./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P --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 cb52e740550b0ec41396d39fc3beea75c2dcd7385105eaeaaabca1f449d4b319 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:19:35,270 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:19:35,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:19:35,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:19:35,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:19:35,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:19:35,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:19:35,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:19:35,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:19:35,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:19:35,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:19:35,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:19:35,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:19:35,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:19:35,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:19:35,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:19:35,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:19:35,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:19:35,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:19:35,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:19:35,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:19:35,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:19:35,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:19:35,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:19:35,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:19:35,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:19:35,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:19:35,415 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:19:35,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:19:35,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:19:35,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:19:35,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:19:35,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:19:35,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:19:35,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:19:35,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:19:35,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:19:35,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:19:35,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:19:35,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:19:35,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:19:35,430 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-21 01:19:35,482 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:19:35,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:19:35,484 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:19:35,484 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:19:35,493 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:19:35,493 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:19:35,493 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:19:35,493 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:19:35,494 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:19:35,494 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:19:35,495 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:19:35,495 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:19:35,496 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:19:35,496 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:19:35,496 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:19:35,497 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:19:35,497 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:19:35,497 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:19:35,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:19:35,499 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:19:35,499 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 01:19:35,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:19:35,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:19:35,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:19:35,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:19:35,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:19:35,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:19:35,501 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 01:19:35,501 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:19:35,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:19:35,502 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:19:35,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:19:35,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:19:35,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:19:35,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:19:35,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:19:35,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:19:35,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:19:35,504 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:19:35,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:19:35,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:19:35,505 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:19:35,505 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:19:35,507 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_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb52e740550b0ec41396d39fc3beea75c2dcd7385105eaeaaabca1f449d4b319 [2021-11-21 01:19:35,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:19:35,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:19:35,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:19:35,893 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:19:35,894 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:19:35,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i [2021-11-21 01:19:35,995 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/data/1c3a7d62b/20ef6fa97a9c4dde94322fa16376b6ae/FLAG8679ad477 [2021-11-21 01:19:36,916 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:19:36,917 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i [2021-11-21 01:19:36,954 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/data/1c3a7d62b/20ef6fa97a9c4dde94322fa16376b6ae/FLAG8679ad477 [2021-11-21 01:19:36,993 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/data/1c3a7d62b/20ef6fa97a9c4dde94322fa16376b6ae [2021-11-21 01:19:36,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:19:37,000 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:19:37,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:19:37,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:19:37,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:19:37,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:19:36" (1/1) ... [2021-11-21 01:19:37,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d0a11ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:37, skipping insertion in model container [2021-11-21 01:19:37,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:19:36" (1/1) ... [2021-11-21 01:19:37,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:19:37,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:19:37,739 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_ae899658-6f01-4bb5-90d7-5324c9d84a89/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i[33021,33034] [2021-11-21 01:19:38,057 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_ae899658-6f01-4bb5-90d7-5324c9d84a89/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i[84583,84596] [2021-11-21 01:19:38,075 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:19:38,095 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:19:38,137 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_ae899658-6f01-4bb5-90d7-5324c9d84a89/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i[33021,33034] [2021-11-21 01:19:38,429 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_ae899658-6f01-4bb5-90d7-5324c9d84a89/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test9-2.i[84583,84596] [2021-11-21 01:19:38,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:19:38,489 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:19:38,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:38 WrapperNode [2021-11-21 01:19:38,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:19:38,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:19:38,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:19:38,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:19:38,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:38" (1/1) ... [2021-11-21 01:19:38,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:38" (1/1) ... [2021-11-21 01:19:38,736 INFO L137 Inliner]: procedures = 177, calls = 781, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3027 [2021-11-21 01:19:38,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:19:38,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:19:38,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:19:38,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:19:38,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:38" (1/1) ... [2021-11-21 01:19:38,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:38" (1/1) ... [2021-11-21 01:19:38,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:38" (1/1) ... [2021-11-21 01:19:38,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:38" (1/1) ... [2021-11-21 01:19:38,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:38" (1/1) ... [2021-11-21 01:19:38,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:38" (1/1) ... [2021-11-21 01:19:38,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:38" (1/1) ... [2021-11-21 01:19:38,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:19:38,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:19:38,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:19:38,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:19:38,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:38" (1/1) ... [2021-11-21 01:19:38,937 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:19:38,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:19:38,976 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:19:38,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:19:39,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:19:39,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:19:39,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:19:39,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:19:39,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:19:39,044 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:19:39,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:19:39,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:19:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:19:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:19:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 01:19:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:19:39,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:19:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:19:39,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:19:39,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:19:39,421 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:19:39,424 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:19:42,149 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:19:42,896 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:19:42,896 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-21 01:19:42,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:19:42 BoogieIcfgContainer [2021-11-21 01:19:42,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:19:42,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:19:42,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:19:42,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:19:42,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:19:36" (1/3) ... [2021-11-21 01:19:42,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e108cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:19:42, skipping insertion in model container [2021-11-21 01:19:42,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:19:38" (2/3) ... [2021-11-21 01:19:42,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e108cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:19:42, skipping insertion in model container [2021-11-21 01:19:42,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:19:42" (3/3) ... [2021-11-21 01:19:42,923 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test9-2.i [2021-11-21 01:19:42,930 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:19:42,931 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-21 01:19:43,016 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:19:43,035 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 [2021-11-21 01:19:43,035 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-21 01:19:43,115 INFO L276 IsEmpty]: Start isEmpty. Operand has 1123 states, 609 states have (on average 1.9655172413793103) internal successors, (1197), 1117 states have internal predecessors, (1197), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-21 01:19:43,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 01:19:43,120 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:19:43,120 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-21 01:19:43,121 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-21 01:19:43,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:19:43,128 INFO L85 PathProgramCache]: Analyzing trace with hash 144769903, now seen corresponding path program 1 times [2021-11-21 01:19:43,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:19:43,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395938933] [2021-11-21 01:19:43,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:43,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:19:43,275 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:19:43,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1546189234] [2021-11-21 01:19:43,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:43,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:19:43,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:19:43,279 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:19:43,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:19:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:19:43,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 01:19:43,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:19:43,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:19:43,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:19:43,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2021-11-21 01:19:43,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:19:43,776 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:19:43,777 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:19:43,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395938933] [2021-11-21 01:19:43,778 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:19:43,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546189234] [2021-11-21 01:19:43,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546189234] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:19:43,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:19:43,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:19:43,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750188413] [2021-11-21 01:19:43,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:19:43,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:19:43,792 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:19:43,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:19:43,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:19:43,842 INFO L87 Difference]: Start difference. First operand has 1123 states, 609 states have (on average 1.9655172413793103) internal successors, (1197), 1117 states have internal predecessors, (1197), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:19:47,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:19:47,333 INFO L93 Difference]: Finished difference Result 3309 states and 6518 transitions. [2021-11-21 01:19:47,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:19:47,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-21 01:19:47,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:19:47,405 INFO L225 Difference]: With dead ends: 3309 [2021-11-21 01:19:47,405 INFO L226 Difference]: Without dead ends: 2167 [2021-11-21 01:19:47,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:19:47,427 INFO L933 BasicCegarLoop]: 2605 mSDtfsCounter, 1068 mSDsluCounter, 4215 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1568 SdHoareTripleChecker+Valid, 6799 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:19:47,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1568 Valid, 6799 Invalid, 627 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-11-21 01:19:47,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2167 states. [2021-11-21 01:19:48,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2167 to 1111. [2021-11-21 01:19:48,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 598 states have (on average 1.874581939799331) internal successors, (1121), 1105 states have internal predecessors, (1121), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-21 01:19:48,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 2127 transitions. [2021-11-21 01:19:48,587 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 2127 transitions. Word has length 4 [2021-11-21 01:19:48,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:19:48,588 INFO L470 AbstractCegarLoop]: Abstraction has 1111 states and 2127 transitions. [2021-11-21 01:19:48,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:19:48,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 2127 transitions. [2021-11-21 01:19:48,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 01:19:48,590 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:19:48,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:19:48,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:19:48,810 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:19:48,811 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-21 01:19:48,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:19:48,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1404847448, now seen corresponding path program 1 times [2021-11-21 01:19:48,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:19:48,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746961296] [2021-11-21 01:19:48,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:48,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:19:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:19:48,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:19:48,931 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:19:48,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746961296] [2021-11-21 01:19:48,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746961296] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:19:48,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:19:48,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:19:48,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745076780] [2021-11-21 01:19:48,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:19:48,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:19:48,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:19:48,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:19:48,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:19:48,944 INFO L87 Difference]: Start difference. First operand 1111 states and 2127 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-11-21 01:19:51,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:19:51,936 INFO L93 Difference]: Finished difference Result 3200 states and 6229 transitions. [2021-11-21 01:19:51,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:19:51,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2021-11-21 01:19:51,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:19:51,995 INFO L225 Difference]: With dead ends: 3200 [2021-11-21 01:19:51,995 INFO L226 Difference]: Without dead ends: 2154 [2021-11-21 01:19:52,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:19:52,003 INFO L933 BasicCegarLoop]: 2598 mSDtfsCounter, 1051 mSDsluCounter, 4195 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 6778 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:19:52,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1551 Valid, 6778 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-21 01:19:52,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2154 states. [2021-11-21 01:19:52,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2154 to 1111. [2021-11-21 01:19:52,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 598 states have (on average 1.8729096989966556) internal successors, (1120), 1105 states have internal predecessors, (1120), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-21 01:19:52,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 2126 transitions. [2021-11-21 01:19:52,390 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 2126 transitions. Word has length 20 [2021-11-21 01:19:52,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:19:52,391 INFO L470 AbstractCegarLoop]: Abstraction has 1111 states and 2126 transitions. [2021-11-21 01:19:52,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-11-21 01:19:52,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 2126 transitions. [2021-11-21 01:19:52,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 01:19:52,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:19:52,393 INFO L514 BasicCegarLoop]: 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] [2021-11-21 01:19:52,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:19:52,394 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-21 01:19:52,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:19:52,396 INFO L85 PathProgramCache]: Analyzing trace with hash -980144550, now seen corresponding path program 1 times [2021-11-21 01:19:52,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:19:52,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453479205] [2021-11-21 01:19:52,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:52,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:19:52,450 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:19:52,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [514733640] [2021-11-21 01:19:52,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:52,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:19:52,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:19:52,457 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:19:52,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:19:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:19:52,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:19:52,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:19:52,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:19:52,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:19:52,971 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:19:52,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453479205] [2021-11-21 01:19:52,972 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:19:52,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514733640] [2021-11-21 01:19:52,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514733640] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:19:52,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:19:52,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:19:52,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576716710] [2021-11-21 01:19:52,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:19:52,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:19:52,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:19:52,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:19:52,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:19:52,976 INFO L87 Difference]: Start difference. First operand 1111 states and 2126 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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) [2021-11-21 01:19:54,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:19:54,354 INFO L93 Difference]: Finished difference Result 3258 states and 6292 transitions. [2021-11-21 01:19:54,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:19:54,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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 28 [2021-11-21 01:19:54,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:19:54,389 INFO L225 Difference]: With dead ends: 3258 [2021-11-21 01:19:54,390 INFO L226 Difference]: Without dead ends: 2152 [2021-11-21 01:19:54,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:19:54,398 INFO L933 BasicCegarLoop]: 2621 mSDtfsCounter, 1039 mSDsluCounter, 2102 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 4711 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:19:54,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1541 Valid, 4711 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-21 01:19:54,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2152 states. [2021-11-21 01:19:54,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2152 to 2148. [2021-11-21 01:19:54,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2148 states, 1135 states have (on average 1.905726872246696) internal successors, (2163), 2142 states have internal predecessors, (2163), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2021-11-21 01:19:54,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2148 states to 2148 states and 4169 transitions. [2021-11-21 01:19:54,824 INFO L78 Accepts]: Start accepts. Automaton has 2148 states and 4169 transitions. Word has length 28 [2021-11-21 01:19:54,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:19:54,828 INFO L470 AbstractCegarLoop]: Abstraction has 2148 states and 4169 transitions. [2021-11-21 01:19:54,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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) [2021-11-21 01:19:54,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2148 states and 4169 transitions. [2021-11-21 01:19:54,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-21 01:19:54,833 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:19:54,833 INFO L514 BasicCegarLoop]: 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] [2021-11-21 01:19:54,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:19:55,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:19:55,059 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-21 01:19:55,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:19:55,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1908377992, now seen corresponding path program 1 times [2021-11-21 01:19:55,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:19:55,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892309763] [2021-11-21 01:19:55,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:55,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:19:55,101 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:19:55,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1677339383] [2021-11-21 01:19:55,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:55,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:19:55,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:19:55,105 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:19:55,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:19:56,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:19:56,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:19:56,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:19:56,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:19:56,287 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:19:56,287 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:19:56,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892309763] [2021-11-21 01:19:56,288 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:19:56,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677339383] [2021-11-21 01:19:56,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677339383] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:19:56,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:19:56,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:19:56,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194225783] [2021-11-21 01:19:56,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:19:56,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:19:56,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:19:56,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:19:56,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:19:56,291 INFO L87 Difference]: Start difference. First operand 2148 states and 4169 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:19:58,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:19:58,644 INFO L93 Difference]: Finished difference Result 4280 states and 8324 transitions. [2021-11-21 01:19:58,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:19:58,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2021-11-21 01:19:58,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:19:58,678 INFO L225 Difference]: With dead ends: 4280 [2021-11-21 01:19:58,678 INFO L226 Difference]: Without dead ends: 2150 [2021-11-21 01:19:58,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:19:58,689 INFO L933 BasicCegarLoop]: 2106 mSDtfsCounter, 1 mSDsluCounter, 4234 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6314 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:19:58,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 6314 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-21 01:19:58,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2021-11-21 01:19:59,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 2150. [2021-11-21 01:19:59,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 1136 states have (on average 1.9058098591549295) internal successors, (2165), 2144 states have internal predecessors, (2165), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 3 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2021-11-21 01:19:59,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 4172 transitions. [2021-11-21 01:19:59,231 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 4172 transitions. Word has length 41 [2021-11-21 01:19:59,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:19:59,231 INFO L470 AbstractCegarLoop]: Abstraction has 2150 states and 4172 transitions. [2021-11-21 01:19:59,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:19:59,232 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 4172 transitions. [2021-11-21 01:19:59,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-21 01:19:59,238 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:19:59,238 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:19:59,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 01:19:59,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:19:59,461 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-21 01:19:59,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:19:59,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1893633940, now seen corresponding path program 1 times [2021-11-21 01:19:59,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:19:59,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229062349] [2021-11-21 01:19:59,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:59,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:19:59,496 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:19:59,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1975508415] [2021-11-21 01:19:59,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:59,503 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:19:59,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:19:59,505 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:19:59,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae899658-6f01-4bb5-90d7-5324c9d84a89/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:20:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:20:00,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:20:00,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:20:00,376 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:20:00,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:20:00,574 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:20:00,574 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:20:00,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229062349] [2021-11-21 01:20:00,574 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:20:00,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975508415] [2021-11-21 01:20:00,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975508415] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:20:00,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [636411983] [2021-11-21 01:20:00,600 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-21 01:20:00,600 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:20:00,605 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:20:00,612 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:20:00,613 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:20:00,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:00,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:00,739 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:20:00,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-21 01:20:00,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:20:00,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:00,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 01:20:00,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:00,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 01:20:00,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:20:00,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:20:00,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:00,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:01,033 INFO L354 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2021-11-21 01:20:01,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 38 [2021-11-21 01:20:01,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:01,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:01,108 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-21 01:20:01,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 42 [2021-11-21 01:20:01,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:20:01,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:01,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:01,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:01,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:01,221 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:20:01,222 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 [2021-11-21 01:20:01,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:01,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:01,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:01,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:01,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 59 [2021-11-21 01:20:01,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:20:01,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:20:03,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 75 [2021-11-21 01:20:03,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 74 [2021-11-21 01:20:03,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:20:03,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:20:03,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:20:03,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:03,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:20:04,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2021-11-21 01:20:04,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-21 01:20:04,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:20:04,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,414 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:20:04,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 75 treesize of output 77 [2021-11-21 01:20:04,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 115 [2021-11-21 01:20:04,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,652 INFO L354 Elim1Store]: treesize reduction 194, result has 22.4 percent of original size [2021-11-21 01:20:04,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 127 treesize of output 163 [2021-11-21 01:20:04,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:04,750 INFO L354 Elim1Store]: treesize reduction 120, result has 14.9 percent of original size [2021-11-21 01:20:04,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 145 treesize of output 156 [2021-11-21 01:20:05,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:20:05,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:20:05,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:20:05,741 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 01:20:05,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 88 [2021-11-21 01:20:05,774 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-21 01:20:05,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 91 [2021-11-21 01:20:05,816 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 01:20:05,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 94 [2021-11-21 01:20:05,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:20:05,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:20:05,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:20:06,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 01:20:06,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:20:06,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:20:06,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:20:06,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 01:20:06,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:06,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:20:17,632 WARN L227 SmtUtils]: Spent 10.60s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:20:17,633 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:20:17,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2847 treesize of output 2324 [2021-11-21 01:20:17,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:29,802 WARN L227 SmtUtils]: Spent 12.12s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:20:29,803 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:20:29,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2948 treesize of output 2666 [2021-11-21 01:20:43,338 WARN L227 SmtUtils]: Spent 13.39s on a formula simplification. DAG size of input: 252 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:20:43,339 INFO L354 Elim1Store]: treesize reduction 2662, result has 30.3 percent of original size [2021-11-21 01:20:43,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2852 treesize of output 2682 [2021-11-21 01:20:43,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:43,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:44,731 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-21 01:20:44,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 25950 treesize of output 25964 [2021-11-21 01:20:44,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:44,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:44,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:46,100 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-11-21 01:20:46,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 25949 treesize of output 25964 [2021-11-21 01:20:48,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:48,726 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-21 01:20:48,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 30 [2021-11-21 01:20:49,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:49,415 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:20:49,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 63