./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b724500cddd07446974ec59df8ac86aa980f4ff713324fa73d397377235cbe2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:23:39,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:23:39,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:23:39,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:23:39,469 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:23:39,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:23:39,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:23:39,478 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:23:39,480 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:23:39,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:23:39,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:23:39,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:23:39,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:23:39,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:23:39,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:23:39,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:23:39,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:23:39,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:23:39,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:23:39,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:23:39,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:23:39,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:23:39,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:23:39,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:23:39,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:23:39,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:23:39,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:23:39,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:23:39,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:23:39,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:23:39,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:23:39,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:23:39,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:23:39,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:23:39,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:23:39,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:23:39,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:23:39,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:23:39,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:23:39,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:23:39,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:23:39,541 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:23:39,591 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:23:39,593 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:23:39,593 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:23:39,594 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:23:39,595 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:23:39,595 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:23:39,595 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:23:39,596 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:23:39,596 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:23:39,596 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:23:39,597 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:23:39,598 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:23:39,598 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:23:39,598 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:23:39,598 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:23:39,599 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:23:39,599 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:23:39,599 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:23:39,600 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:23:39,600 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:23:39,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:23:39,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:23:39,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:23:39,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:23:39,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:23:39,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:23:39,603 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:23:39,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:23:39,603 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:23:39,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:23:39,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:23:39,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:23:39,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:23:39,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:23:39,605 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:23:39,605 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:23:39,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:23:39,606 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:23:39,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:23:39,606 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:23:39,607 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:23:39,607 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b724500cddd07446974ec59df8ac86aa980f4ff713324fa73d397377235cbe2 [2022-11-26 00:23:39,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:23:39,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:23:39,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:23:39,947 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:23:39,947 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:23:39,948 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i [2022-11-26 00:23:42,926 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:23:43,220 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:23:43,221 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i [2022-11-26 00:23:43,243 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/data/6321e7ed2/bc1eb01b9b8846d2a11fcb22dfeb4765/FLAGddccc54bd [2022-11-26 00:23:43,262 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/data/6321e7ed2/bc1eb01b9b8846d2a11fcb22dfeb4765 [2022-11-26 00:23:43,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:23:43,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:23:43,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:23:43,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:23:43,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:23:43,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:23:43" (1/1) ... [2022-11-26 00:23:43,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b60b1a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:43, skipping insertion in model container [2022-11-26 00:23:43,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:23:43" (1/1) ... [2022-11-26 00:23:43,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:23:43,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:23:43,815 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i[33021,33034] [2022-11-26 00:23:44,013 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:23:44,015 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i[49681,49694] [2022-11-26 00:23:44,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:23:44,059 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:23:44,088 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i[33021,33034] [2022-11-26 00:23:44,184 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:23:44,186 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i[49681,49694] [2022-11-26 00:23:44,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:23:44,235 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:23:44,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:44 WrapperNode [2022-11-26 00:23:44,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:23:44,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:23:44,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:23:44,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:23:44,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:44" (1/1) ... [2022-11-26 00:23:44,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:44" (1/1) ... [2022-11-26 00:23:44,416 INFO L138 Inliner]: procedures = 177, calls = 487, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1686 [2022-11-26 00:23:44,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:23:44,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:23:44,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:23:44,419 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:23:44,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:44" (1/1) ... [2022-11-26 00:23:44,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:44" (1/1) ... [2022-11-26 00:23:44,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:44" (1/1) ... [2022-11-26 00:23:44,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:44" (1/1) ... [2022-11-26 00:23:44,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:44" (1/1) ... [2022-11-26 00:23:44,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:44" (1/1) ... [2022-11-26 00:23:44,593 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:44" (1/1) ... [2022-11-26 00:23:44,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:44" (1/1) ... [2022-11-26 00:23:44,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:23:44,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:23:44,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:23:44,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:23:44,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:44" (1/1) ... [2022-11-26 00:23:44,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:23:44,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:23:44,665 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:23:44,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:23:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:23:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:23:44,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:23:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:23:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 00:23:44,754 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 00:23:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:23:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:23:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:23:44,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:23:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-26 00:23:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:23:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:23:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:23:44,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:23:44,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:23:45,031 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:23:45,033 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:23:47,171 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:23:47,752 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:23:47,752 INFO L300 CfgBuilder]: Removed 100 assume(true) statements. [2022-11-26 00:23:47,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:23:47 BoogieIcfgContainer [2022-11-26 00:23:47,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:23:47,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:23:47,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:23:47,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:23:47,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:23:43" (1/3) ... [2022-11-26 00:23:47,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7464ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:23:47, skipping insertion in model container [2022-11-26 00:23:47,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:23:44" (2/3) ... [2022-11-26 00:23:47,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7464ac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:23:47, skipping insertion in model container [2022-11-26 00:23:47,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:23:47" (3/3) ... [2022-11-26 00:23:47,765 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test5-3.i [2022-11-26 00:23:47,784 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:23:47,785 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:23:47,856 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:23:47,863 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2d86b96d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:23:47,863 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:23:47,868 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-26 00:23:47,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:23:47,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:23:47,876 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:23:47,877 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:23:47,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:23:47,883 INFO L85 PathProgramCache]: Analyzing trace with hash 274883441, now seen corresponding path program 1 times [2022-11-26 00:23:47,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:23:47,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069151142] [2022-11-26 00:23:47,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:23:47,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:23:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:23:48,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:23:48,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069151142] [2022-11-26 00:23:48,033 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-26 00:23:48,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474130121] [2022-11-26 00:23:48,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:23:48,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:23:48,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:23:48,039 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:23:48,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:23:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:23:48,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-26 00:23:48,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:23:48,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:23:48,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:23:48,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474130121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:23:48,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:23:48,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:23:48,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053783582] [2022-11-26 00:23:48,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:23:48,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:23:48,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:23:48,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:23:48,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:23:48,441 INFO L87 Difference]: Start difference. First operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:49,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:23:49,542 INFO L93 Difference]: Finished difference Result 353 states and 632 transitions. [2022-11-26 00:23:49,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:23:49,549 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-26 00:23:49,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:23:49,558 INFO L225 Difference]: With dead ends: 353 [2022-11-26 00:23:49,559 INFO L226 Difference]: Without dead ends: 150 [2022-11-26 00:23:49,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:23:49,565 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:23:49,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-26 00:23:49,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-26 00:23:49,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-26 00:23:49,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-26 00:23:49,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-26 00:23:49,641 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-26 00:23:49,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:23:49,642 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-26 00:23:49,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:49,643 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-26 00:23:49,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-26 00:23:49,648 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:23:49,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:23:49,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-26 00:23:49,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:23:49,855 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:23:49,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:23:49,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1671934868, now seen corresponding path program 1 times [2022-11-26 00:23:49,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:23:49,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83579828] [2022-11-26 00:23:49,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:23:49,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:23:49,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:23:49,918 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:23:49,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83579828] [2022-11-26 00:23:49,923 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-26 00:23:49,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461422114] [2022-11-26 00:23:49,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:23:49,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:23:49,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:23:49,932 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:23:49,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:23:50,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:23:50,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:23:50,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:23:50,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:23:50,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:23:50,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461422114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:23:50,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:23:50,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:23:50,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615660007] [2022-11-26 00:23:50,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:23:50,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:23:50,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:23:50,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:23:50,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:23:50,283 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:52,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:23:52,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:23:52,407 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-26 00:23:52,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:23:52,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-26 00:23:52,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:23:52,416 INFO L225 Difference]: With dead ends: 342 [2022-11-26 00:23:52,416 INFO L226 Difference]: Without dead ends: 290 [2022-11-26 00:23:52,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:23:52,418 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:23:52,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-26 00:23:52,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-26 00:23:52,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-26 00:23:52,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-26 00:23:52,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-26 00:23:52,438 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-26 00:23:52,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:23:52,439 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-26 00:23:52,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:23:52,439 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-26 00:23:52,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-26 00:23:52,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:23:52,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:23:52,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:23:52,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:23:52,648 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:23:52,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:23:52,649 INFO L85 PathProgramCache]: Analyzing trace with hash 700872651, now seen corresponding path program 1 times [2022-11-26 00:23:52,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:23:52,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385280362] [2022-11-26 00:23:52,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:23:52,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:23:52,887 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:23:52,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1480654975] [2022-11-26 00:23:52,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:23:52,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:23:52,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:23:52,889 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:23:52,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:23:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:23:54,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:23:54,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:23:54,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:23:54,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:23:54,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:23:54,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:23:54,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385280362] [2022-11-26 00:23:54,537 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:23:54,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480654975] [2022-11-26 00:23:54,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480654975] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:23:54,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1633032014] [2022-11-26 00:23:54,568 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-26 00:23:54,572 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:23:54,578 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:23:54,586 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:23:54,587 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:23:54,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,810 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:23:54,810 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:23:54,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 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 [2022-11-26 00:23:54,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:23:54,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,874 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:23:54,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,889 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:23:54,890 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-26 00:23:54,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,943 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:23:54,944 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:23:54,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:23:54,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:54,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-26 00:23:55,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:23:55,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:23:55,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:55,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:23:55,639 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:23:56,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:23:56,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:23:56,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:23:56,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:23:56,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:23:56,336 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:24:03,514 WARN L233 SmtUtils]: Spent 5.42s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:24:09,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1633032014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:09,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:24:09,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-26 00:24:09,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882448731] [2022-11-26 00:24:09,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:09,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:24:09,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:09,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:24:09,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-26 00:24:09,529 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:11,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:24:13,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:24:17,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:24:20,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:24:23,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:24:23,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:23,327 INFO L93 Difference]: Finished difference Result 310 states and 378 transitions. [2022-11-26 00:24:23,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:24:23,327 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2022-11-26 00:24:23,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:23,329 INFO L225 Difference]: With dead ends: 310 [2022-11-26 00:24:23,329 INFO L226 Difference]: Without dead ends: 161 [2022-11-26 00:24:23,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-26 00:24:23,331 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:23,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 602 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 311 Invalid, 3 Unknown, 0 Unchecked, 13.7s Time] [2022-11-26 00:24:23,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-26 00:24:23,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-11-26 00:24:23,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-26 00:24:23,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-26 00:24:23,353 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-26 00:24:23,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:23,354 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-26 00:24:23,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:24:23,354 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-26 00:24:23,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-26 00:24:23,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:23,357 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:23,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:24:23,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:24:23,573 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:24:23,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:23,573 INFO L85 PathProgramCache]: Analyzing trace with hash -385397690, now seen corresponding path program 1 times [2022-11-26 00:24:23,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:23,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146767383] [2022-11-26 00:24:23,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:23,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:23,776 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:24:23,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1324503395] [2022-11-26 00:24:23,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:23,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:24:23,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:24:23,778 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:24:23,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:24:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:24,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:24:24,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:24:25,078 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:24:25,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:24:25,210 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:24:25,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:25,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146767383] [2022-11-26 00:24:25,211 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:24:25,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324503395] [2022-11-26 00:24:25,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324503395] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:24:25,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1754321140] [2022-11-26 00:24:25,215 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-26 00:24:25,216 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:24:25,216 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:24:25,216 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:24:25,217 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:24:25,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,355 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:24:25,356 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:24:25,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 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 [2022-11-26 00:24:25,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,432 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:24:25,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-26 00:24:25,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:24:25,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,502 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:24:25,502 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:24:25,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,520 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:24:25,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-26 00:24:25,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,541 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:24:25,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:24:25,943 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:24:25,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:25,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:24:26,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-26 00:24:26,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-26 00:24:26,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-26 00:24:26,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:24:26,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:24:26,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:24:26,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 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 [2022-11-26 00:24:26,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 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 [2022-11-26 00:24:26,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,488 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-26 00:24:26,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-26 00:24:26,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:26,578 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:24:26,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-26 00:24:27,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:24:27,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:24:27,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:24:27,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-26 00:24:27,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897003 treesize of output 5376293 [2022-11-26 00:24:27,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9897003 treesize of output 5376293 [2022-11-26 00:24:27,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-26 00:24:27,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-26 00:24:27,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 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 [2022-11-26 00:24:27,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:24:27,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 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 [2022-11-26 00:24:27,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,870 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:24:27,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-26 00:24:27,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:24:27,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-11-26 00:24:28,313 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-26 00:24:28,433 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:24:35,400 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:24:43,108 WARN L233 SmtUtils]: Spent 5.54s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:24:55,974 WARN L233 SmtUtils]: Spent 8.73s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:25:12,118 WARN L233 SmtUtils]: Spent 9.99s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:25:24,717 WARN L233 SmtUtils]: Spent 6.40s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:25:25,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1754321140] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:25:25,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:25:25,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-26 00:25:25,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683489636] [2022-11-26 00:25:25,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:25:25,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:25:25,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:25:25,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:25:25,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-26 00:25:25,486 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:25:28,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:25:30,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:25:32,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:25:34,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:25:36,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:25:38,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:25:40,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:25:42,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:25:44,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:25:51,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:25:54,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:25:56,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:25:56,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:25:56,588 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-26 00:25:56,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:25:56,589 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-11-26 00:25:56,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:25:56,590 INFO L225 Difference]: With dead ends: 315 [2022-11-26 00:25:56,590 INFO L226 Difference]: Without dead ends: 166 [2022-11-26 00:25:56,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 57.1s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-26 00:25:56,592 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:25:56,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 611 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 10 Unknown, 0 Unchecked, 31.0s Time] [2022-11-26 00:25:56,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-26 00:25:56,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-26 00:25:56,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-26 00:25:56,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-26 00:25:56,623 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-26 00:25:56,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:25:56,624 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-26 00:25:56,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:25:56,624 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-26 00:25:56,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-26 00:25:56,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:25:56,627 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:25:56,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:25:56,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:25:56,837 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:25:56,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:25:56,838 INFO L85 PathProgramCache]: Analyzing trace with hash -102741374, now seen corresponding path program 1 times [2022-11-26 00:25:56,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:25:56,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048407792] [2022-11-26 00:25:56,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:25:56,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:25:56,986 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:25:56,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1560888937] [2022-11-26 00:25:56,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:25:56,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:25:56,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:25:56,988 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:25:57,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3033aa60-45d8-4994-9103-bcde04491184/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:25:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:25:58,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:25:58,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:25:58,334 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:25:58,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:25:58,458 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:25:58,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:25:58,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048407792] [2022-11-26 00:25:58,459 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:25:58,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560888937] [2022-11-26 00:25:58,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560888937] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:25:58,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1866889387] [2022-11-26 00:25:58,463 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-26 00:25:58,463 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:25:58,463 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:25:58,464 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:25:58,464 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:25:58,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,622 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:25:58,623 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:25:58,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 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 [2022-11-26 00:25:58,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:25:58,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,703 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:25:58,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-26 00:25:58,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,749 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:25:58,750 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:25:58,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,769 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:25:58,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-26 00:25:58,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:58,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:25:59,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:25:59,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:25:59,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:25:59,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-26 00:25:59,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-26 00:25:59,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:25:59,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:25:59,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-26 00:25:59,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 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 [2022-11-26 00:25:59,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,503 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-26 00:25:59,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-26 00:25:59,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,594 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:25:59,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-26 00:25:59,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:25:59,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:25:59,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 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 [2022-11-26 00:25:59,880 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:25:59,885 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:25:59,892 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:25:59,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-26 00:25:59,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-26 00:25:59,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-26 00:25:59,958 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:25:59,964 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:25:59,970 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:26:00,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-26 00:26:00,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-26 00:26:00,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 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 [2022-11-26 00:26:00,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:26:00,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-26 00:26:00,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-26 00:26:00,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 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 [2022-11-26 00:26:01,923 INFO L217 Elim1Store]: Index analysis took 1222 ms [2022-11-26 00:26:09,091 WARN L233 SmtUtils]: Spent 7.17s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:26:09,091 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-26 00:26:09,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 10752723 treesize of output 10752742 [2022-11-26 00:26:10,182 INFO L217 Elim1Store]: Index analysis took 887 ms [2022-11-26 00:26:10,932 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-26 00:26:10,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 10752718 treesize of output 10752722 [2022-11-26 00:29:29,196 WARN L233 SmtUtils]: Spent 3.30m on a formula simplification. DAG size of input: 198 DAG size of output: 104 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:29:29,197 INFO L321 Elim1Store]: treesize reduction 1636, result has 23.4 percent of original size [2022-11-26 00:29:29,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 7904 treesize of output 5832 [2022-11-26 00:29:29,782 INFO L217 Elim1Store]: Index analysis took 143 ms [2022-11-26 00:31:25,095 WARN L233 SmtUtils]: Spent 1.92m on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:31:25,096 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-26 00:31:25,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 7135 treesize of output 5975 [2022-11-26 00:31:31,027 INFO L217 Elim1Store]: Index analysis took 4054 ms