./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c7b5cea41c34641368705a00e3051c009f6877551b3530b7d4fceaf386f5f58c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 08:59:44,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:59:44,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:59:44,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:59:44,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:59:44,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:59:44,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:59:44,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:59:44,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:59:44,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:59:44,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:59:44,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:59:44,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:59:44,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:59:44,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:59:44,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:59:44,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:59:44,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:59:44,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:59:44,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:59:44,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:59:44,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:59:44,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:59:44,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:59:44,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:59:44,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:59:44,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:59:44,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:59:44,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:59:44,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:59:44,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:59:44,256 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:59:44,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:59:44,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:59:44,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:59:44,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:59:44,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:59:44,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:59:44,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:59:44,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:59:44,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:59:44,262 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-12-14 08:59:44,284 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:59:44,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:59:44,284 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:59:44,285 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:59:44,285 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:59:44,285 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:59:44,286 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:59:44,286 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:59:44,286 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:59:44,286 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:59:44,286 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:59:44,287 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:59:44,287 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:59:44,287 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:59:44,287 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:59:44,287 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:59:44,288 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:59:44,288 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:59:44,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:59:44,289 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:59:44,289 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:59:44,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:59:44,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:59:44,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:59:44,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:59:44,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:59:44,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:59:44,290 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 08:59:44,290 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:59:44,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:59:44,291 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:59:44,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:59:44,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:59:44,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:59:44,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:59:44,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:59:44,292 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:59:44,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:59:44,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:59:44,293 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:59:44,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:59:44,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:59:44,293 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:59:44,293 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7b5cea41c34641368705a00e3051c009f6877551b3530b7d4fceaf386f5f58c [2022-12-14 08:59:44,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:59:44,497 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:59:44,499 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:59:44,500 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:59:44,500 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:59:44,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i [2022-12-14 08:59:47,057 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:59:47,236 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:59:47,237 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i [2022-12-14 08:59:47,246 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/data/13dff8cac/c86afa109a18466cbd143cfac6cf3cf3/FLAGbf2663f4c [2022-12-14 08:59:47,257 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/data/13dff8cac/c86afa109a18466cbd143cfac6cf3cf3 [2022-12-14 08:59:47,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:59:47,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:59:47,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:59:47,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:59:47,264 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:59:47,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:59:47" (1/1) ... [2022-12-14 08:59:47,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9f9bb28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:47, skipping insertion in model container [2022-12-14 08:59:47,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:59:47" (1/1) ... [2022-12-14 08:59:47,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:59:47,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:59:47,630 WARN L237 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_a224994c-597b-4a09-b9ba-0ff896746c57/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i[33021,33034] [2022-12-14 08:59:47,711 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 08:59:47,713 WARN L237 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_a224994c-597b-4a09-b9ba-0ff896746c57/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i[49681,49694] [2022-12-14 08:59:47,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:59:47,726 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:59:47,747 WARN L237 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_a224994c-597b-4a09-b9ba-0ff896746c57/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i[33021,33034] [2022-12-14 08:59:47,804 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 08:59:47,805 WARN L237 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_a224994c-597b-4a09-b9ba-0ff896746c57/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-1.i[49681,49694] [2022-12-14 08:59:47,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:59:47,830 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:59:47,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:47 WrapperNode [2022-12-14 08:59:47,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:59:47,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:59:47,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:59:47,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:59:47,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:47" (1/1) ... [2022-12-14 08:59:47,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:47" (1/1) ... [2022-12-14 08:59:47,921 INFO L138 Inliner]: procedures = 177, calls = 388, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1404 [2022-12-14 08:59:47,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:59:47,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:59:47,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:59:47,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:59:47,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:47" (1/1) ... [2022-12-14 08:59:47,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:47" (1/1) ... [2022-12-14 08:59:47,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:47" (1/1) ... [2022-12-14 08:59:47,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:47" (1/1) ... [2022-12-14 08:59:47,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:47" (1/1) ... [2022-12-14 08:59:47,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:47" (1/1) ... [2022-12-14 08:59:47,986 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:47" (1/1) ... [2022-12-14 08:59:47,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:47" (1/1) ... [2022-12-14 08:59:47,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:59:47,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:59:47,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:59:47,997 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:59:47,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:47" (1/1) ... [2022-12-14 08:59:48,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:59:48,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:59:48,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:59:48,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:59:48,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:59:48,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 08:59:48,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 08:59:48,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:59:48,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 08:59:48,047 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 08:59:48,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 08:59:48,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:59:48,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 08:59:48,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:59:48,048 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 08:59:48,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 08:59:48,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:59:48,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:59:48,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:59:48,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:59:48,228 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:59:48,230 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:59:49,543 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:59:49,890 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:59:49,890 INFO L300 CfgBuilder]: Removed 83 assume(true) statements. [2022-12-14 08:59:49,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:59:49 BoogieIcfgContainer [2022-12-14 08:59:49,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:59:49,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:59:49,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:59:49,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:59:49,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:59:47" (1/3) ... [2022-12-14 08:59:49,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397c1f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:59:49, skipping insertion in model container [2022-12-14 08:59:49,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:59:47" (2/3) ... [2022-12-14 08:59:49,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@397c1f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:59:49, skipping insertion in model container [2022-12-14 08:59:49,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:59:49" (3/3) ... [2022-12-14 08:59:49,902 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test5-1.i [2022-12-14 08:59:49,921 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:59:49,921 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-12-14 08:59:49,972 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:59:49,979 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5d0f2602, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:59:49,979 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-12-14 08:59:49,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 140 states have (on average 1.8357142857142856) internal successors, (257), 155 states have internal predecessors, (257), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 08:59:49,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 08:59:49,989 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:59:49,990 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 08:59:49,990 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-14 08:59:49,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:59:49,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1106695, now seen corresponding path program 1 times [2022-12-14 08:59:50,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:59:50,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248185851] [2022-12-14 08:59:50,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:59:50,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:59:50,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:59:50,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:59:50,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:59:50,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248185851] [2022-12-14 08:59:50,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248185851] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:59:50,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:59:50,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:59:50,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796157808] [2022-12-14 08:59:50,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:59:50,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:59:50,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:59:50,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:59:50,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:59:50,175 INFO L87 Difference]: Start difference. First operand has 164 states, 140 states have (on average 1.8357142857142856) internal successors, (257), 155 states have internal predecessors, (257), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:59:50,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:59:50,791 INFO L93 Difference]: Finished difference Result 325 states and 557 transitions. [2022-12-14 08:59:50,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:59:50,796 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-12-14 08:59:50,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:59:50,802 INFO L225 Difference]: With dead ends: 325 [2022-12-14 08:59:50,803 INFO L226 Difference]: Without dead ends: 161 [2022-12-14 08:59:50,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:59:50,807 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:59:50,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 175 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 08:59:50,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-12-14 08:59:50,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-12-14 08:59:50,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 140 states have (on average 1.2285714285714286) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 08:59:50,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-12-14 08:59:50,840 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 3 [2022-12-14 08:59:50,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:59:50,841 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-12-14 08:59:50,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:59:50,841 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-12-14 08:59:50,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 08:59:50,841 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:59:50,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 08:59:50,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:59:50,842 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-14 08:59:50,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:59:50,842 INFO L85 PathProgramCache]: Analyzing trace with hash 34307604, now seen corresponding path program 1 times [2022-12-14 08:59:50,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:59:50,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367667053] [2022-12-14 08:59:50,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:59:50,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:59:50,863 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:59:50,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [579252376] [2022-12-14 08:59:50,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:59:50,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:59:50,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:59:50,865 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:59:50,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:59:50,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:59:50,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:59:50,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:59:51,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:59:51,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:59:51,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:59:51,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367667053] [2022-12-14 08:59:51,014 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:59:51,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579252376] [2022-12-14 08:59:51,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579252376] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:59:51,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:59:51,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 08:59:51,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921225073] [2022-12-14 08:59:51,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:59:51,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:59:51,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:59:51,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:59:51,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:59:51,017 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:59:52,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:59:52,115 INFO L93 Difference]: Finished difference Result 369 states and 455 transitions. [2022-12-14 08:59:52,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:59:52,118 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 08:59:52,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:59:52,120 INFO L225 Difference]: With dead ends: 369 [2022-12-14 08:59:52,120 INFO L226 Difference]: Without dead ends: 312 [2022-12-14 08:59:52,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:59:52,121 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 158 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:59:52,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 343 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 08:59:52,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-12-14 08:59:52,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 213. [2022-12-14 08:59:52,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 187 states have (on average 1.2459893048128343) internal successors, (233), 204 states have internal predecessors, (233), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 08:59:52,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 265 transitions. [2022-12-14 08:59:52,135 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 265 transitions. Word has length 4 [2022-12-14 08:59:52,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:59:52,135 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 265 transitions. [2022-12-14 08:59:52,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:59:52,135 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 265 transitions. [2022-12-14 08:59:52,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-12-14 08:59:52,136 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:59:52,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:59:52,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:59:52,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:59:52,339 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-14 08:59:52,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:59:52,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1818434055, now seen corresponding path program 1 times [2022-12-14 08:59:52,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:59:52,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898395810] [2022-12-14 08:59:52,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:59:52,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:59:52,521 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:59:52,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323005525] [2022-12-14 08:59:52,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:59:52,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:59:52,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:59:52,522 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:59:52,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 08:59:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:59:53,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 3040 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:59:53,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:59:53,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:59:53,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:59:53,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:59:53,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898395810] [2022-12-14 08:59:53,392 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:59:53,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323005525] [2022-12-14 08:59:53,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323005525] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:59:53,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:59:53,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:59:53,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977403070] [2022-12-14 08:59:53,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:59:53,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:59:53,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:59:53,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:59:53,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:59:53,395 INFO L87 Difference]: Start difference. First operand 213 states and 265 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:59:55,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:59:55,354 INFO L93 Difference]: Finished difference Result 213 states and 265 transitions. [2022-12-14 08:59:55,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:59:55,359 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2022-12-14 08:59:55,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:59:55,360 INFO L225 Difference]: With dead ends: 213 [2022-12-14 08:59:55,360 INFO L226 Difference]: Without dead ends: 211 [2022-12-14 08:59:55,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:59:55,361 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 119 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-14 08:59:55,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 331 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 08:59:55,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-12-14 08:59:55,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2022-12-14 08:59:55,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 187 states have (on average 1.2352941176470589) internal successors, (231), 202 states have internal predecessors, (231), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 08:59:55,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 263 transitions. [2022-12-14 08:59:55,371 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 263 transitions. Word has length 48 [2022-12-14 08:59:55,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:59:55,371 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 263 transitions. [2022-12-14 08:59:55,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:59:55,371 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 263 transitions. [2022-12-14 08:59:55,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-12-14 08:59:55,372 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:59:55,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:59:55,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 08:59:55,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:59:55,575 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-14 08:59:55,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:59:55,577 INFO L85 PathProgramCache]: Analyzing trace with hash 536881608, now seen corresponding path program 1 times [2022-12-14 08:59:55,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:59:55,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210231361] [2022-12-14 08:59:55,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:59:55,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:59:55,746 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 08:59:55,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1710719145] [2022-12-14 08:59:55,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:59:55,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:59:55,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:59:55,748 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:59:55,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 08:59:56,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:59:56,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 3041 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 08:59:56,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:59:56,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:59:56,679 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:59:56,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:59:56,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210231361] [2022-12-14 08:59:56,679 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 08:59:56,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710719145] [2022-12-14 08:59:56,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710719145] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:59:56,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:59:56,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:59:56,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626184875] [2022-12-14 08:59:56,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:59:56,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:59:56,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:59:56,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:59:56,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:59:56,681 INFO L87 Difference]: Start difference. First operand 211 states and 263 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:59:59,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 09:00:01,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 09:00:01,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:00:01,727 INFO L93 Difference]: Finished difference Result 309 states and 375 transitions. [2022-12-14 09:00:01,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:00:01,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 49 [2022-12-14 09:00:01,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:00:01,733 INFO L225 Difference]: With dead ends: 309 [2022-12-14 09:00:01,733 INFO L226 Difference]: Without dead ends: 308 [2022-12-14 09:00:01,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:00:01,735 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 112 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:00:01,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 544 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-12-14 09:00:01,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2022-12-14 09:00:01,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 303. [2022-12-14 09:00:01,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 273 states have (on average 1.1978021978021978) internal successors, (327), 288 states have internal predecessors, (327), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2022-12-14 09:00:01,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 371 transitions. [2022-12-14 09:00:01,766 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 371 transitions. Word has length 49 [2022-12-14 09:00:01,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:00:01,766 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 371 transitions. [2022-12-14 09:00:01,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:00:01,767 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 371 transitions. [2022-12-14 09:00:01,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 09:00:01,768 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:00:01,769 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:00:01,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 09:00:01,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:00:01,971 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-14 09:00:01,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:00:01,974 INFO L85 PathProgramCache]: Analyzing trace with hash -217016573, now seen corresponding path program 1 times [2022-12-14 09:00:01,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:00:01,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626403598] [2022-12-14 09:00:01,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:01,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:00:02,171 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 09:00:02,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [120045974] [2022-12-14 09:00:02,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:02,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:00:02,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:00:02,173 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:00:02,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 09:00:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:00:03,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 3071 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 09:00:03,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:00:03,208 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:00:03,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:00:03,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:00:03,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626403598] [2022-12-14 09:00:03,208 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 09:00:03,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120045974] [2022-12-14 09:00:03,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120045974] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:00:03,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:00:03,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:00:03,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026381181] [2022-12-14 09:00:03,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:00:03,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:00:03,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:00:03,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:00:03,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:00:03,210 INFO L87 Difference]: Start difference. First operand 303 states and 371 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:00:04,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:00:04,846 INFO L93 Difference]: Finished difference Result 617 states and 769 transitions. [2022-12-14 09:00:04,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:00:04,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 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 52 [2022-12-14 09:00:04,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:00:04,851 INFO L225 Difference]: With dead ends: 617 [2022-12-14 09:00:04,851 INFO L226 Difference]: Without dead ends: 383 [2022-12-14 09:00:04,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:00:04,853 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 76 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-14 09:00:04,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 348 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-14 09:00:04,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2022-12-14 09:00:04,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 379. [2022-12-14 09:00:04,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 339 states have (on average 1.2153392330383481) internal successors, (412), 364 states have internal predecessors, (412), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2022-12-14 09:00:04,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 476 transitions. [2022-12-14 09:00:04,866 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 476 transitions. Word has length 52 [2022-12-14 09:00:04,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:00:04,866 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 476 transitions. [2022-12-14 09:00:04,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:00:04,866 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 476 transitions. [2022-12-14 09:00:04,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 09:00:04,867 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:00:04,868 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:00:04,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 09:00:05,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:00:05,070 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-14 09:00:05,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:00:05,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1425099793, now seen corresponding path program 1 times [2022-12-14 09:00:05,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:00:05,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768694957] [2022-12-14 09:00:05,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:05,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:00:05,212 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 09:00:05,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1214329091] [2022-12-14 09:00:05,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:05,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:00:05,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:00:05,213 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:00:05,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 09:00:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:00:05,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 09:00:05,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:00:06,014 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 09:00:06,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:00:06,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:00:06,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768694957] [2022-12-14 09:00:06,015 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 09:00:06,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214329091] [2022-12-14 09:00:06,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214329091] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:00:06,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:00:06,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:00:06,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004389795] [2022-12-14 09:00:06,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:00:06,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:00:06,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:00:06,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:00:06,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:00:06,018 INFO L87 Difference]: Start difference. First operand 379 states and 476 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 09:00:08,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 09:00:10,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 09:00:10,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:00:10,067 INFO L93 Difference]: Finished difference Result 730 states and 920 transitions. [2022-12-14 09:00:10,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:00:10,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 65 [2022-12-14 09:00:10,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:00:10,076 INFO L225 Difference]: With dead ends: 730 [2022-12-14 09:00:10,076 INFO L226 Difference]: Without dead ends: 377 [2022-12-14 09:00:10,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:00:10,078 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 11 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:00:10,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 331 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-12-14 09:00:10,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2022-12-14 09:00:10,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2022-12-14 09:00:10,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 337 states have (on average 1.2136498516320475) internal successors, (409), 362 states have internal predecessors, (409), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2022-12-14 09:00:10,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 473 transitions. [2022-12-14 09:00:10,098 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 473 transitions. Word has length 65 [2022-12-14 09:00:10,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:00:10,099 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 473 transitions. [2022-12-14 09:00:10,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-14 09:00:10,099 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 473 transitions. [2022-12-14 09:00:10,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-12-14 09:00:10,100 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:00:10,100 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:00:10,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 09:00:10,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-14 09:00:10,302 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-12-14 09:00:10,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:00:10,304 INFO L85 PathProgramCache]: Analyzing trace with hash -137530280, now seen corresponding path program 1 times [2022-12-14 09:00:10,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:00:10,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096387152] [2022-12-14 09:00:10,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:10,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:00:10,381 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 09:00:10,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1197818015] [2022-12-14 09:00:10,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:00:10,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:00:10,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:00:10,383 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:00:10,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a224994c-597b-4a09-b9ba-0ff896746c57/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process