./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS --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 32bit --witnessprinter.graph.data.programhash 2f03a9521f9986f7627623e3bf6c079dbfbe3dc9d9c229ed8d14a2828a7d6850 --- 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-8393723 [2022-11-19 08:15:57,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:15:57,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:15:57,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:15:57,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:15:57,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:15:57,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:15:57,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:15:57,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:15:57,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:15:57,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:15:57,829 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:15:57,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:15:57,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:15:57,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:15:57,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:15:57,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:15:57,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:15:57,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:15:57,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:15:57,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:15:57,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:15:57,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:15:57,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:15:57,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:15:57,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:15:57,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:15:57,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:15:57,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:15:57,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:15:57,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:15:57,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:15:57,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:15:57,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:15:57,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:15:57,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:15:57,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:15:57,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:15:57,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:15:57,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:15:57,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:15:57,862 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 08:15:57,885 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:15:57,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:15:57,886 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:15:57,886 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:15:57,887 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:15:57,887 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:15:57,888 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:15:57,888 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:15:57,888 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:15:57,888 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:15:57,889 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:15:57,889 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:15:57,889 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:15:57,890 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:15:57,890 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:15:57,890 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:15:57,890 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:15:57,891 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:15:57,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:15:57,892 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:15:57,892 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:15:57,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:15:57,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:15:57,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:15:57,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:15:57,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:15:57,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:15:57,893 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 08:15:57,894 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:15:57,894 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:15:57,894 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:15:57,894 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:15:57,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:15:57,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:15:57,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:15:57,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:15:57,895 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:15:57,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:15:57,896 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:15:57,896 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:15:57,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:15:57,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:15:57,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:15:57,897 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_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f03a9521f9986f7627623e3bf6c079dbfbe3dc9d9c229ed8d14a2828a7d6850 [2022-11-19 08:15:58,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:15:58,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:15:58,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:15:58,230 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:15:58,231 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:15:58,232 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2022-11-19 08:15:58,325 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/data/9be215d37/f9adab6f8d1c4b34b72d9b3beef106f0/FLAGcceb8a54f [2022-11-19 08:15:58,745 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:15:58,746 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2022-11-19 08:15:58,752 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/data/9be215d37/f9adab6f8d1c4b34b72d9b3beef106f0/FLAGcceb8a54f [2022-11-19 08:15:59,178 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/data/9be215d37/f9adab6f8d1c4b34b72d9b3beef106f0 [2022-11-19 08:15:59,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:15:59,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:15:59,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:15:59,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:15:59,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:15:59,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:15:59" (1/1) ... [2022-11-19 08:15:59,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57b45eb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:15:59, skipping insertion in model container [2022-11-19 08:15:59,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:15:59" (1/1) ... [2022-11-19 08:15:59,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:15:59,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:15:59,447 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[854,867] [2022-11-19 08:15:59,452 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2022-11-19 08:15:59,459 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1375,1388] [2022-11-19 08:15:59,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:15:59,481 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:15:59,509 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[854,867] [2022-11-19 08:15:59,511 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2022-11-19 08:15:59,513 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1375,1388] [2022-11-19 08:15:59,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:15:59,529 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:15:59,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:15:59 WrapperNode [2022-11-19 08:15:59,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:15:59,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:15:59,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:15:59,531 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:15:59,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:15:59" (1/1) ... [2022-11-19 08:15:59,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:15:59" (1/1) ... [2022-11-19 08:15:59,562 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 83 [2022-11-19 08:15:59,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:15:59,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:15:59,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:15:59,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:15:59,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:15:59" (1/1) ... [2022-11-19 08:15:59,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:15:59" (1/1) ... [2022-11-19 08:15:59,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:15:59" (1/1) ... [2022-11-19 08:15:59,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:15:59" (1/1) ... [2022-11-19 08:15:59,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:15:59" (1/1) ... [2022-11-19 08:15:59,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:15:59" (1/1) ... [2022-11-19 08:15:59,580 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:15:59" (1/1) ... [2022-11-19 08:15:59,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:15:59" (1/1) ... [2022-11-19 08:15:59,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:15:59,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:15:59,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:15:59,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:15:59,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:15:59" (1/1) ... [2022-11-19 08:15:59,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:15:59,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:15:59,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:15:59,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:15:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:15:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:15:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:15:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:15:59,723 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:15:59,726 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:15:59,888 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:15:59,904 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:15:59,905 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 08:15:59,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:15:59 BoogieIcfgContainer [2022-11-19 08:15:59,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:15:59,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:15:59,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:15:59,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:15:59,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:15:59" (1/3) ... [2022-11-19 08:15:59,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7971157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:15:59, skipping insertion in model container [2022-11-19 08:15:59,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:15:59" (2/3) ... [2022-11-19 08:15:59,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7971157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:15:59, skipping insertion in model container [2022-11-19 08:15:59,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:15:59" (3/3) ... [2022-11-19 08:15:59,920 INFO L112 eAbstractionObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2022-11-19 08:15:59,941 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:15:59,941 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-19 08:16:00,000 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:16:00,008 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;@5192b234, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:16:00,008 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-19 08:16:00,013 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 46 states have internal predecessors, (53), 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) [2022-11-19 08:16:00,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 08:16:00,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:00,020 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 08:16:00,021 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-19 08:16:00,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:00,026 INFO L85 PathProgramCache]: Analyzing trace with hash 3344631, now seen corresponding path program 1 times [2022-11-19 08:16:00,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:16:00,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181419302] [2022-11-19 08:16:00,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:00,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:16:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:00,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:16:00,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:16:00,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181419302] [2022-11-19 08:16:00,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181419302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:16:00,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:16:00,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:16:00,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508587565] [2022-11-19 08:16:00,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:16:00,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:16:00,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:16:00,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:16:00,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:16:00,268 INFO L87 Difference]: Start difference. First operand has 47 states, 28 states have (on average 1.8928571428571428) internal successors, (53), 46 states have internal predecessors, (53), 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-19 08:16:00,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:00,335 INFO L93 Difference]: Finished difference Result 111 states and 128 transitions. [2022-11-19 08:16:00,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:16:00,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 4 [2022-11-19 08:16:00,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:00,348 INFO L225 Difference]: With dead ends: 111 [2022-11-19 08:16:00,349 INFO L226 Difference]: Without dead ends: 63 [2022-11-19 08:16:00,352 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 [2022-11-19 08:16:00,356 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 31 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:00,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 74 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:16:00,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-19 08:16:00,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 55. [2022-11-19 08:16:00,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 39 states have (on average 1.641025641025641) internal successors, (64), 54 states have internal predecessors, (64), 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) [2022-11-19 08:16:00,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 64 transitions. [2022-11-19 08:16:00,395 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 64 transitions. Word has length 4 [2022-11-19 08:16:00,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:00,395 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 64 transitions. [2022-11-19 08:16:00,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-19 08:16:00,396 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2022-11-19 08:16:00,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 08:16:00,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:00,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 08:16:00,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:16:00,397 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-19 08:16:00,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:00,398 INFO L85 PathProgramCache]: Analyzing trace with hash 3342647, now seen corresponding path program 1 times [2022-11-19 08:16:00,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:16:00,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113806290] [2022-11-19 08:16:00,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:00,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:16:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:00,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:16:00,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:16:00,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113806290] [2022-11-19 08:16:00,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113806290] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:16:00,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:16:00,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:16:00,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903235321] [2022-11-19 08:16:00,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:16:00,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:16:00,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:16:00,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:16:00,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:16:00,463 INFO L87 Difference]: Start difference. First operand 55 states and 64 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-19 08:16:00,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:00,575 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2022-11-19 08:16:00,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:16:00,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2022-11-19 08:16:00,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:00,577 INFO L225 Difference]: With dead ends: 55 [2022-11-19 08:16:00,578 INFO L226 Difference]: Without dead ends: 52 [2022-11-19 08:16:00,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:16:00,580 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 36 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:00,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 15 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:16:00,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-19 08:16:00,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-19 08:16:00,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 39 states have (on average 1.5128205128205128) internal successors, (59), 51 states have internal predecessors, (59), 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) [2022-11-19 08:16:00,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2022-11-19 08:16:00,621 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 4 [2022-11-19 08:16:00,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:00,621 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2022-11-19 08:16:00,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-19 08:16:00,622 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2022-11-19 08:16:00,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 08:16:00,622 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:00,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 08:16:00,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:16:00,623 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-19 08:16:00,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:00,624 INFO L85 PathProgramCache]: Analyzing trace with hash 103622100, now seen corresponding path program 1 times [2022-11-19 08:16:00,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:16:00,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506333004] [2022-11-19 08:16:00,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:00,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:16:00,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:00,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:16:00,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:16:00,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506333004] [2022-11-19 08:16:00,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506333004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:16:00,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:16:00,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:16:00,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175331285] [2022-11-19 08:16:00,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:16:00,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:16:00,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:16:00,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:16:00,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:16:00,697 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-19 08:16:00,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:00,790 INFO L93 Difference]: Finished difference Result 84 states and 97 transitions. [2022-11-19 08:16:00,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:16:00,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2022-11-19 08:16:00,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:00,792 INFO L225 Difference]: With dead ends: 84 [2022-11-19 08:16:00,792 INFO L226 Difference]: Without dead ends: 76 [2022-11-19 08:16:00,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:16:00,794 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 80 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:00,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 22 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:16:00,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-19 08:16:00,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 72. [2022-11-19 08:16:00,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 71 states have internal predecessors, (83), 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) [2022-11-19 08:16:00,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2022-11-19 08:16:00,807 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 5 [2022-11-19 08:16:00,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:00,807 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2022-11-19 08:16:00,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-19 08:16:00,808 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2022-11-19 08:16:00,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 08:16:00,808 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:00,809 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 08:16:00,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:16:00,809 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-19 08:16:00,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:00,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1082682151, now seen corresponding path program 1 times [2022-11-19 08:16:00,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:16:00,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934551660] [2022-11-19 08:16:00,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:00,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:16:00,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:00,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:16:00,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:16:00,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934551660] [2022-11-19 08:16:00,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934551660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:16:00,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:16:00,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:16:00,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763598051] [2022-11-19 08:16:00,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:16:00,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:16:00,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:16:00,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:16:00,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:16:00,880 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-19 08:16:00,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:00,951 INFO L93 Difference]: Finished difference Result 76 states and 83 transitions. [2022-11-19 08:16:00,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:16:00,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) Word has length 6 [2022-11-19 08:16:00,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:00,953 INFO L225 Difference]: With dead ends: 76 [2022-11-19 08:16:00,953 INFO L226 Difference]: Without dead ends: 73 [2022-11-19 08:16:00,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:16:00,955 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 21 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:00,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 27 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:16:00,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-19 08:16:00,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2022-11-19 08:16:00,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 63 states have (on average 1.253968253968254) internal successors, (79), 70 states have internal predecessors, (79), 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) [2022-11-19 08:16:00,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 79 transitions. [2022-11-19 08:16:00,967 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 79 transitions. Word has length 6 [2022-11-19 08:16:00,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:00,968 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 79 transitions. [2022-11-19 08:16:00,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-19 08:16:00,968 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 79 transitions. [2022-11-19 08:16:00,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:16:00,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:00,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:16:00,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:16:00,970 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-19 08:16:00,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:00,971 INFO L85 PathProgramCache]: Analyzing trace with hash 135933682, now seen corresponding path program 1 times [2022-11-19 08:16:00,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:16:00,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175908239] [2022-11-19 08:16:00,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:00,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:16:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:01,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:16:01,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:16:01,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175908239] [2022-11-19 08:16:01,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175908239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:16:01,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:16:01,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:16:01,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565658800] [2022-11-19 08:16:01,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:16:01,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:16:01,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:16:01,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:16:01,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:16:01,077 INFO L87 Difference]: Start difference. First operand 71 states and 79 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2022-11-19 08:16:01,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:01,114 INFO L93 Difference]: Finished difference Result 148 states and 163 transitions. [2022-11-19 08:16:01,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:16:01,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) Word has length 24 [2022-11-19 08:16:01,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:01,118 INFO L225 Difference]: With dead ends: 148 [2022-11-19 08:16:01,118 INFO L226 Difference]: Without dead ends: 107 [2022-11-19 08:16:01,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:16:01,120 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 45 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:01,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 67 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:16:01,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-19 08:16:01,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 97. [2022-11-19 08:16:01,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 89 states have (on average 1.2247191011235956) internal successors, (109), 96 states have internal predecessors, (109), 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) [2022-11-19 08:16:01,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 109 transitions. [2022-11-19 08:16:01,136 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 109 transitions. Word has length 24 [2022-11-19 08:16:01,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:01,137 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 109 transitions. [2022-11-19 08:16:01,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2022-11-19 08:16:01,137 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 109 transitions. [2022-11-19 08:16:01,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 08:16:01,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:01,138 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:16:01,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:16:01,139 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-19 08:16:01,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:01,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1918202051, now seen corresponding path program 1 times [2022-11-19 08:16:01,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:16:01,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822085485] [2022-11-19 08:16:01,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:01,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:16:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:01,391 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:16:01,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:16:01,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822085485] [2022-11-19 08:16:01,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822085485] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:16:01,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513277821] [2022-11-19 08:16:01,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:01,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:16:01,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:16:01,396 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:16:01,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:16:01,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:01,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:16:01,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:16:01,627 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:16:01,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:16:01,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513277821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:16:01,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:16:01,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-19 08:16:01,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060189787] [2022-11-19 08:16:01,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:16:01,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:16:01,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:16:01,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:16:01,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:16:01,630 INFO L87 Difference]: Start difference. First operand 97 states and 109 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2022-11-19 08:16:01,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:01,694 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2022-11-19 08:16:01,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:16:01,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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) Word has length 30 [2022-11-19 08:16:01,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:01,696 INFO L225 Difference]: With dead ends: 101 [2022-11-19 08:16:01,696 INFO L226 Difference]: Without dead ends: 100 [2022-11-19 08:16:01,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:16:01,698 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 26 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:01,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 56 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:16:01,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-19 08:16:01,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96. [2022-11-19 08:16:01,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 89 states have (on average 1.202247191011236) internal successors, (107), 95 states have internal predecessors, (107), 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) [2022-11-19 08:16:01,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 107 transitions. [2022-11-19 08:16:01,736 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 107 transitions. Word has length 30 [2022-11-19 08:16:01,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:01,736 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 107 transitions. [2022-11-19 08:16:01,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2022-11-19 08:16:01,737 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 107 transitions. [2022-11-19 08:16:01,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-19 08:16:01,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:01,738 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:16:01,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:16:01,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:16:01,939 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-19 08:16:01,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:01,940 INFO L85 PathProgramCache]: Analyzing trace with hash -4011770, now seen corresponding path program 1 times [2022-11-19 08:16:01,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:16:01,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386287676] [2022-11-19 08:16:01,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:01,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:16:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:02,067 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:16:02,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:16:02,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386287676] [2022-11-19 08:16:02,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386287676] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:16:02,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105662208] [2022-11-19 08:16:02,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:02,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:16:02,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:16:02,071 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:16:02,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:16:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:02,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:16:02,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:16:02,280 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:16:02,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:16:02,413 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:16:02,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105662208] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:16:02,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1376897398] [2022-11-19 08:16:02,449 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-19 08:16:02,449 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:16:02,454 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:16:02,461 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:16:02,462 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:16:05,575 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:16:07,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1376897398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:16:07,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:16:07,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [5, 5, 5] total 23 [2022-11-19 08:16:07,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756718834] [2022-11-19 08:16:07,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:16:07,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-19 08:16:07,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:16:07,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-19 08:16:07,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=396, Unknown=0, NotChecked=0, Total=506 [2022-11-19 08:16:07,061 INFO L87 Difference]: Start difference. First operand 96 states and 107 transitions. Second operand has 16 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 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) [2022-11-19 08:16:09,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:09,416 INFO L93 Difference]: Finished difference Result 97 states and 108 transitions. [2022-11-19 08:16:09,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-19 08:16:09,416 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 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) Word has length 38 [2022-11-19 08:16:09,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:09,417 INFO L225 Difference]: With dead ends: 97 [2022-11-19 08:16:09,417 INFO L226 Difference]: Without dead ends: 91 [2022-11-19 08:16:09,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 93 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=271, Invalid=1061, Unknown=0, NotChecked=0, Total=1332 [2022-11-19 08:16:09,419 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 97 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:09,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 5 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:16:09,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-19 08:16:09,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 65. [2022-11-19 08:16:09,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.046875) internal successors, (67), 64 states have internal predecessors, (67), 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) [2022-11-19 08:16:09,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 67 transitions. [2022-11-19 08:16:09,436 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 67 transitions. Word has length 38 [2022-11-19 08:16:09,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:09,436 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 67 transitions. [2022-11-19 08:16:09,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 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) [2022-11-19 08:16:09,437 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 67 transitions. [2022-11-19 08:16:09,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-19 08:16:09,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:09,438 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:16:09,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:16:09,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:16:09,652 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-19 08:16:09,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:09,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1506830764, now seen corresponding path program 1 times [2022-11-19 08:16:09,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:16:09,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498077144] [2022-11-19 08:16:09,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:09,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:16:09,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:09,753 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-19 08:16:09,753 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:16:09,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498077144] [2022-11-19 08:16:09,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498077144] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:16:09,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733819061] [2022-11-19 08:16:09,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:09,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:16:09,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:16:09,756 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:16:09,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:16:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:09,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 08:16:09,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:16:09,913 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-19 08:16:09,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:16:10,000 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 48 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-19 08:16:10,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733819061] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:16:10,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1538735302] [2022-11-19 08:16:10,005 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-19 08:16:10,005 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:16:10,006 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:16:10,006 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:16:10,006 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:16:12,208 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:16:13,555 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2133#(and (<= |ULTIMATE.start_main_~main__i~0#1| 2147483647) (<= 8 |ULTIMATE.start_main_~main__j~0#1|) (<= |ULTIMATE.start_main_~main__nlen~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| 1) (<= 0 |ULTIMATE.start_main_~main__nlen~0#1|) (= ~__return_100~0 0) (< 2147483646 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~__tmp_1~0#1| 1) (<= 0 |ULTIMATE.start_main_~__tmp_1~0#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~main__j~0#1| 2147483647) (<= |ULTIMATE.start_main_~__tmp_2~0#1| 1) (<= 0 |#StackHeapBarrier|) (= ~__return_main~0 0) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~__tmp_2~0#1|))' at error location [2022-11-19 08:16:13,555 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:16:13,555 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:16:13,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 5, 5] total 10 [2022-11-19 08:16:13,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277186150] [2022-11-19 08:16:13,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:16:13,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:16:13,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:16:13,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:16:13,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2022-11-19 08:16:13,557 INFO L87 Difference]: Start difference. First operand 65 states and 67 transitions. Second operand has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 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) [2022-11-19 08:16:13,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:13,875 INFO L93 Difference]: Finished difference Result 300 states and 317 transitions. [2022-11-19 08:16:13,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-19 08:16:13,876 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 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) Word has length 64 [2022-11-19 08:16:13,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:13,878 INFO L225 Difference]: With dead ends: 300 [2022-11-19 08:16:13,878 INFO L226 Difference]: Without dead ends: 266 [2022-11-19 08:16:13,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 167 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=276, Invalid=1056, Unknown=0, NotChecked=0, Total=1332 [2022-11-19 08:16:13,883 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 378 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:13,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 68 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:16:13,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-11-19 08:16:13,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 265. [2022-11-19 08:16:13,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 264 states have (on average 1.0151515151515151) internal successors, (268), 264 states have internal predecessors, (268), 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) [2022-11-19 08:16:13,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 268 transitions. [2022-11-19 08:16:13,932 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 268 transitions. Word has length 64 [2022-11-19 08:16:13,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:13,934 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 268 transitions. [2022-11-19 08:16:13,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.2) internal successors, (122), 10 states have internal predecessors, (122), 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) [2022-11-19 08:16:13,934 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 268 transitions. [2022-11-19 08:16:13,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-19 08:16:13,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:16:13,951 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:16:13,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:16:14,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:16:14,157 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-19 08:16:14,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:16:14,158 INFO L85 PathProgramCache]: Analyzing trace with hash 2068054537, now seen corresponding path program 2 times [2022-11-19 08:16:14,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:16:14,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194451858] [2022-11-19 08:16:14,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:16:14,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:16:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:16:14,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2099 backedges. 0 proven. 999 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2022-11-19 08:16:14,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:16:14,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194451858] [2022-11-19 08:16:14,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194451858] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:16:14,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149296847] [2022-11-19 08:16:14,584 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-19 08:16:14,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:16:14,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:16:14,595 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:16:14,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:16:14,662 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-19 08:16:14,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:16:14,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:16:14,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:16:15,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2099 backedges. 0 proven. 173 refuted. 0 times theorem prover too weak. 1926 trivial. 0 not checked. [2022-11-19 08:16:15,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:16:15,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2099 backedges. 0 proven. 173 refuted. 0 times theorem prover too weak. 1926 trivial. 0 not checked. [2022-11-19 08:16:15,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149296847] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:16:15,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1160897389] [2022-11-19 08:16:15,529 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-19 08:16:15,529 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:16:15,530 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:16:15,530 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:16:15,530 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:16:17,549 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:16:18,923 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4404#(and (<= |ULTIMATE.start_main_~main__i~0#1| 2147483647) (<= 8 |ULTIMATE.start_main_~main__j~0#1|) (<= |ULTIMATE.start_main_~main__nlen~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1| 1) (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1|) (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| 1) (<= 0 |ULTIMATE.start_main_~main__nlen~0#1|) (= ~__return_100~0 0) (< 2147483646 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~__tmp_1~0#1| 1) (<= 0 |ULTIMATE.start_main_~__tmp_1~0#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~main__j~0#1| 2147483647) (<= |ULTIMATE.start_main_~__tmp_2~0#1| 1) (<= 0 |#StackHeapBarrier|) (= ~__return_main~0 0) (= |#NULL.base| 0) (<= 0 |ULTIMATE.start_main_~__tmp_2~0#1|))' at error location [2022-11-19 08:16:18,923 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:16:18,923 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:16:18,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 3, 3] total 4 [2022-11-19 08:16:18,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439323662] [2022-11-19 08:16:18,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:16:18,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:16:18,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:16:18,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:16:18,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2022-11-19 08:16:18,927 INFO L87 Difference]: Start difference. First operand 265 states and 268 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2022-11-19 08:16:19,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:16:19,033 INFO L93 Difference]: Finished difference Result 265 states and 268 transitions. [2022-11-19 08:16:19,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:16:19,038 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) Word has length 264 [2022-11-19 08:16:19,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:16:19,039 INFO L225 Difference]: With dead ends: 265 [2022-11-19 08:16:19,040 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:16:19,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 794 GetRequests, 770 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2022-11-19 08:16:19,041 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 45 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:16:19,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 20 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:16:19,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:16:19,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:16:19,043 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) [2022-11-19 08:16:19,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:16:19,043 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 264 [2022-11-19 08:16:19,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:16:19,043 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:16:19,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2022-11-19 08:16:19,043 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:16:19,044 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:16:19,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-11-19 08:16:19,051 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-11-19 08:16:19,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-11-19 08:16:19,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-11-19 08:16:19,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-11-19 08:16:19,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-11-19 08:16:19,052 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-11-19 08:16:19,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-11-19 08:16:19,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-11-19 08:16:19,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-11-19 08:16:19,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-11-19 08:16:19,053 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-11-19 08:16:19,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-11-19 08:16:19,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-11-19 08:16:19,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-11-19 08:16:19,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-11-19 08:16:19,054 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-11-19 08:16:19,055 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-11-19 08:16:19,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-19 08:16:19,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-19 08:16:19,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 08:16:20,650 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-11-19 08:16:20,650 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 75) no Hoare annotation was computed. [2022-11-19 08:16:20,650 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2022-11-19 08:16:20,651 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-11-19 08:16:20,655 INFO L895 garLoopResultBuilder]: At program point L69(lines 39 89) the Hoare annotation is: (let ((.cse20 (ite (<= (+ |ULTIMATE.start_main_~main__i~0#1| 1) |ULTIMATE.start_main_~main__nlen~0#1|) 1 0))) (let ((.cse0 (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~2#1| |ULTIMATE.start_main_~__tmp_3~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~main__i~0#1| 2147483646)) (.cse3 (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1|)) (.cse4 (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1| 1)) (.cse5 (= .cse20 |ULTIMATE.start_main_~__tmp_3~0#1|)) (.cse6 (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1|)) (.cse7 (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| 1)) (.cse9 (<= 1 |ULTIMATE.start_main_~main__nlen~0#1|)) (.cse10 (<= |ULTIMATE.start_main_~__tmp_1~0#1| 1)) (.cse12 (<= 0 |ULTIMATE.start_main_~__tmp_1~0#1|)) (.cse14 (<= |ULTIMATE.start_main_~__tmp_2~0#1| 1)) (.cse15 (<= 0 |#StackHeapBarrier|)) (.cse17 (<= 0 |ULTIMATE.start_main_~main__i~0#1|)) (.cse19 (<= 0 |ULTIMATE.start_main_~__tmp_2~0#1|)) (.cse2 (<= |ULTIMATE.start_main_~main__nlen~0#1| 2147483647)) (.cse8 (= ~__return_100~0 0)) (.cse11 (= |ULTIMATE.start_main_~main__j~0#1| 0)) (.cse13 (= |#NULL.offset| 0)) (.cse16 (= ~__return_main~0 0)) (.cse18 (= |#NULL.base| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19) (and (<= 1 |ULTIMATE.start_main_~main__j~0#1|) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse12 .cse13 (< |ULTIMATE.start_main_~main__j~0#1| 8) .cse14 .cse15 .cse16 .cse17 .cse18 .cse19) (let ((.cse21 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| |ULTIMATE.start_main_~__tmp_1~0#1|) (= (select |#length| 3) 12) .cse2 (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) .cse8 (= .cse20 |ULTIMATE.start_main_~__tmp_1~0#1|) (= |ULTIMATE.start_main_~main__i~0#1| 0) .cse11 (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) .cse13 (= (select .cse21 0) 48) (= 27 (select |#length| 2)) (= (select .cse21 1) 0) .cse16 (< 0 |#StackHeapBarrier|) .cse18 (< |ULTIMATE.start_main_~main__i~0#1| |ULTIMATE.start_main_~main__nlen~0#1|)))))) [2022-11-19 08:16:20,655 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-11-19 08:16:20,655 INFO L899 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2022-11-19 08:16:20,655 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 08:16:20,655 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-11-19 08:16:20,656 INFO L899 garLoopResultBuilder]: For program point L94-1(line 94) no Hoare annotation was computed. [2022-11-19 08:16:20,656 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 94) no Hoare annotation was computed. [2022-11-19 08:16:20,656 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-11-19 08:16:20,656 INFO L899 garLoopResultBuilder]: For program point L53-1(line 53) no Hoare annotation was computed. [2022-11-19 08:16:20,656 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2022-11-19 08:16:20,656 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2022-11-19 08:16:20,656 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-11-19 08:16:20,657 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 89) no Hoare annotation was computed. [2022-11-19 08:16:20,657 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 08:16:20,657 INFO L895 garLoopResultBuilder]: At program point L95(lines 14 102) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (<= |ULTIMATE.start_main_~main__nlen~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~main__nlen~0#1| 2147483648)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= ~__return_100~0 0) (= |ULTIMATE.start_main_~main__i~0#1| 0) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= 27 (select |#length| 2)) (= (select .cse0 1) 0) (= ~__return_main~0 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2022-11-19 08:16:20,657 INFO L899 garLoopResultBuilder]: For program point L62(lines 62 70) no Hoare annotation was computed. [2022-11-19 08:16:20,658 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-11-19 08:16:20,658 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 94) no Hoare annotation was computed. [2022-11-19 08:16:20,658 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2022-11-19 08:16:20,659 INFO L895 garLoopResultBuilder]: At program point L79(lines 52 87) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~main__j~0#1|)) (.cse12 (<= |ULTIMATE.start_main_~main__i~0#1| 2147483646)) (.cse1 (<= |ULTIMATE.start_main_~main__nlen~0#1| 2147483647)) (.cse2 (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1|)) (.cse13 (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1| 1)) (.cse14 (<= 0 |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1|)) (.cse3 (<= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| 1)) (.cse4 (= ~__return_100~0 0)) (.cse5 (<= 1 |ULTIMATE.start_main_~main__nlen~0#1|)) (.cse6 (<= |ULTIMATE.start_main_~__tmp_1~0#1| 1)) (.cse7 (<= 0 |ULTIMATE.start_main_~__tmp_1~0#1|)) (.cse8 (= |#NULL.offset| 0)) (.cse15 (<= |ULTIMATE.start_main_~__tmp_2~0#1| 1)) (.cse16 (<= 0 |#StackHeapBarrier|)) (.cse10 (= ~__return_main~0 0)) (.cse17 (<= 0 |ULTIMATE.start_main_~main__i~0#1|)) (.cse11 (= |#NULL.base| 0)) (.cse18 (<= 0 |ULTIMATE.start_main_~__tmp_2~0#1|))) (or (let ((.cse9 (select |#memory_int| 1))) (and .cse0 (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1| |ULTIMATE.start_main_~__tmp_2~0#1|) .cse1 .cse2 (= (ite (< 0 (+ |ULTIMATE.start_main_~main__i~0#1| 1)) 1 0) |ULTIMATE.start_main_~__tmp_2~0#1|) .cse3 (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) .cse4 .cse5 .cse6 (= |ULTIMATE.start_main_~main__i~0#1| 0) .cse7 (= (select |#valid| 1) 1) (<= |ULTIMATE.start_main_~main__j~0#1| 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) .cse8 (= (select .cse9 0) 48) (= 27 (select |#length| 2)) (= (select .cse9 1) 0) .cse10 (< 0 |#StackHeapBarrier|) .cse11)) (and .cse0 (<= |ULTIMATE.start_main_~main__j~0#1| 2147483646) .cse12 .cse1 .cse2 .cse13 .cse14 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse15 .cse16 (or (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~2#1| 0) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~2#1| 1)) .cse10 .cse17 .cse11 .cse18) (and .cse12 .cse1 .cse2 .cse13 .cse14 .cse3 .cse4 .cse5 .cse6 (= |ULTIMATE.start_main_~main__j~0#1| 0) .cse7 .cse8 .cse15 .cse16 .cse10 .cse17 .cse11 .cse18))) [2022-11-19 08:16:20,659 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 87) no Hoare annotation was computed. [2022-11-19 08:16:20,659 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2022-11-19 08:16:20,659 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2022-11-19 08:16:20,659 INFO L899 garLoopResultBuilder]: For program point L75-1(line 75) no Hoare annotation was computed. [2022-11-19 08:16:20,660 INFO L902 garLoopResultBuilder]: At program point L100(lines 13 102) the Hoare annotation is: true [2022-11-19 08:16:20,660 INFO L899 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2022-11-19 08:16:20,660 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-11-19 08:16:20,660 INFO L899 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2022-11-19 08:16:20,660 INFO L899 garLoopResultBuilder]: For program point L30-2(line 30) no Hoare annotation was computed. [2022-11-19 08:16:20,660 INFO L899 garLoopResultBuilder]: For program point L30-3(line 30) no Hoare annotation was computed. [2022-11-19 08:16:20,660 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2022-11-19 08:16:20,660 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 96) no Hoare annotation was computed. [2022-11-19 08:16:20,660 INFO L899 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed. [2022-11-19 08:16:20,660 INFO L899 garLoopResultBuilder]: For program point L59-2(line 59) no Hoare annotation was computed. [2022-11-19 08:16:20,661 INFO L899 garLoopResultBuilder]: For program point L59-3(line 59) no Hoare annotation was computed. [2022-11-19 08:16:20,661 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 75) no Hoare annotation was computed. [2022-11-19 08:16:20,661 INFO L899 garLoopResultBuilder]: For program point L76(lines 76 85) no Hoare annotation was computed. [2022-11-19 08:16:20,661 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2022-11-19 08:16:20,661 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 59) no Hoare annotation was computed. [2022-11-19 08:16:20,661 INFO L899 garLoopResultBuilder]: For program point L43-1(line 43) no Hoare annotation was computed. [2022-11-19 08:16:20,662 INFO L899 garLoopResultBuilder]: For program point L43-2(line 43) no Hoare annotation was computed. [2022-11-19 08:16:20,662 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 43) no Hoare annotation was computed. [2022-11-19 08:16:20,662 INFO L899 garLoopResultBuilder]: For program point L43-3(line 43) no Hoare annotation was computed. [2022-11-19 08:16:20,665 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:16:20,667 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:16:20,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:16:20 BoogieIcfgContainer [2022-11-19 08:16:20,719 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:16:20,720 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:16:20,720 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:16:20,720 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:16:20,721 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:15:59" (3/4) ... [2022-11-19 08:16:20,731 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:16:20,745 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-19 08:16:20,745 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-19 08:16:20,746 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 08:16:20,747 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:16:20,809 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:16:20,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:16:20,810 INFO L158 Benchmark]: Toolchain (without parser) took 21624.96ms. Allocated memory was 130.0MB in the beginning and 381.7MB in the end (delta: 251.7MB). Free memory was 95.7MB in the beginning and 305.5MB in the end (delta: -209.8MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. [2022-11-19 08:16:20,811 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:16:20,811 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.45ms. Allocated memory is still 130.0MB. Free memory was 95.4MB in the beginning and 104.3MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 08:16:20,811 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.57ms. Allocated memory is still 130.0MB. Free memory was 104.3MB in the beginning and 102.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:16:20,812 INFO L158 Benchmark]: Boogie Preprocessor took 19.24ms. Allocated memory is still 130.0MB. Free memory was 102.9MB in the beginning and 101.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:16:20,815 INFO L158 Benchmark]: RCFGBuilder took 324.31ms. Allocated memory is still 130.0MB. Free memory was 101.7MB in the beginning and 89.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 08:16:20,816 INFO L158 Benchmark]: TraceAbstraction took 20809.17ms. Allocated memory was 130.0MB in the beginning and 381.7MB in the end (delta: 251.7MB). Free memory was 88.7MB in the beginning and 308.6MB in the end (delta: -219.9MB). Peak memory consumption was 213.5MB. Max. memory is 16.1GB. [2022-11-19 08:16:20,816 INFO L158 Benchmark]: Witness Printer took 89.63ms. Allocated memory is still 381.7MB. Free memory was 308.6MB in the beginning and 305.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 08:16:20,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.45ms. Allocated memory is still 130.0MB. Free memory was 95.4MB in the beginning and 104.3MB in the end (delta: -9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.57ms. Allocated memory is still 130.0MB. Free memory was 104.3MB in the beginning and 102.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.24ms. Allocated memory is still 130.0MB. Free memory was 102.9MB in the beginning and 101.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 324.31ms. Allocated memory is still 130.0MB. Free memory was 101.7MB in the beginning and 89.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 20809.17ms. Allocated memory was 130.0MB in the beginning and 381.7MB in the end (delta: 251.7MB). Free memory was 88.7MB in the beginning and 308.6MB in the end (delta: -219.9MB). Peak memory consumption was 213.5MB. Max. memory is 16.1GB. * Witness Printer took 89.63ms. Allocated memory is still 381.7MB. Free memory was 308.6MB in the beginning and 305.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 43]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 94]: 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 1 procedures, 47 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 20.7s, OverallIterations: 9, TraceHistogramMax: 18, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 759 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 759 mSDsluCounter, 354 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 160 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 507 IncrementalHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 194 mSDtfsCounter, 507 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1173 GetRequests, 1063 SyntacticMatches, 8 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1013 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=265occurred in iteration=8, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 55 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 44 NumberOfFragments, 533 HoareAnnotationTreeSize, 4 FomulaSimplifications, 558 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 4 FomulaSimplificationsInter, 4204 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 835 NumberOfCodeBlocks, 603 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1185 ConstructedInterpolants, 0 QuantifiedInterpolants, 3379 SizeOfPredicates, 4 NumberOfNonLiveVariables, 406 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 16 InterpolantComputations, 6 PerfectInterpolantSequences, 5131/6578 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: OVERALL_TIME: 3.1s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 34, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 270, TOOLS_POST_TIME: 2.6s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 270, TOOLS_QUANTIFIERELIM_TIME: 2.4s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 333, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 18, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 9, DOMAIN_WIDEN_TIME: 0.2s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 15, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 34, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 6, LOOP_SUMMARIZER_CACHE_MISSES: 6, LOOP_SUMMARIZER_OVERALL_TIME: 2.6s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 2.6s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 15, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.1s, DAG_COMPRESSION_PROCESSED_NODES: 1548, DAG_COMPRESSION_RETAINED_NODES: 116, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((1 <= main__j && unknown-#length-unknown[3] == 12) && __VERIFIER_assert__cond == __tmp_2) && main__nlen <= 2147483647) && 0 <= __VERIFIER_assert__cond) && (if 0 < main__i + 1 then 1 else 0) == __tmp_2) && __VERIFIER_assert__cond <= 1) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && __return_100 == 0) && 1 <= main__nlen) && __tmp_1 <= 1) && main__i == 0) && 0 <= __tmp_1) && \valid[1] == 1) && main__j <= 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 27 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && __return_main == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || (((((((((((((((((((1 <= main__j && main__j <= 2147483646) && main__i <= 2147483646) && main__nlen <= 2147483647) && 0 <= __VERIFIER_assert__cond) && __VERIFIER_assert__cond <= 1) && 0 <= __VERIFIER_assert__cond) && __VERIFIER_assert__cond <= 1) && __return_100 == 0) && 1 <= main__nlen) && __tmp_1 <= 1) && 0 <= __tmp_1) && #NULL == 0) && __tmp_2 <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && (__VERIFIER_assert__cond == 0 || __VERIFIER_assert__cond == 1)) && __return_main == 0) && 0 <= main__i) && #NULL == 0) && 0 <= __tmp_2)) || (((((((((((((((((main__i <= 2147483646 && main__nlen <= 2147483647) && 0 <= __VERIFIER_assert__cond) && __VERIFIER_assert__cond <= 1) && 0 <= __VERIFIER_assert__cond) && __VERIFIER_assert__cond <= 1) && __return_100 == 0) && 1 <= main__nlen) && __tmp_1 <= 1) && main__j == 0) && 0 <= __tmp_1) && #NULL == 0) && __tmp_2 <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && __return_main == 0) && 0 <= main__i) && #NULL == 0) && 0 <= __tmp_2) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((((((((((((((unknown-#length-unknown[3] == 12 && main__nlen <= 2147483647) && 0 <= main__nlen + 2147483648) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && __return_100 == 0) && main__i == 0) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 27 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && __return_main == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: ((((((((((((((((((((__VERIFIER_assert__cond == __tmp_3 && main__i <= 2147483646) && main__nlen <= 2147483647) && 0 <= __VERIFIER_assert__cond) && __VERIFIER_assert__cond <= 1) && (if main__i + 1 <= main__nlen then 1 else 0) == __tmp_3) && 0 <= __VERIFIER_assert__cond) && __VERIFIER_assert__cond <= 1) && __return_100 == 0) && 1 <= main__nlen) && __tmp_1 <= 1) && main__j == 0) && 0 <= __tmp_1) && #NULL == 0) && __tmp_2 <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && __return_main == 0) && 0 <= main__i) && #NULL == 0) && 0 <= __tmp_2) || ((((((((((((((((((((1 <= main__j && __VERIFIER_assert__cond == __tmp_3) && main__i <= 2147483646) && main__nlen <= 2147483647) && 0 <= __VERIFIER_assert__cond) && __VERIFIER_assert__cond <= 1) && (if main__i + 1 <= main__nlen then 1 else 0) == __tmp_3) && 0 <= __VERIFIER_assert__cond) && __VERIFIER_assert__cond <= 1) && __return_100 == 0) && 1 <= main__nlen) && __tmp_1 <= 1) && 0 <= __tmp_1) && #NULL == 0) && main__j < 8) && __tmp_2 <= 1) && 0 <= unknown-#StackHeapBarrier-unknown) && __return_main == 0) && 0 <= main__i) && #NULL == 0) && 0 <= __tmp_2)) || (((((((((((((((((((__VERIFIER_assert__cond == __tmp_1 && unknown-#length-unknown[3] == 12) && main__nlen <= 2147483647) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && __return_100 == 0) && (if main__i + 1 <= main__nlen then 1 else 0) == __tmp_1) && main__i == 0) && main__j == 0) && \valid[1] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && 27 == unknown-#length-unknown[2]) && unknown-#memory_int-unknown[1][1] == 0) && __return_main == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) && main__i < main__nlen) RESULT: Ultimate proved your program to be correct! [2022-11-19 08:16:20,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a501596-d90d-44e5-bc1f-04ca1139a3c4/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE