./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d993ff45e37665d9abd93530677e1201b0648bf8ee13fa84b0c68926f580d988 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:59:17,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:59:17,372 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:59:17,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:59:17,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:59:17,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:59:17,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:59:17,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:59:17,456 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:59:17,464 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:59:17,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:59:17,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:59:17,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:59:17,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:59:17,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:59:17,480 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:59:17,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:59:17,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:59:17,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:59:17,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:59:17,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:59:17,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:59:17,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:59:17,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:59:17,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:59:17,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:59:17,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:59:17,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:59:17,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:59:17,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:59:17,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:59:17,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:59:17,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:59:17,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:59:17,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:59:17,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:59:17,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:59:17,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:59:17,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:59:17,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:59:17,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:59:17,538 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:59:17,592 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:59:17,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:59:17,593 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:59:17,593 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:59:17,595 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:59:17,603 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:59:17,603 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:59:17,604 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:59:17,604 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:59:17,604 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:59:17,606 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:59:17,606 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:59:17,606 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:59:17,607 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:59:17,607 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:59:17,607 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:59:17,607 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:59:17,608 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:59:17,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:59:17,609 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:59:17,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:59:17,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:59:17,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:59:17,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:59:17,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:59:17,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:59:17,611 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:59:17,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:59:17,612 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:59:17,612 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:59:17,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:59:17,613 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:59:17,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:59:17,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:59:17,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:59:17,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:59:17,614 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:59:17,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:59:17,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:59:17,615 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:59:17,615 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:59:17,615 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d993ff45e37665d9abd93530677e1201b0648bf8ee13fa84b0c68926f580d988 [2021-11-23 02:59:18,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:59:18,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:59:18,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:59:18,058 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:59:18,059 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:59:18,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i [2021-11-23 02:59:18,144 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/data/2610820f5/89b8b4d3dbf54a378e5a094577ae9506/FLAG86db99410 [2021-11-23 02:59:18,995 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:59:18,996 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i [2021-11-23 02:59:19,040 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/data/2610820f5/89b8b4d3dbf54a378e5a094577ae9506/FLAG86db99410 [2021-11-23 02:59:19,509 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/data/2610820f5/89b8b4d3dbf54a378e5a094577ae9506 [2021-11-23 02:59:19,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:59:19,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:59:19,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:59:19,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:59:19,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:59:19,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:59:19" (1/1) ... [2021-11-23 02:59:19,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23036dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:19, skipping insertion in model container [2021-11-23 02:59:19,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:59:19" (1/1) ... [2021-11-23 02:59:19,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:59:19,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:59:20,387 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i[33021,33034] [2021-11-23 02:59:20,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i[84583,84596] [2021-11-23 02:59:20,830 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:59:20,848 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:59:20,914 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i[33021,33034] [2021-11-23 02:59:21,114 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i[84583,84596] [2021-11-23 02:59:21,123 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:59:21,181 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:59:21,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:21 WrapperNode [2021-11-23 02:59:21,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:59:21,183 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:59:21,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:59:21,184 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:59:21,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:21" (1/1) ... [2021-11-23 02:59:21,302 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:21" (1/1) ... [2021-11-23 02:59:21,478 INFO L137 Inliner]: procedures = 177, calls = 781, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3019 [2021-11-23 02:59:21,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:59:21,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:59:21,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:59:21,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:59:21,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:21" (1/1) ... [2021-11-23 02:59:21,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:21" (1/1) ... [2021-11-23 02:59:21,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:21" (1/1) ... [2021-11-23 02:59:21,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:21" (1/1) ... [2021-11-23 02:59:21,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:21" (1/1) ... [2021-11-23 02:59:21,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:21" (1/1) ... [2021-11-23 02:59:21,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:21" (1/1) ... [2021-11-23 02:59:21,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:59:21,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:59:21,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:59:21,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:59:21,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:21" (1/1) ... [2021-11-23 02:59:21,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:59:21,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:59:21,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:59:21,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:59:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:59:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 02:59:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 02:59:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:59:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:59:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:59:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:59:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:59:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:59:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:59:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 02:59:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:59:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:59:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:59:21,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:59:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:59:22,186 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:59:22,188 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:59:25,314 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:59:26,002 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:59:26,002 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-23 02:59:26,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:59:26 BoogieIcfgContainer [2021-11-23 02:59:26,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:59:26,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:59:26,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:59:26,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:59:26,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:59:19" (1/3) ... [2021-11-23 02:59:26,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@320d356f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:59:26, skipping insertion in model container [2021-11-23 02:59:26,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:59:21" (2/3) ... [2021-11-23 02:59:26,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@320d356f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:59:26, skipping insertion in model container [2021-11-23 02:59:26,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:59:26" (3/3) ... [2021-11-23 02:59:26,021 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test9-2.i [2021-11-23 02:59:26,028 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:59:26,028 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 02:59:26,105 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:59:26,113 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:59:26,114 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 02:59:26,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 1113 states, 605 states have (on average 1.9636363636363636) internal successors, (1188), 1107 states have internal predecessors, (1188), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-23 02:59:26,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 02:59:26,192 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:59:26,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:59:26,194 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:59:26,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:59:26,205 INFO L85 PathProgramCache]: Analyzing trace with hash -258845898, now seen corresponding path program 1 times [2021-11-23 02:59:26,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:59:26,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799807540] [2021-11-23 02:59:26,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:59:26,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:59:26,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:59:26,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:59:26,403 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:59:26,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799807540] [2021-11-23 02:59:26,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799807540] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:59:26,405 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:59:26,405 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:59:26,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288368360] [2021-11-23 02:59:26,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:59:26,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:59:26,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:59:26,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:59:26,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:59:26,457 INFO L87 Difference]: Start difference. First operand has 1113 states, 605 states have (on average 1.9636363636363636) internal successors, (1188), 1107 states have internal predecessors, (1188), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:59:27,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:59:27,337 INFO L93 Difference]: Finished difference Result 2225 states and 4887 transitions. [2021-11-23 02:59:27,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:59:27,353 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-23 02:59:27,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:59:27,405 INFO L225 Difference]: With dead ends: 2225 [2021-11-23 02:59:27,405 INFO L226 Difference]: Without dead ends: 1097 [2021-11-23 02:59:27,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:59:27,428 INFO L933 BasicCegarLoop]: 2111 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2111 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:59:27,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2111 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 02:59:27,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2021-11-23 02:59:27,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1097. [2021-11-23 02:59:28,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1097 states, 590 states have (on average 1.8745762711864407) internal successors, (1106), 1091 states have internal predecessors, (1106), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-23 02:59:28,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 2112 transitions. [2021-11-23 02:59:28,019 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 2112 transitions. Word has length 8 [2021-11-23 02:59:28,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:59:28,020 INFO L470 AbstractCegarLoop]: Abstraction has 1097 states and 2112 transitions. [2021-11-23 02:59:28,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:59:28,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 2112 transitions. [2021-11-23 02:59:28,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 02:59:28,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:59:28,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:59:28,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:59:28,024 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:59:28,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:59:28,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1120515419, now seen corresponding path program 1 times [2021-11-23 02:59:28,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:59:28,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841334984] [2021-11-23 02:59:28,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:59:28,027 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:59:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:59:28,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:59:28,110 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:59:28,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841334984] [2021-11-23 02:59:28,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841334984] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:59:28,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:59:28,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:59:28,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750209507] [2021-11-23 02:59:28,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:59:28,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:59:28,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:59:28,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:59:28,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:59:28,115 INFO L87 Difference]: Start difference. First operand 1097 states and 2112 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:59:31,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:59:31,811 INFO L93 Difference]: Finished difference Result 3192 states and 6222 transitions. [2021-11-23 02:59:31,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:59:31,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-23 02:59:31,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:59:31,854 INFO L225 Difference]: With dead ends: 3192 [2021-11-23 02:59:31,855 INFO L226 Difference]: Without dead ends: 2148 [2021-11-23 02:59:31,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:59:31,869 INFO L933 BasicCegarLoop]: 2589 mSDtfsCounter, 1056 mSDsluCounter, 4177 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 6754 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:59:31,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1556 Valid, 6754 Invalid, 582 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-23 02:59:31,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2021-11-23 02:59:32,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 1099. [2021-11-23 02:59:32,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 592 states have (on average 1.8716216216216217) internal successors, (1108), 1093 states have internal predecessors, (1108), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-23 02:59:32,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 2114 transitions. [2021-11-23 02:59:32,518 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 2114 transitions. Word has length 20 [2021-11-23 02:59:32,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:59:32,519 INFO L470 AbstractCegarLoop]: Abstraction has 1099 states and 2114 transitions. [2021-11-23 02:59:32,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:59:32,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 2114 transitions. [2021-11-23 02:59:32,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 02:59:32,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:59:32,538 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 02:59:32,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:59:32,539 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:59:32,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:59:32,540 INFO L85 PathProgramCache]: Analyzing trace with hash -440666121, now seen corresponding path program 1 times [2021-11-23 02:59:32,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:59:32,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706894832] [2021-11-23 02:59:32,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:59:32,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:59:32,590 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:59:32,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1419358965] [2021-11-23 02:59:32,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:59:32,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:59:32,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:59:32,619 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:59:32,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:59:32,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:59:32,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:59:32,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:59:33,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:59:33,127 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:59:33,128 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:59:33,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706894832] [2021-11-23 02:59:33,128 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:59:33,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1419358965] [2021-11-23 02:59:33,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1419358965] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:59:33,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:59:33,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:59:33,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411616810] [2021-11-23 02:59:33,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:59:33,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:59:33,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:59:33,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:59:33,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:59:33,140 INFO L87 Difference]: Start difference. First operand 1099 states and 2114 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:59:34,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:59:34,563 INFO L93 Difference]: Finished difference Result 3230 states and 6264 transitions. [2021-11-23 02:59:34,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:59:34,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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 44 [2021-11-23 02:59:34,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:59:34,601 INFO L225 Difference]: With dead ends: 3230 [2021-11-23 02:59:34,602 INFO L226 Difference]: Without dead ends: 2134 [2021-11-23 02:59:34,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:59:34,613 INFO L933 BasicCegarLoop]: 2612 mSDtfsCounter, 1033 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 4693 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:59:34,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1535 Valid, 4693 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-23 02:59:34,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2134 states. [2021-11-23 02:59:35,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2134 to 2132. [2021-11-23 02:59:35,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2132 states, 1125 states have (on average 1.9057777777777778) internal successors, (2144), 2126 states have internal predecessors, (2144), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2021-11-23 02:59:35,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 4150 transitions. [2021-11-23 02:59:35,187 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 4150 transitions. Word has length 44 [2021-11-23 02:59:35,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:59:35,188 INFO L470 AbstractCegarLoop]: Abstraction has 2132 states and 4150 transitions. [2021-11-23 02:59:35,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:59:35,189 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 4150 transitions. [2021-11-23 02:59:35,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 02:59:35,202 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:59:35,202 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:59:35,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:59:35,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:59:35,424 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:59:35,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:59:35,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1581662633, now seen corresponding path program 1 times [2021-11-23 02:59:35,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:59:35,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138086647] [2021-11-23 02:59:35,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:59:35,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:59:35,465 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:59:35,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [726359705] [2021-11-23 02:59:35,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:59:35,466 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:59:35,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:59:35,468 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:59:35,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:59:35,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:59:35,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:59:35,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:59:35,978 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:59:35,979 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:59:35,979 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:59:35,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138086647] [2021-11-23 02:59:35,980 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:59:35,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726359705] [2021-11-23 02:59:35,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726359705] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:59:35,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:59:35,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:59:35,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40485501] [2021-11-23 02:59:35,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:59:35,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:59:35,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:59:35,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:59:35,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:59:35,990 INFO L87 Difference]: Start difference. First operand 2132 states and 4150 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:59:38,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:59:40,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:59:40,892 INFO L93 Difference]: Finished difference Result 7400 states and 14461 transitions. [2021-11-23 02:59:40,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:59:40,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-11-23 02:59:40,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:59:40,961 INFO L225 Difference]: With dead ends: 7400 [2021-11-23 02:59:40,961 INFO L226 Difference]: Without dead ends: 5284 [2021-11-23 02:59:40,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:59:40,979 INFO L933 BasicCegarLoop]: 3093 mSDtfsCounter, 3215 mSDsluCounter, 5715 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1003 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3716 SdHoareTripleChecker+Valid, 8787 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1003 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:59:40,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3716 Valid, 8787 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1003 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2021-11-23 02:59:40,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5284 states. [2021-11-23 02:59:42,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5284 to 3205. [2021-11-23 02:59:42,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 1697 states have (on average 1.9021803182086034) internal successors, (3228), 3198 states have internal predecessors, (3228), 1504 states have call successors, (1504), 2 states have call predecessors, (1504), 2 states have return successors, (1504), 7 states have call predecessors, (1504), 1504 states have call successors, (1504) [2021-11-23 02:59:42,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 6236 transitions. [2021-11-23 02:59:42,327 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 6236 transitions. Word has length 57 [2021-11-23 02:59:42,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:59:42,328 INFO L470 AbstractCegarLoop]: Abstraction has 3205 states and 6236 transitions. [2021-11-23 02:59:42,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:59:42,329 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 6236 transitions. [2021-11-23 02:59:42,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 02:59:42,330 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:59:42,331 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:59:42,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:59:42,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:59:42,558 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:59:42,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:59:42,559 INFO L85 PathProgramCache]: Analyzing trace with hash -425682233, now seen corresponding path program 1 times [2021-11-23 02:59:42,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:59:42,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917775906] [2021-11-23 02:59:42,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:59:42,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:59:42,605 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:59:42,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1681966858] [2021-11-23 02:59:42,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:59:42,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:59:42,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:59:42,612 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:59:42,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:59:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:59:43,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 02:59:43,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:59:43,651 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:59:43,651 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:59:43,651 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:59:43,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917775906] [2021-11-23 02:59:43,652 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:59:43,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681966858] [2021-11-23 02:59:43,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681966858] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:59:43,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:59:43,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:59:43,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570573302] [2021-11-23 02:59:43,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:59:43,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:59:43,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:59:43,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:59:43,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:59:43,655 INFO L87 Difference]: Start difference. First operand 3205 states and 6236 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:59:45,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:59:45,577 INFO L93 Difference]: Finished difference Result 6396 states and 12461 transitions. [2021-11-23 02:59:45,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:59:45,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-11-23 02:59:45,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:59:45,632 INFO L225 Difference]: With dead ends: 6396 [2021-11-23 02:59:45,632 INFO L226 Difference]: Without dead ends: 3207 [2021-11-23 02:59:45,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:59:45,659 INFO L933 BasicCegarLoop]: 2097 mSDtfsCounter, 1 mSDsluCounter, 4214 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6287 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:59:45,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 6287 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-23 02:59:45,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3207 states. [2021-11-23 02:59:46,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3207 to 3207. [2021-11-23 02:59:46,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3207 states, 1698 states have (on average 1.9022379269729093) internal successors, (3230), 3200 states have internal predecessors, (3230), 1504 states have call successors, (1504), 2 states have call predecessors, (1504), 3 states have return successors, (1506), 7 states have call predecessors, (1506), 1504 states have call successors, (1506) [2021-11-23 02:59:46,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 6240 transitions. [2021-11-23 02:59:46,585 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 6240 transitions. Word has length 64 [2021-11-23 02:59:46,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:59:46,586 INFO L470 AbstractCegarLoop]: Abstraction has 3207 states and 6240 transitions. [2021-11-23 02:59:46,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:59:46,587 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 6240 transitions. [2021-11-23 02:59:46,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 02:59:46,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:59:46,603 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:59:46,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:59:46,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:59:46,826 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:59:46,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:59:46,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1544494779, now seen corresponding path program 1 times [2021-11-23 02:59:46,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:59:46,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141632509] [2021-11-23 02:59:46,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:59:46,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:59:46,869 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:59:46,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1954143866] [2021-11-23 02:59:46,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:59:46,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:59:46,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:59:46,874 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:59:46,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67adf9e6-143e-421d-b722-9a272b1a0061/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:59:47,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:59:47,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 02:59:47,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:59:48,030 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:59:48,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:59:48,327 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:59:48,327 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:59:48,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141632509] [2021-11-23 02:59:48,328 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:59:48,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954143866] [2021-11-23 02:59:48,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954143866] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:59:48,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [62714918] [2021-11-23 02:59:48,363 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-23 02:59:48,364 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:59:48,371 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:59:48,379 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:59:48,380 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:59:48,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 02:59:48,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 02:59:48,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:48,613 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 02:59:48,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2021-11-23 02:59:48,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:48,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-23 02:59:48,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:48,656 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:59:48,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-23 02:59:48,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:48,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:48,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:48,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:48,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:48,740 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 02:59:48,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 52 treesize of output 53 [2021-11-23 02:59:48,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:48,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:48,801 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-23 02:59:48,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:59:48,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:48,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:59:48,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:48,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:59:48,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:48,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:48,913 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 02:59:48,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-23 02:59:49,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:59:49,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:59:49,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 77 [2021-11-23 02:59:49,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 76 [2021-11-23 02:59:49,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 98 [2021-11-23 02:59:49,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-23 02:59:49,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:59:49,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:59:49,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-23 02:59:49,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 110 treesize of output 115 [2021-11-23 02:59:49,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,790 INFO L354 Elim1Store]: treesize reduction 170, result has 24.8 percent of original size [2021-11-23 02:59:49,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 127 treesize of output 163 [2021-11-23 02:59:49,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,869 INFO L354 Elim1Store]: treesize reduction 104, result has 16.8 percent of original size [2021-11-23 02:59:49,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 145 treesize of output 156 [2021-11-23 02:59:49,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:49,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:59:50,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:59:50,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:59:50,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:59:50,172 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-23 02:59:50,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 88 [2021-11-23 02:59:50,205 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-23 02:59:50,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 91 [2021-11-23 02:59:50,237 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-23 02:59:50,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 94 [2021-11-23 02:59:50,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-23 02:59:50,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 02:59:50,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 02:59:50,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-23 02:59:50,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:59:50,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:59:50,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-23 02:59:50,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:59:50,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:59:50,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-23 02:59:59,712 WARN L227 SmtUtils]: Spent 8.93s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:59:59,713 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-23 02:59:59,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2863 treesize of output 2340 [2021-11-23 02:59:59,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:00:14,790 WARN L227 SmtUtils]: Spent 15.02s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:00:14,791 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-23 03:00:14,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2964 treesize of output 2682 [2021-11-23 03:00:26,507 WARN L227 SmtUtils]: Spent 11.56s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:00:26,508 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-23 03:00:26,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2932 treesize of output 2702 [2021-11-23 03:00:27,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:00:27,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:00:28,970 INFO L354 Elim1Store]: treesize reduction 156, result has 23.2 percent of original size [2021-11-23 03:00:28,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 25970 treesize of output 26001 [2021-11-23 03:00:29,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:00:29,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:00:30,268 INFO L354 Elim1Store]: treesize reduction 102, result has 20.3 percent of original size [2021-11-23 03:00:30,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 25980 treesize of output 25994 [2021-11-23 03:00:31,155 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:00:31,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:00:31,461 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-23 03:00:31,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 38 treesize of output 20 [2021-11-23 03:00:31,601 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:00:31,638 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:00:31,874 INFO L244 Elim1Store]: Index analysis took 114 ms [2021-11-23 03:00:31,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:00:32,102 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:00:32,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61