./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d04e0a263780757f9d0a81eb77d81932d95f9f5fc37920c99d442b84c4e5091a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:06:03,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:06:03,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:06:03,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:06:03,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:06:03,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:06:03,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:06:03,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:06:03,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:06:03,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:06:03,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:06:03,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:06:03,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:06:03,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:06:03,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:06:03,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:06:03,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:06:03,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:06:03,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:06:03,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:06:03,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:06:03,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:06:03,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:06:03,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:06:03,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:06:03,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:06:03,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:06:03,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:06:03,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:06:03,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:06:03,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:06:03,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:06:03,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:06:03,205 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:06:03,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:06:03,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:06:03,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:06:03,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:06:03,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:06:03,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:06:03,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:06:03,211 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:06:03,259 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:06:03,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:06:03,259 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:06:03,260 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:06:03,260 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:06:03,261 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:06:03,261 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:06:03,261 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:06:03,261 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:06:03,261 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:06:03,262 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:06:03,262 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:06:03,262 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:06:03,262 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:06:03,263 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:06:03,263 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:06:03,263 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:06:03,263 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:06:03,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:06:03,264 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:06:03,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:06:03,265 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:06:03,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:06:03,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:06:03,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:06:03,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:06:03,266 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:06:03,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:06:03,266 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:06:03,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:06:03,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:06:03,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:06:03,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:06:03,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:06:03,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:06:03,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:06:03,276 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:06:03,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:06:03,276 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:06:03,276 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:06:03,276 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:06:03,277 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d04e0a263780757f9d0a81eb77d81932d95f9f5fc37920c99d442b84c4e5091a [2021-11-23 02:06:03,625 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:06:03,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:06:03,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:06:03,672 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:06:03,673 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:06:03,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c [2021-11-23 02:06:03,775 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/data/0807a8622/91a0ed69e2d44dda9749d581bc8586c7/FLAGb048f8a14 [2021-11-23 02:06:04,334 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:06:04,335 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c [2021-11-23 02:06:04,351 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/data/0807a8622/91a0ed69e2d44dda9749d581bc8586c7/FLAGb048f8a14 [2021-11-23 02:06:04,661 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/data/0807a8622/91a0ed69e2d44dda9749d581bc8586c7 [2021-11-23 02:06:04,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:06:04,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:06:04,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:06:04,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:06:04,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:06:04,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:06:04" (1/1) ... [2021-11-23 02:06:04,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29934141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:04, skipping insertion in model container [2021-11-23 02:06:04,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:06:04" (1/1) ... [2021-11-23 02:06:04,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:06:04,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:06:04,935 WARN L230 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_693dc402-2b4a-4ee1-a818-758ce7cb6133/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[1126,1139] [2021-11-23 02:06:04,947 WARN L230 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_693dc402-2b4a-4ee1-a818-758ce7cb6133/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[1880,1893] [2021-11-23 02:06:04,952 WARN L230 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_693dc402-2b4a-4ee1-a818-758ce7cb6133/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[2401,2414] [2021-11-23 02:06:04,958 WARN L230 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_693dc402-2b4a-4ee1-a818-758ce7cb6133/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[3193,3206] [2021-11-23 02:06:04,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:06:04,970 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:06:04,990 WARN L230 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_693dc402-2b4a-4ee1-a818-758ce7cb6133/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[1126,1139] [2021-11-23 02:06:04,995 WARN L230 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_693dc402-2b4a-4ee1-a818-758ce7cb6133/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[1880,1893] [2021-11-23 02:06:04,999 WARN L230 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_693dc402-2b4a-4ee1-a818-758ce7cb6133/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[2401,2414] [2021-11-23 02:06:05,005 WARN L230 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_693dc402-2b4a-4ee1-a818-758ce7cb6133/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i.v+lhb-reducer.c[3193,3206] [2021-11-23 02:06:05,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:06:05,037 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:06:05,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:05 WrapperNode [2021-11-23 02:06:05,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:06:05,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:06:05,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:06:05,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:06:05,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:05" (1/1) ... [2021-11-23 02:06:05,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:05" (1/1) ... [2021-11-23 02:06:05,122 INFO L137 Inliner]: procedures = 15, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 148 [2021-11-23 02:06:05,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:06:05,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:06:05,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:06:05,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:06:05,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:05" (1/1) ... [2021-11-23 02:06:05,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:05" (1/1) ... [2021-11-23 02:06:05,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:05" (1/1) ... [2021-11-23 02:06:05,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:05" (1/1) ... [2021-11-23 02:06:05,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:05" (1/1) ... [2021-11-23 02:06:05,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:05" (1/1) ... [2021-11-23 02:06:05,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:05" (1/1) ... [2021-11-23 02:06:05,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:06:05,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:06:05,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:06:05,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:06:05,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:05" (1/1) ... [2021-11-23 02:06:05,184 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:06:05,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:06:05,223 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:06:05,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:06:05,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:06:05,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:06:05,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:06:05,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:06:05,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:06:05,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:06:05,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:06:05,390 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:06:05,392 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:06:05,614 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:06:05,629 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:06:05,629 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 02:06:05,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:06:05 BoogieIcfgContainer [2021-11-23 02:06:05,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:06:05,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:06:05,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:06:05,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:06:05,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:06:04" (1/3) ... [2021-11-23 02:06:05,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7110c1e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:06:05, skipping insertion in model container [2021-11-23 02:06:05,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:06:05" (2/3) ... [2021-11-23 02:06:05,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7110c1e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:06:05, skipping insertion in model container [2021-11-23 02:06:05,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:06:05" (3/3) ... [2021-11-23 02:06:05,659 INFO L111 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i.v+lhb-reducer.c [2021-11-23 02:06:05,665 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:06:05,665 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-23 02:06:05,740 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:06:05,748 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:06:05,748 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-23 02:06:05,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 30 states have (on average 1.7) internal successors, (51), 34 states have internal predecessors, (51), 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) [2021-11-23 02:06:05,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 02:06:05,782 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:05,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:06:05,783 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:06:05,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:05,790 INFO L85 PathProgramCache]: Analyzing trace with hash -238958999, now seen corresponding path program 1 times [2021-11-23 02:06:05,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:05,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042423310] [2021-11-23 02:06:05,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:05,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:06,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:06:06,161 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:06,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042423310] [2021-11-23 02:06:06,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042423310] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:06,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:06,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:06:06,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242045295] [2021-11-23 02:06:06,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:06,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:06:06,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:06,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:06:06,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:06:06,231 INFO L87 Difference]: Start difference. First operand has 35 states, 30 states have (on average 1.7) internal successors, (51), 34 states have internal predecessors, (51), 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 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-23 02:06:06,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:06,310 INFO L93 Difference]: Finished difference Result 47 states and 64 transitions. [2021-11-23 02:06:06,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:06:06,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-11-23 02:06:06,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:06,324 INFO L225 Difference]: With dead ends: 47 [2021-11-23 02:06:06,324 INFO L226 Difference]: Without dead ends: 29 [2021-11-23 02:06:06,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:06:06,338 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 16 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:06,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 58 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:06:06,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-23 02:06:06,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2021-11-23 02:06:06,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 26 states have internal predecessors, (32), 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) [2021-11-23 02:06:06,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2021-11-23 02:06:06,391 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 8 [2021-11-23 02:06:06,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:06,392 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2021-11-23 02:06:06,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-23 02:06:06,392 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2021-11-23 02:06:06,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 02:06:06,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:06,393 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:06:06,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:06:06,394 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:06:06,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:06,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1055861953, now seen corresponding path program 1 times [2021-11-23 02:06:06,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:06,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714573306] [2021-11-23 02:06:06,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:06,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:06,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:06:06,446 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:06,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714573306] [2021-11-23 02:06:06,448 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714573306] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:06,448 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:06,448 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:06:06,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996100724] [2021-11-23 02:06:06,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:06,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:06:06,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:06,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:06:06,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:06:06,458 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-11-23 02:06:06,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:06,509 INFO L93 Difference]: Finished difference Result 55 states and 63 transitions. [2021-11-23 02:06:06,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:06:06,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2021-11-23 02:06:06,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:06,511 INFO L225 Difference]: With dead ends: 55 [2021-11-23 02:06:06,511 INFO L226 Difference]: Without dead ends: 34 [2021-11-23 02:06:06,512 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:06:06,514 INFO L933 BasicCegarLoop]: 27 mSDtfsCounter, 16 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:06,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 36 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:06:06,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-11-23 02:06:06,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 27. [2021-11-23 02:06:06,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 26 states have internal predecessors, (31), 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) [2021-11-23 02:06:06,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2021-11-23 02:06:06,525 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 9 [2021-11-23 02:06:06,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:06,526 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-11-23 02:06:06,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-11-23 02:06:06,526 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2021-11-23 02:06:06,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 02:06:06,527 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:06,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:06:06,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:06:06,528 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:06:06,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:06,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1125304774, now seen corresponding path program 1 times [2021-11-23 02:06:06,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:06,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563142994] [2021-11-23 02:06:06,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:06,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:06,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:06,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:06:06,587 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:06,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563142994] [2021-11-23 02:06:06,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563142994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:06,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:06,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:06:06,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852001440] [2021-11-23 02:06:06,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:06,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:06:06,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:06,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:06:06,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:06:06,591 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-11-23 02:06:06,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:06,629 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2021-11-23 02:06:06,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:06:06,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2021-11-23 02:06:06,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:06,645 INFO L225 Difference]: With dead ends: 48 [2021-11-23 02:06:06,645 INFO L226 Difference]: Without dead ends: 46 [2021-11-23 02:06:06,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:06:06,648 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 23 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:06,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 79 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:06:06,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-23 02:06:06,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 29. [2021-11-23 02:06:06,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 28 states have internal predecessors, (33), 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) [2021-11-23 02:06:06,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2021-11-23 02:06:06,658 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 9 [2021-11-23 02:06:06,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:06,658 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-11-23 02:06:06,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-11-23 02:06:06,659 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2021-11-23 02:06:06,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 02:06:06,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:06,674 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:06:06,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:06:06,675 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:06:06,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:06,676 INFO L85 PathProgramCache]: Analyzing trace with hash -461793925, now seen corresponding path program 1 times [2021-11-23 02:06:06,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:06,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613072911] [2021-11-23 02:06:06,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:06,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:06,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:06:06,752 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:06,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613072911] [2021-11-23 02:06:06,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613072911] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:06,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:06,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:06:06,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108808045] [2021-11-23 02:06:06,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:06,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:06:06,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:06,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:06:06,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:06:06,756 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-11-23 02:06:06,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:06,814 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2021-11-23 02:06:06,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:06:06,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2021-11-23 02:06:06,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:06,818 INFO L225 Difference]: With dead ends: 51 [2021-11-23 02:06:06,818 INFO L226 Difference]: Without dead ends: 30 [2021-11-23 02:06:06,819 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:06:06,823 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 8 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:06,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 33 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:06:06,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-23 02:06:06,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2021-11-23 02:06:06,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 23 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) [2021-11-23 02:06:06,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2021-11-23 02:06:06,841 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 10 [2021-11-23 02:06:06,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:06,842 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-11-23 02:06:06,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-11-23 02:06:06,843 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2021-11-23 02:06:06,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 02:06:06,845 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:06,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:06:06,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:06:06,846 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:06:06,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:06,851 INFO L85 PathProgramCache]: Analyzing trace with hash 67089498, now seen corresponding path program 1 times [2021-11-23 02:06:06,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:06,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492572076] [2021-11-23 02:06:06,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:06,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:06,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:08,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:06:08,971 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:08,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492572076] [2021-11-23 02:06:08,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492572076] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:08,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:08,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 02:06:08,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008160595] [2021-11-23 02:06:08,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:08,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:06:08,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:08,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:06:08,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:06:08,978 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-11-23 02:06:09,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:09,429 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2021-11-23 02:06:09,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 02:06:09,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 15 [2021-11-23 02:06:09,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:09,431 INFO L225 Difference]: With dead ends: 42 [2021-11-23 02:06:09,431 INFO L226 Difference]: Without dead ends: 26 [2021-11-23 02:06:09,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-11-23 02:06:09,433 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 50 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:09,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 38 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:06:09,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-23 02:06:09,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2021-11-23 02:06:09,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 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) [2021-11-23 02:06:09,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2021-11-23 02:06:09,441 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 15 [2021-11-23 02:06:09,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:09,442 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-11-23 02:06:09,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-11-23 02:06:09,442 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2021-11-23 02:06:09,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 02:06:09,443 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:09,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:06:09,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:06:09,444 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:06:09,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:09,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1399323306, now seen corresponding path program 1 times [2021-11-23 02:06:09,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:09,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311795497] [2021-11-23 02:06:09,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:09,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:09,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:06:09,508 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:09,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311795497] [2021-11-23 02:06:09,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311795497] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:09,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:06:09,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:06:09,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466271563] [2021-11-23 02:06:09,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:09,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:06:09,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:09,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:06:09,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:06:09,512 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2021-11-23 02:06:09,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:09,596 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2021-11-23 02:06:09,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:06:09,597 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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 16 [2021-11-23 02:06:09,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:09,598 INFO L225 Difference]: With dead ends: 39 [2021-11-23 02:06:09,598 INFO L226 Difference]: Without dead ends: 37 [2021-11-23 02:06:09,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-23 02:06:09,600 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 42 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:09,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 92 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:06:09,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-11-23 02:06:09,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 23. [2021-11-23 02:06:09,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 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) [2021-11-23 02:06:09,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-11-23 02:06:09,608 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2021-11-23 02:06:09,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:09,608 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-11-23 02:06:09,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2021-11-23 02:06:09,609 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2021-11-23 02:06:09,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 02:06:09,610 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:09,610 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:06:09,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:06:09,610 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:06:09,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:09,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1507348966, now seen corresponding path program 1 times [2021-11-23 02:06:09,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:09,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731190055] [2021-11-23 02:06:09,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:09,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:09,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:09,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:06:09,759 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:09,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731190055] [2021-11-23 02:06:09,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731190055] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:06:09,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289951445] [2021-11-23 02:06:09,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:09,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:06:09,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:06:09,764 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:06:09,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:06:09,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:09,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 02:06:09,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:06:10,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:06:10,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:06:10,164 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:06:10,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289951445] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:06:10,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1880845447] [2021-11-23 02:06:10,187 INFO L159 IcfgInterpreter]: Started Sifa with 17 locations of interest [2021-11-23 02:06:10,188 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:06:10,193 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:06:10,200 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:06:10,201 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:06:10,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:10,333 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 02:06:10,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-23 02:06:10,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:10,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-23 02:06:10,884 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:06:15,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1880845447] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:15,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:06:15,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [6, 4, 4] total 21 [2021-11-23 02:06:15,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467859735] [2021-11-23 02:06:15,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:15,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 02:06:15,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:15,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 02:06:15,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2021-11-23 02:06:15,951 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 14 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 13 states have internal predecessors, (17), 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) [2021-11-23 02:06:16,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:16,487 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2021-11-23 02:06:16,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-23 02:06:16,487 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 13 states have internal predecessors, (17), 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 18 [2021-11-23 02:06:16,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:16,488 INFO L225 Difference]: With dead ends: 38 [2021-11-23 02:06:16,489 INFO L226 Difference]: Without dead ends: 30 [2021-11-23 02:06:16,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2021-11-23 02:06:16,490 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 16 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:16,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 33 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 02:06:16,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-23 02:06:16,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2021-11-23 02:06:16,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.08) internal successors, (27), 25 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) [2021-11-23 02:06:16,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2021-11-23 02:06:16,499 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 18 [2021-11-23 02:06:16,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:16,499 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2021-11-23 02:06:16,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 13 states have internal predecessors, (17), 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) [2021-11-23 02:06:16,500 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2021-11-23 02:06:16,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 02:06:16,501 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:06:16,501 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:06:16,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:06:16,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-23 02:06:16,702 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:06:16,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:06:16,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1799200339, now seen corresponding path program 1 times [2021-11-23 02:06:16,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:06:16,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079093394] [2021-11-23 02:06:16,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:16,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:06:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:16,983 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:06:16,983 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:06:16,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079093394] [2021-11-23 02:06:16,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079093394] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:06:16,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422064285] [2021-11-23 02:06:16,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:06:16,984 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:06:16,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:06:16,985 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:06:17,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:06:17,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:06:17,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 02:06:17,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:06:17,239 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:06:17,240 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:06:18,238 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:06:18,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422064285] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:06:18,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1077741679] [2021-11-23 02:06:18,241 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2021-11-23 02:06:18,241 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:06:18,242 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:06:18,242 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:06:18,242 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:06:18,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:18,291 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-23 02:06:18,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2021-11-23 02:06:18,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:06:18,334 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 02:06:18,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-23 02:06:18,922 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:06:26,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1077741679] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:06:26,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:06:26,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [8, 4, 4] total 26 [2021-11-23 02:06:26,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441079052] [2021-11-23 02:06:26,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:06:26,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-23 02:06:26,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:06:26,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-23 02:06:26,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=506, Unknown=0, NotChecked=0, Total=650 [2021-11-23 02:06:26,008 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 16 states have internal predecessors, (22), 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) [2021-11-23 02:06:26,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:06:26,995 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2021-11-23 02:06:26,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 02:06:26,996 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 16 states have internal predecessors, (22), 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 25 [2021-11-23 02:06:26,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:06:26,996 INFO L225 Difference]: With dead ends: 26 [2021-11-23 02:06:26,996 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 02:06:26,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 54 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=160, Invalid=542, Unknown=0, NotChecked=0, Total=702 [2021-11-23 02:06:26,998 INFO L933 BasicCegarLoop]: 2 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:06:26,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 2 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 02:06:26,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 02:06:27,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 02:06:27,000 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) [2021-11-23 02:06:27,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 02:06:27,000 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2021-11-23 02:06:27,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:06:27,000 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 02:06:27,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 16 states have internal predecessors, (22), 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) [2021-11-23 02:06:27,001 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 02:06:27,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 02:06:27,003 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2021-11-23 02:06:27,004 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2021-11-23 02:06:27,004 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2021-11-23 02:06:27,004 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2021-11-23 02:06:27,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:06:27,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:06:27,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 02:06:32,483 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 93) no Hoare annotation was computed. [2021-11-23 02:06:32,483 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 73) no Hoare annotation was computed. [2021-11-23 02:06:32,484 INFO L854 garLoopResultBuilder]: At program point L151(lines 29 152) the Hoare annotation is: false [2021-11-23 02:06:32,484 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 02:06:32,484 INFO L854 garLoopResultBuilder]: At program point L119(lines 98 128) the Hoare annotation is: (let ((.cse30 (select |#memory_int| 1)) (.cse6 (select |#memory_int| |ULTIMATE.start_main_~#main__array~0#1.base|)) (.cse14 (mod |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1| 4294967296))) (let ((.cse0 (= (select |#length| 3) 12)) (.cse1 (= 45 (select |#length| 2))) (.cse3 (= |ULTIMATE.start_main_~__tmp_1~0#1| 1)) (.cse4 (= ~__tmp_155_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|)) (.cse5 (= 2 (select |#length| 1))) (.cse9 (= (select |#valid| 3) 1)) (.cse10 (< .cse14 100000)) (.cse11 (= |ULTIMATE.start_main_~main__loop_entered~0#1| 1)) (.cse12 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#main__array~0#1.base|)) (.cse15 (= ~__return_136~0 0)) (.cse16 (= (select |#valid| 1) 1)) (.cse19 (mod (select .cse6 (+ |ULTIMATE.start_main_~#main__array~0#1.offset| (* (ite (<= .cse14 2147483647) .cse14 (+ .cse14 (- 4294967296))) 4))) 4294967296)) (.cse2 (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 1)) (.cse17 (= 400000 (select |#length| |ULTIMATE.start_main_~#main__array~0#1.base|))) (.cse18 (= (select |#valid| 0) 0)) (.cse20 (= (select |#valid| 2) 1)) (.cse21 (= |#NULL.offset| 0)) (.cse22 (= (select |#valid| |ULTIMATE.start_main_~#main__array~0#1.base|) 1)) (.cse23 (= (select .cse30 0) 48)) (.cse24 (= (select .cse30 1) 0)) (.cse25 (= ~__return_main~0 0)) (.cse26 (= |ULTIMATE.start_main_~#main__array~0#1.offset| 0)) (.cse27 (< 0 |#StackHeapBarrier|)) (.cse28 (= |#NULL.base| 0))) (or (let ((.cse13 (mod |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 4294967296)) (.cse7 (mod (+ 4294967295 |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) 4294967296)) (.cse8 (mod |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1| 4294967296))) (and (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| |ULTIMATE.start_main_~__tmp_1~0#1|) .cse0 .cse1 (= .cse2 |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1|) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~2#1| |ULTIMATE.start_main_~__tmp_3~0#1|) (= ~__tmp_155_0~0 |ULTIMATE.start_main_~__tmp_1~0#1|) .cse3 (= |ULTIMATE.start_main_~main__index2~0#1| |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) .cse4 (= (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_3~0#1| 1) |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) (= (+ |ULTIMATE.start_main_~main__index1~0#1| 1) |ULTIMATE.start_main_~main____CPAchecker_TMP_4~0#1|) .cse5 (= (ite (= (mod (select .cse6 (+ |ULTIMATE.start_main_~#main__array~0#1.offset| (* (ite (<= .cse7 2147483647) .cse7 (+ (- 4294967296) .cse7)) 4))) 4294967296) (mod (select .cse6 (+ |ULTIMATE.start_main_~#main__array~0#1.offset| (* (ite (<= .cse8 2147483647) .cse8 (+ .cse8 (- 4294967296))) 4))) 4294967296)) 1 0) |ULTIMATE.start_main_~__tmp_3~0#1|) .cse9 .cse10 .cse11 .cse12 (< .cse13 .cse14) .cse15 .cse16 .cse17 .cse18 (= (mod (select .cse6 (+ |ULTIMATE.start_main_~#main__array~0#1.offset| (* (ite (<= .cse13 2147483647) .cse13 (+ .cse13 (- 4294967296))) 4))) 4294967296) .cse19) .cse20 .cse21 (< .cse7 .cse8) .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28)) (let ((.cse29 (mod (+ 4294967295 |ULTIMATE.start_main_~main__index1~0#1|) 4294967296))) (and .cse0 .cse1 .cse3 .cse4 (< .cse29 .cse14) .cse5 (= ~__tmp_155_0~0 1) .cse9 .cse10 .cse11 .cse12 .cse15 .cse16 (= .cse19 (mod (select .cse6 (+ |ULTIMATE.start_main_~#main__array~0#1.offset| (* (ite (<= .cse29 2147483647) .cse29 (+ (- 4294967296) .cse29)) 4))) 4294967296)) (= .cse2 |ULTIMATE.start_main_~main__index1~0#1|) .cse17 (= (+ |ULTIMATE.start_main_~main__index2~0#1| 1) |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) .cse18 .cse20 .cse21 .cse22 .cse23 (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| 1) .cse24 (<= (mod |ULTIMATE.start_main_~main__index2~0#1| 4294967296) (mod |ULTIMATE.start_main_~main__index1~0#1| 4294967296)) .cse25 .cse26 .cse27 .cse28))))) [2021-11-23 02:06:32,484 INFO L861 garLoopResultBuilder]: At program point L194(lines 14 196) the Hoare annotation is: true [2021-11-23 02:06:32,484 INFO L858 garLoopResultBuilder]: For program point L62(lines 62 88) no Hoare annotation was computed. [2021-11-23 02:06:32,484 INFO L858 garLoopResultBuilder]: For program point L29(lines 29 152) no Hoare annotation was computed. [2021-11-23 02:06:32,485 INFO L854 garLoopResultBuilder]: At program point L87(lines 62 88) the Hoare annotation is: (let ((.cse1 (mod |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 4294967296)) (.cse0 (mod |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1| 4294967296)) (.cse3 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 1) (= (select |#length| 3) 12) (= 45 (select |#length| 2)) (= ~__tmp_155_0~0 |ULTIMATE.start_main_~__tmp_1~0#1|) (= |ULTIMATE.start_main_~__tmp_1~0#1| 1) (= ~__tmp_155_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (< .cse0 100000) (= |ULTIMATE.start_main_~main__loop_entered~0#1| 1) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#main__array~0#1.base|) (< .cse1 .cse0) (= ~__return_136~0 0) (<= (+ |ULTIMATE.start_main_~main__index1~0#1| 1 (* 4294967296 (div |ULTIMATE.start_main_~main__index2~0#1| 4294967296))) (+ (* 4294967296 (div |ULTIMATE.start_main_~main__index1~0#1| 4294967296)) |ULTIMATE.start_main_~main__index2~0#1|)) (= (select |#valid| 1) 1) (= (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 1) |ULTIMATE.start_main_~main__index1~0#1|) (= 400000 (select |#length| |ULTIMATE.start_main_~#main__array~0#1.base|)) (= (+ |ULTIMATE.start_main_~main__index2~0#1| 1) |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) (= (select |#valid| 0) 0) (let ((.cse2 (select |#memory_int| |ULTIMATE.start_main_~#main__array~0#1.base|))) (= (mod (select .cse2 (+ |ULTIMATE.start_main_~#main__array~0#1.offset| (* (ite (<= .cse1 2147483647) .cse1 (+ .cse1 (- 4294967296))) 4))) 4294967296) (mod (select .cse2 (+ |ULTIMATE.start_main_~#main__array~0#1.offset| (* (ite (<= .cse0 2147483647) .cse0 (+ .cse0 (- 4294967296))) 4))) 4294967296))) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~#main__array~0#1.base|) 1) (= (select .cse3 0) 48) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| 1) (= (select .cse3 1) 0) (= ~__return_main~0 0) (= |ULTIMATE.start_main_~#main__array~0#1.offset| 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2021-11-23 02:06:32,485 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 167) no Hoare annotation was computed. [2021-11-23 02:06:32,486 INFO L858 garLoopResultBuilder]: For program point L21(lines 21 195) no Hoare annotation was computed. [2021-11-23 02:06:32,486 INFO L854 garLoopResultBuilder]: At program point L79(lines 46 139) the Hoare annotation is: (let ((.cse24 (select |#memory_int| 1)) (.cse10 (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 1))) (let ((.cse0 (= (select |#length| 3) 12)) (.cse1 (= 45 (select |#length| 2))) (.cse2 (= ~__tmp_155_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|)) (.cse3 (= 2 (select |#length| 1))) (.cse4 (= (select |#valid| 3) 1)) (.cse5 (< |#StackHeapBarrier| |ULTIMATE.start_main_~#main__array~0#1.base|)) (.cse6 (let ((.cse28 (* 4294967296 (div |ULTIMATE.start_main_~main__index2~0#1| 4294967296)))) (let ((.cse25 (<= |ULTIMATE.start_main_~main__index2~0#1| (+ 99999 .cse28))) (.cse26 (<= (+ |ULTIMATE.start_main_~main__index1~0#1| 1 .cse28) (+ (* 4294967296 (div |ULTIMATE.start_main_~main__index1~0#1| 4294967296)) |ULTIMATE.start_main_~main__index2~0#1|))) (.cse27 (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| 1))) (or (and (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1| 0)) .cse25 .cse26 (not (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 0)) .cse27) (and .cse25 .cse26 .cse10 .cse27))))) (.cse7 (= ~__return_136~0 0)) (.cse8 (= (select |#valid| 1) 1)) (.cse9 (= 400000 (select |#length| |ULTIMATE.start_main_~#main__array~0#1.base|))) (.cse11 (= (select |#valid| 0) 0)) (.cse12 (= (select |#valid| 2) 1)) (.cse13 (= |#NULL.offset| 0)) (.cse14 (= (select |#valid| |ULTIMATE.start_main_~#main__array~0#1.base|) 1)) (.cse15 (= (select .cse24 0) 48)) (.cse16 (= (select .cse24 1) 0)) (.cse17 (= ~__return_main~0 0)) (.cse18 (= |ULTIMATE.start_main_~#main__array~0#1.offset| 0)) (.cse19 (< 0 |#StackHeapBarrier|)) (.cse20 (= |#NULL.base| 0))) (or (and (= |ULTIMATE.start_main_~main__loop_entered~0#1| 0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| |ULTIMATE.start_main_~__tmp_1~0#1|) .cse16 .cse17 .cse18 .cse19 .cse20) (let ((.cse22 (mod |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 4294967296)) (.cse21 (mod |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1| 4294967296))) (and (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| 1) .cse0 (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~1#1| |ULTIMATE.start_main_~__tmp_2~0#1|) .cse1 (= ~__tmp_155_0~0 |ULTIMATE.start_main_~__tmp_1~0#1|) (= |ULTIMATE.start_main_~__tmp_1~0#1| 1) .cse2 .cse3 .cse4 (< .cse21 100000) (= |ULTIMATE.start_main_~main__loop_entered~0#1| 1) .cse5 .cse6 (< .cse22 .cse21) .cse7 .cse8 (= (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 1) |ULTIMATE.start_main_~main__index1~0#1|) .cse9 (= (+ |ULTIMATE.start_main_~main__index2~0#1| 1) |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) .cse11 (let ((.cse23 (select |#memory_int| |ULTIMATE.start_main_~#main__array~0#1.base|))) (= (mod (select .cse23 (+ |ULTIMATE.start_main_~#main__array~0#1.offset| (* (ite (<= .cse22 2147483647) .cse22 (+ .cse22 (- 4294967296))) 4))) 4294967296) (mod (select .cse23 (+ |ULTIMATE.start_main_~#main__array~0#1.offset| (* (ite (<= .cse21 2147483647) .cse21 (+ .cse21 (- 4294967296))) 4))) 4294967296))) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~1#1| |ULTIMATE.start_main_~__tmp_2~0#1|) .cse20))))) [2021-11-23 02:06:32,486 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 80) no Hoare annotation was computed. [2021-11-23 02:06:32,487 INFO L854 garLoopResultBuilder]: At program point L146(lines 31 147) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div |ULTIMATE.start_main_~main__index2~0#1| 4294967296))) (.cse1 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~main__loop_entered~0#1| 0) (= (select |#length| 3) 12) (= 45 (select |#length| 2)) (= ~__tmp_155_0~0 0) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#main__array~0#1.base|) (= ~__return_136~0 0) (<= |ULTIMATE.start_main_~main__index2~0#1| (+ 99999 .cse0)) (<= (+ |ULTIMATE.start_main_~main__index1~0#1| 1 .cse0) (+ (* 4294967296 (div |ULTIMATE.start_main_~main__index1~0#1| 4294967296)) |ULTIMATE.start_main_~main__index2~0#1|)) (= (select |#valid| 1) 1) (= 400000 (select |#length| |ULTIMATE.start_main_~#main__array~0#1.base|)) (= |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1| 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~#main__array~0#1.base|) 1) (= (select .cse1 0) 48) (= (select .cse1 1) 0) (= ~__return_main~0 0) (= |ULTIMATE.start_main_~#main__array~0#1.offset| 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2021-11-23 02:06:32,487 INFO L858 garLoopResultBuilder]: For program point L97(lines 97 132) no Hoare annotation was computed. [2021-11-23 02:06:32,487 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 147) no Hoare annotation was computed. [2021-11-23 02:06:32,487 INFO L854 garLoopResultBuilder]: At program point L172(lines 26 185) the Hoare annotation is: (let ((.cse3 (mod |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1| 4294967296)) (.cse1 (mod |ULTIMATE.start_main_~main__index2~0#1| 4294967296)) (.cse2 (mod |ULTIMATE.start_main_~main__index1~0#1| 4294967296)) (.cse4 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= 45 (select |#length| 2)) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~2#1| |ULTIMATE.start_main_~__tmp_3~0#1|) (= |ULTIMATE.start_main_~__tmp_1~0#1| 1) (= |ULTIMATE.start_main_~__tmp_3~0#1| (ite (let ((.cse0 (select |#memory_int| |ULTIMATE.start_main_~#main__array~0#1.base|))) (= (mod (select .cse0 (+ (* (ite (<= .cse1 2147483647) .cse1 (+ .cse1 (- 4294967296))) 4) |ULTIMATE.start_main_~#main__array~0#1.offset|)) 4294967296) (mod (select .cse0 (+ |ULTIMATE.start_main_~#main__array~0#1.offset| (* (ite (<= .cse2 2147483647) .cse2 (+ .cse2 (- 4294967296))) 4))) 4294967296))) 1 0)) (= ~__tmp_155_0~0 |ULTIMATE.start_main_~main____CPAchecker_TMP_0~0#1|) (< (mod (+ 4294967295 |ULTIMATE.start_main_~main__index1~0#1|) 4294967296) .cse3) (= 2 (select |#length| 1)) (= ~__tmp_155_0~0 1) (= (select |#valid| 3) 1) (< .cse3 100000) (= |ULTIMATE.start_main_~main__loop_entered~0#1| 1) (< .cse1 .cse2) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#main__array~0#1.base|) (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~2#1| 0)) (= ~__return_136~0 0) (= (select |#valid| 1) 1) (= (+ |ULTIMATE.start_main_~main____CPAchecker_TMP_1~0#1| 1) |ULTIMATE.start_main_~main__index1~0#1|) (= 400000 (select |#length| |ULTIMATE.start_main_~#main__array~0#1.base|)) (= (+ |ULTIMATE.start_main_~main__index2~0#1| 1) |ULTIMATE.start_main_~main____CPAchecker_TMP_2~0#1|) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~#main__array~0#1.base|) 1) (= (select .cse4 0) 48) (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~0#1| 1) (= (select .cse4 1) 0) (= ~__return_main~0 0) (= |ULTIMATE.start_main_~#main__array~0#1.offset| 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2021-11-23 02:06:32,487 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-11-23 02:06:32,487 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 139) no Hoare annotation was computed. [2021-11-23 02:06:32,489 INFO L861 garLoopResultBuilder]: At program point L131(lines 97 132) the Hoare annotation is: true [2021-11-23 02:06:32,489 INFO L858 garLoopResultBuilder]: For program point L156(lines 156 184) no Hoare annotation was computed. [2021-11-23 02:06:32,489 INFO L858 garLoopResultBuilder]: For program point L57(lines 57 133) no Hoare annotation was computed. [2021-11-23 02:06:32,489 INFO L858 garLoopResultBuilder]: For program point L24(lines 24 190) no Hoare annotation was computed. [2021-11-23 02:06:32,490 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2021-11-23 02:06:32,490 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 120) no Hoare annotation was computed. [2021-11-23 02:06:32,491 INFO L858 garLoopResultBuilder]: For program point L165(lines 165 173) no Hoare annotation was computed. [2021-11-23 02:06:32,491 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 02:06:32,491 INFO L858 garLoopResultBuilder]: For program point L50(lines 50 138) no Hoare annotation was computed. [2021-11-23 02:06:32,491 INFO L858 garLoopResultBuilder]: For program point L42(line 42) no Hoare annotation was computed. [2021-11-23 02:06:32,491 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 179) no Hoare annotation was computed. [2021-11-23 02:06:32,491 INFO L854 garLoopResultBuilder]: At program point L92(lines 60 93) the Hoare annotation is: false [2021-11-23 02:06:32,491 INFO L858 garLoopResultBuilder]: For program point L26(lines 26 185) no Hoare annotation was computed. [2021-11-23 02:06:32,492 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 109) no Hoare annotation was computed. [2021-11-23 02:06:32,492 INFO L858 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-11-23 02:06:32,492 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-11-23 02:06:32,494 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:06:32,496 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:06:32,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:06:32 BoogieIcfgContainer [2021-11-23 02:06:32,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:06:32,541 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:06:32,541 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:06:32,541 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:06:32,542 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:06:05" (3/4) ... [2021-11-23 02:06:32,545 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 02:06:32,557 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-11-23 02:06:32,558 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 02:06:32,558 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 02:06:32,559 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:06:32,614 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 02:06:32,615 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:06:32,616 INFO L158 Benchmark]: Toolchain (without parser) took 27945.01ms. Allocated memory was 98.6MB in the beginning and 201.3MB in the end (delta: 102.8MB). Free memory was 58.0MB in the beginning and 126.7MB in the end (delta: -68.7MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2021-11-23 02:06:32,616 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 98.6MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:06:32,616 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.47ms. Allocated memory is still 98.6MB. Free memory was 57.8MB in the beginning and 73.1MB in the end (delta: -15.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 02:06:32,617 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.23ms. Allocated memory is still 98.6MB. Free memory was 73.1MB in the beginning and 71.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:06:32,617 INFO L158 Benchmark]: Boogie Preprocessor took 47.64ms. Allocated memory is still 98.6MB. Free memory was 71.4MB in the beginning and 70.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:06:32,618 INFO L158 Benchmark]: RCFGBuilder took 460.04ms. Allocated memory is still 98.6MB. Free memory was 70.0MB in the beginning and 57.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 02:06:32,618 INFO L158 Benchmark]: TraceAbstraction took 26905.26ms. Allocated memory was 98.6MB in the beginning and 201.3MB in the end (delta: 102.8MB). Free memory was 57.0MB in the beginning and 131.9MB in the end (delta: -74.9MB). Peak memory consumption was 100.5MB. Max. memory is 16.1GB. [2021-11-23 02:06:32,619 INFO L158 Benchmark]: Witness Printer took 74.37ms. Allocated memory is still 201.3MB. Free memory was 131.9MB in the beginning and 126.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 02:06:32,621 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 98.6MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 365.47ms. Allocated memory is still 98.6MB. Free memory was 57.8MB in the beginning and 73.1MB in the end (delta: -15.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.23ms. Allocated memory is still 98.6MB. Free memory was 73.1MB in the beginning and 71.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.64ms. Allocated memory is still 98.6MB. Free memory was 71.4MB in the beginning and 70.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 460.04ms. Allocated memory is still 98.6MB. Free memory was 70.0MB in the beginning and 57.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 26905.26ms. Allocated memory was 98.6MB in the beginning and 201.3MB in the end (delta: 102.8MB). Free memory was 57.0MB in the beginning and 131.9MB in the end (delta: -74.9MB). Peak memory consumption was 100.5MB. Max. memory is 16.1GB. * Witness Printer took 74.37ms. Allocated memory is still 201.3MB. Free memory was 131.9MB in the beginning and 126.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. 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: 42]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 73]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 109]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 167]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 26.8s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 188 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 188 mSDsluCounter, 371 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 208 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 468 IncrementalHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 164 mSDtfsCounter, 468 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 178 GetRequests, 106 SyntacticMatches, 6 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 14.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 51 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 22 NumberOfFragments, 1330 HoareAnnotationTreeSize, 9 FomulaSimplifications, 703 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 2533 FormulaSimplificationTreeSizeReductionInter, 5.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 184 ConstructedInterpolants, 0 QuantifiedInterpolants, 3976 SizeOfPredicates, 4 NumberOfNonLiveVariables, 228 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 12/21 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: 1.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 37, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 51, TOOLS_POST_TIME: 0.9s, 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: 51, TOOLS_QUANTIFIERELIM_TIME: 0.9s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 96, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 4, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 37, DOMAIN_ISBOTTOM_TIME: 0.2s, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME: 0.3s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.3s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, 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: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 475, DAG_COMPRESSION_RETAINED_NODES: 105, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((__VERIFIER_assert__cond == __tmp_1 && unknown-#length-unknown[3] == 12) && 45 == unknown-#length-unknown[2]) && main____CPAchecker_TMP_1 + 1 == main____CPAchecker_TMP_4) && __VERIFIER_assert__cond == __tmp_3) && __tmp_155_0 == __tmp_1) && __tmp_1 == 1) && main__index2 == main____CPAchecker_TMP_2) && __tmp_155_0 == main____CPAchecker_TMP_0) && main____CPAchecker_TMP_3 + 1 == main____CPAchecker_TMP_2) && main__index1 + 1 == main____CPAchecker_TMP_4) && 2 == unknown-#length-unknown[1]) && (if unknown-#memory_int-unknown[main__array][main__array + (if (4294967295 + main____CPAchecker_TMP_2) % 4294967296 <= 2147483647 then (4294967295 + main____CPAchecker_TMP_2) % 4294967296 else -4294967296 + (4294967295 + main____CPAchecker_TMP_2) % 4294967296) * 4] % 4294967296 == unknown-#memory_int-unknown[main__array][main__array + (if main____CPAchecker_TMP_4 % 4294967296 <= 2147483647 then main____CPAchecker_TMP_4 % 4294967296 else main____CPAchecker_TMP_4 % 4294967296 + -4294967296) * 4] % 4294967296 then 1 else 0) == __tmp_3) && \valid[3] == 1) && main____CPAchecker_TMP_2 % 4294967296 < 100000) && main__loop_entered == 1) && unknown-#StackHeapBarrier-unknown < main__array) && main____CPAchecker_TMP_1 % 4294967296 < main____CPAchecker_TMP_2 % 4294967296) && __return_136 == 0) && \valid[1] == 1) && 400000 == unknown-#length-unknown[main__array]) && \valid[0] == 0) && unknown-#memory_int-unknown[main__array][main__array + (if main____CPAchecker_TMP_1 % 4294967296 <= 2147483647 then main____CPAchecker_TMP_1 % 4294967296 else main____CPAchecker_TMP_1 % 4294967296 + -4294967296) * 4] % 4294967296 == unknown-#memory_int-unknown[main__array][main__array + (if main____CPAchecker_TMP_2 % 4294967296 <= 2147483647 then main____CPAchecker_TMP_2 % 4294967296 else main____CPAchecker_TMP_2 % 4294967296 + -4294967296) * 4] % 4294967296) && \valid[2] == 1) && #NULL == 0) && (4294967295 + main____CPAchecker_TMP_2) % 4294967296 < main____CPAchecker_TMP_4 % 4294967296) && \valid[main__array] == 1) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && __return_main == 0) && main__array == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && 45 == unknown-#length-unknown[2]) && __tmp_1 == 1) && __tmp_155_0 == main____CPAchecker_TMP_0) && (4294967295 + main__index1) % 4294967296 < main____CPAchecker_TMP_2 % 4294967296) && 2 == unknown-#length-unknown[1]) && __tmp_155_0 == 1) && \valid[3] == 1) && main____CPAchecker_TMP_2 % 4294967296 < 100000) && main__loop_entered == 1) && unknown-#StackHeapBarrier-unknown < main__array) && __return_136 == 0) && \valid[1] == 1) && unknown-#memory_int-unknown[main__array][main__array + (if main____CPAchecker_TMP_2 % 4294967296 <= 2147483647 then main____CPAchecker_TMP_2 % 4294967296 else main____CPAchecker_TMP_2 % 4294967296 + -4294967296) * 4] % 4294967296 == unknown-#memory_int-unknown[main__array][main__array + (if (4294967295 + main__index1) % 4294967296 <= 2147483647 then (4294967295 + main__index1) % 4294967296 else -4294967296 + (4294967295 + main__index1) % 4294967296) * 4] % 4294967296) && main____CPAchecker_TMP_1 + 1 == main__index1) && 400000 == unknown-#length-unknown[main__array]) && main__index2 + 1 == main____CPAchecker_TMP_2) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && \valid[main__array] == 1) && unknown-#memory_int-unknown[1][0] == 48) && __VERIFIER_assert__cond == 1) && unknown-#memory_int-unknown[1][1] == 0) && main__index2 % 4294967296 <= main__index1 % 4294967296) && __return_main == 0) && main__array == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (((((((((((((((((((((main__loop_entered == 0 && unknown-#length-unknown[3] == 12) && 45 == unknown-#length-unknown[2]) && __tmp_155_0 == 0) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && unknown-#StackHeapBarrier-unknown < main__array) && __return_136 == 0) && main__index2 <= 99999 + 4294967296 * (main__index2 / 4294967296)) && main__index1 + 1 + 4294967296 * (main__index2 / 4294967296) <= 4294967296 * (main__index1 / 4294967296) + main__index2) && \valid[1] == 1) && 400000 == unknown-#length-unknown[main__array]) && main____CPAchecker_TMP_0 == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && \valid[main__array] == 1) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && __return_main == 0) && main__array == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((main__loop_entered == 0 && unknown-#length-unknown[3] == 12) && 45 == unknown-#length-unknown[2]) && __tmp_155_0 == main____CPAchecker_TMP_0) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && unknown-#StackHeapBarrier-unknown < main__array) && (((((!(__VERIFIER_assert__cond == 0) && main__index2 <= 99999 + 4294967296 * (main__index2 / 4294967296)) && main__index1 + 1 + 4294967296 * (main__index2 / 4294967296) <= 4294967296 * (main__index1 / 4294967296) + main__index2) && !(main____CPAchecker_TMP_0 == 0)) && __VERIFIER_assert__cond == 1) || (((main__index2 <= 99999 + 4294967296 * (main__index2 / 4294967296) && main__index1 + 1 + 4294967296 * (main__index2 / 4294967296) <= 4294967296 * (main__index1 / 4294967296) + main__index2) && main____CPAchecker_TMP_0 == 1) && __VERIFIER_assert__cond == 1))) && __return_136 == 0) && \valid[1] == 1) && 400000 == unknown-#length-unknown[main__array]) && main____CPAchecker_TMP_0 == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && \valid[main__array] == 1) && unknown-#memory_int-unknown[1][0] == 48) && main____CPAchecker_TMP_0 == __tmp_1) && unknown-#memory_int-unknown[1][1] == 0) && __return_main == 0) && main__array == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) || ((((((((((((((((((((((((((((((main____CPAchecker_TMP_0 == 1 && unknown-#length-unknown[3] == 12) && __VERIFIER_assert__cond == __tmp_2) && 45 == unknown-#length-unknown[2]) && __tmp_155_0 == __tmp_1) && __tmp_1 == 1) && __tmp_155_0 == main____CPAchecker_TMP_0) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && main____CPAchecker_TMP_2 % 4294967296 < 100000) && main__loop_entered == 1) && unknown-#StackHeapBarrier-unknown < main__array) && (((((!(__VERIFIER_assert__cond == 0) && main__index2 <= 99999 + 4294967296 * (main__index2 / 4294967296)) && main__index1 + 1 + 4294967296 * (main__index2 / 4294967296) <= 4294967296 * (main__index1 / 4294967296) + main__index2) && !(main____CPAchecker_TMP_0 == 0)) && __VERIFIER_assert__cond == 1) || (((main__index2 <= 99999 + 4294967296 * (main__index2 / 4294967296) && main__index1 + 1 + 4294967296 * (main__index2 / 4294967296) <= 4294967296 * (main__index1 / 4294967296) + main__index2) && main____CPAchecker_TMP_0 == 1) && __VERIFIER_assert__cond == 1))) && main____CPAchecker_TMP_1 % 4294967296 < main____CPAchecker_TMP_2 % 4294967296) && __return_136 == 0) && \valid[1] == 1) && main____CPAchecker_TMP_1 + 1 == main__index1) && 400000 == unknown-#length-unknown[main__array]) && main__index2 + 1 == main____CPAchecker_TMP_2) && \valid[0] == 0) && unknown-#memory_int-unknown[main__array][main__array + (if main____CPAchecker_TMP_1 % 4294967296 <= 2147483647 then main____CPAchecker_TMP_1 % 4294967296 else main____CPAchecker_TMP_1 % 4294967296 + -4294967296) * 4] % 4294967296 == unknown-#memory_int-unknown[main__array][main__array + (if main____CPAchecker_TMP_2 % 4294967296 <= 2147483647 then main____CPAchecker_TMP_2 % 4294967296 else main____CPAchecker_TMP_2 % 4294967296 + -4294967296) * 4] % 4294967296) && \valid[2] == 1) && #NULL == 0) && \valid[main__array] == 1) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && __return_main == 0) && main__array == 0) && 0 < unknown-#StackHeapBarrier-unknown) && main____CPAchecker_TMP_0 == __tmp_2) && #NULL == 0) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((main____CPAchecker_TMP_0 == 1 && unknown-#length-unknown[3] == 12) && 45 == unknown-#length-unknown[2]) && __tmp_155_0 == __tmp_1) && __tmp_1 == 1) && __tmp_155_0 == main____CPAchecker_TMP_0) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && main____CPAchecker_TMP_2 % 4294967296 < 100000) && main__loop_entered == 1) && unknown-#StackHeapBarrier-unknown < main__array) && main____CPAchecker_TMP_1 % 4294967296 < main____CPAchecker_TMP_2 % 4294967296) && __return_136 == 0) && main__index1 + 1 + 4294967296 * (main__index2 / 4294967296) <= 4294967296 * (main__index1 / 4294967296) + main__index2) && \valid[1] == 1) && main____CPAchecker_TMP_1 + 1 == main__index1) && 400000 == unknown-#length-unknown[main__array]) && main__index2 + 1 == main____CPAchecker_TMP_2) && \valid[0] == 0) && unknown-#memory_int-unknown[main__array][main__array + (if main____CPAchecker_TMP_1 % 4294967296 <= 2147483647 then main____CPAchecker_TMP_1 % 4294967296 else main____CPAchecker_TMP_1 % 4294967296 + -4294967296) * 4] % 4294967296 == unknown-#memory_int-unknown[main__array][main__array + (if main____CPAchecker_TMP_2 % 4294967296 <= 2147483647 then main____CPAchecker_TMP_2 % 4294967296 else main____CPAchecker_TMP_2 % 4294967296 + -4294967296) * 4] % 4294967296) && \valid[2] == 1) && #NULL == 0) && \valid[main__array] == 1) && unknown-#memory_int-unknown[1][0] == 48) && __VERIFIER_assert__cond == 1) && unknown-#memory_int-unknown[1][1] == 0) && __return_main == 0) && main__array == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && 45 == unknown-#length-unknown[2]) && __VERIFIER_assert__cond == __tmp_3) && __tmp_1 == 1) && __tmp_3 == (if unknown-#memory_int-unknown[main__array][(if main__index2 % 4294967296 <= 2147483647 then main__index2 % 4294967296 else main__index2 % 4294967296 + -4294967296) * 4 + main__array] % 4294967296 == unknown-#memory_int-unknown[main__array][main__array + (if main__index1 % 4294967296 <= 2147483647 then main__index1 % 4294967296 else main__index1 % 4294967296 + -4294967296) * 4] % 4294967296 then 1 else 0)) && __tmp_155_0 == main____CPAchecker_TMP_0) && (4294967295 + main__index1) % 4294967296 < main____CPAchecker_TMP_2 % 4294967296) && 2 == unknown-#length-unknown[1]) && __tmp_155_0 == 1) && \valid[3] == 1) && main____CPAchecker_TMP_2 % 4294967296 < 100000) && main__loop_entered == 1) && main__index2 % 4294967296 < main__index1 % 4294967296) && unknown-#StackHeapBarrier-unknown < main__array) && !(__VERIFIER_assert__cond == 0)) && __return_136 == 0) && \valid[1] == 1) && main____CPAchecker_TMP_1 + 1 == main__index1) && 400000 == unknown-#length-unknown[main__array]) && main__index2 + 1 == main____CPAchecker_TMP_2) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && \valid[main__array] == 1) && unknown-#memory_int-unknown[1][0] == 48) && __VERIFIER_assert__cond == 1) && unknown-#memory_int-unknown[1][1] == 0) && __return_main == 0) && main__array == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0 RESULT: Ultimate proved your program to be correct! [2021-11-23 02:06:32,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_693dc402-2b4a-4ee1-a818-758ce7cb6133/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE