t~switch96#1| (<= (+ |ULTIMATE.start_goodB2G2_~data~1#1| 2147483648) 0)) [2022-11-16 20:32:00,588 INFO L895 garLoopResultBuilder]: At program point L1571(line 1571) the Hoare annotation is: false [2022-11-16 20:32:00,591 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:32:00,593 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 20:32:00,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 08:32:00 BoogieIcfgContainer [2022-11-16 20:32:00,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 20:32:00,609 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 20:32:00,609 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 20:32:00,609 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 20:32:00,610 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:31:58" (3/4) ... [2022-11-16 20:32:00,613 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 20:32:00,618 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-16 20:32:00,618 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-16 20:32:00,624 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 68 nodes and edges [2022-11-16 20:32:00,624 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2022-11-16 20:32:00,625 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-16 20:32:00,625 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-16 20:32:00,625 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-16 20:32:00,626 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 20:32:00,626 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 20:32:00,669 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b26c04-1a55-4c03-9eed-ecce0c9df5bc/bin/utaipan-Xvt2sAort0/witness.graphml [2022-11-16 20:32:00,670 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 20:32:00,670 INFO L158 Benchmark]: Toolchain (without parser) took 4812.53ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 93.5MB in the beginning and 115.6MB in the end (delta: -22.1MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2022-11-16 20:32:00,671 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 136.3MB. Free memory was 113.8MB in the beginning and 113.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:32:00,671 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1241.44ms. Allocated memory is still 136.3MB. Free memory was 93.4MB in the beginning and 55.5MB in the end (delta: 37.9MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-16 20:32:00,671 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.33ms. Allocated memory is still 136.3MB. Free memory was 55.5MB in the beginning and 51.9MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 20:32:00,672 INFO L158 Benchmark]: Boogie Preprocessor took 69.65ms. Allocated memory is still 136.3MB. Free memory was 51.9MB in the beginning and 109.2MB in the end (delta: -57.3MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2022-11-16 20:32:00,672 INFO L158 Benchmark]: RCFGBuilder took 783.72ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 109.1MB in the beginning and 116.7MB in the end (delta: -7.5MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2022-11-16 20:32:00,673 INFO L158 Benchmark]: TraceAbstraction took 2555.00ms. Allocated memory is still 165.7MB. Free memory was 116.7MB in the beginning and 119.8MB in the end (delta: -3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 20:32:00,673 INFO L158 Benchmark]: Witness Printer took 61.05ms. Allocated memory is still 165.7MB. Free memory was 119.8MB in the beginning and 115.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 20:32:00,675 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 136.3MB. Free memory was 113.8MB in the beginning and 113.6MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1241.44ms. Allocated memory is still 136.3MB. Free memory was 93.4MB in the beginning and 55.5MB in the end (delta: 37.9MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.33ms. Allocated memory is still 136.3MB. Free memory was 55.5MB in the beginning and 51.9MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.65ms. Allocated memory is still 136.3MB. Free memory was 51.9MB in the beginning and 109.2MB in the end (delta: -57.3MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * RCFGBuilder took 783.72ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 109.1MB in the beginning and 116.7MB in the end (delta: -7.5MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2555.00ms. Allocated memory is still 165.7MB. Free memory was 116.7MB in the beginning and 119.8MB in the end (delta: -3.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 61.05ms. Allocated memory is still 165.7MB. Free memory was 119.8MB in the beginning and 115.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1569]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1569]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1598]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1598]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1629]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1656]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1656]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 65 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 14, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 148 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 118 mSDsluCounter, 1265 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 595 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 235 IncrementalHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 670 mSDtfsCounter, 235 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=0, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 87 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 27 LocationsWithAnnotation, 101 PreInvPairs, 121 NumberOfFragments, 71 HoareAnnotationTreeSize, 101 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 27 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 337 NumberOfCodeBlocks, 337 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 409 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 56/56 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: 1616]: Loop Invariant Derived loop invariant: 2 + data <= 0 && 0 <= 2 + data - InvariantResult [Line: 1652]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1678]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1561]: Loop Invariant Derived loop invariant: NULL - InvariantResult [Line: 1552]: Loop Invariant Derived loop invariant: aux-switch(6) { case 6: data = (-0x7fffffff - 1); break; default: printLine("Benign, fixed string"); break; }-aux && data + 2147483648 <= 0 - InvariantResult [Line: 1593]: Loop Invariant Derived loop invariant: NULL - InvariantResult [Line: 1643]: Loop Invariant Derived loop invariant: 0 <= data + 2 && data + 2 <= 0 - InvariantResult [Line: 1584]: Loop Invariant Derived loop invariant: aux-switch(6) { case 6: data = (-0x7fffffff - 1); break; default: printLine("Benign, fixed string"); break; }-aux && data + 2147483648 <= 0 - InvariantResult [Line: 1625]: Loop Invariant Derived loop invariant: NULL RESULT: Ultimate proved your program to be correct! [2022-11-16 20:32:00,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b26c04-1a55-4c03-9eed-ecce0c9df5bc/bin/utaipan-Xvt2sAort0/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