./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_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_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/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_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/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_7bb9bace-f978-49d0-b7d3-57466551edfc/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 961225f1af8bda006e5a86aed07a62a3e426daf2d218eb9a2332372592a548eb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:11:00,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:11:00,392 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:11:00,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:11:00,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:11:00,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:11:00,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:11:00,457 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:11:00,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:11:00,465 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:11:00,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:11:00,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:11:00,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:11:00,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:11:00,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:11:00,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:11:00,481 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:11:00,482 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:11:00,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:11:00,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:11:00,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:11:00,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:11:00,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:11:00,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:11:00,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:11:00,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:11:00,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:11:00,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:11:00,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:11:00,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:11:00,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:11:00,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:11:00,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:11:00,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:11:00,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:11:00,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:11:00,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:11:00,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:11:00,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:11:00,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:11:00,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:11:00,529 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:11:00,575 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:11:00,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:11:00,576 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:11:00,577 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:11:00,581 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:11:00,582 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:11:00,582 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:11:00,582 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:11:00,582 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:11:00,583 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:11:00,584 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:11:00,584 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:11:00,584 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:11:00,585 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:11:00,585 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:11:00,585 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:11:00,585 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:11:00,586 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:11:00,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:11:00,587 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:11:00,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:11:00,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:11:00,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:11:00,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:11:00,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:11:00,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:11:00,588 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:11:00,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:11:00,589 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:11:00,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:11:00,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:11:00,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:11:00,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:11:00,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:11:00,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:11:00,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:11:00,591 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:11:00,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:11:00,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:11:00,591 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:11:00,592 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:11:00,592 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_7bb9bace-f978-49d0-b7d3-57466551edfc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 961225f1af8bda006e5a86aed07a62a3e426daf2d218eb9a2332372592a548eb [2021-11-23 02:11:00,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:11:00,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:11:00,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:11:00,961 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:11:00,962 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:11:00,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i [2021-11-23 02:11:01,036 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/data/f8f54426b/3e46e4504bdf4383aff80bd94e388969/FLAG666479fb2 [2021-11-23 02:11:01,786 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:11:01,787 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i [2021-11-23 02:11:01,821 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/data/f8f54426b/3e46e4504bdf4383aff80bd94e388969/FLAG666479fb2 [2021-11-23 02:11:01,902 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/data/f8f54426b/3e46e4504bdf4383aff80bd94e388969 [2021-11-23 02:11:01,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:11:01,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:11:01,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:11:01,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:11:01,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:11:01,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:11:01" (1/1) ... [2021-11-23 02:11:01,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e2a30fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:01, skipping insertion in model container [2021-11-23 02:11:01,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:11:01" (1/1) ... [2021-11-23 02:11:01,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:11:02,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:11:02,517 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_7bb9bace-f978-49d0-b7d3-57466551edfc/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i[33021,33034] [2021-11-23 02:11:02,742 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_7bb9bace-f978-49d0-b7d3-57466551edfc/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i[84583,84596] [2021-11-23 02:11:02,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:11:02,769 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:11:02,818 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_7bb9bace-f978-49d0-b7d3-57466551edfc/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i[33021,33034] [2021-11-23 02:11:02,952 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test9-2.i[84583,84596] [2021-11-23 02:11:02,964 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:11:03,019 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:11:03,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:03 WrapperNode [2021-11-23 02:11:03,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:11:03,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:11:03,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:11:03,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:11:03,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:03" (1/1) ... [2021-11-23 02:11:03,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:03" (1/1) ... [2021-11-23 02:11:03,210 INFO L137 Inliner]: procedures = 177, calls = 781, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3019 [2021-11-23 02:11:03,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:11:03,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:11:03,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:11:03,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:11:03,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:03" (1/1) ... [2021-11-23 02:11:03,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:03" (1/1) ... [2021-11-23 02:11:03,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:03" (1/1) ... [2021-11-23 02:11:03,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:03" (1/1) ... [2021-11-23 02:11:03,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:03" (1/1) ... [2021-11-23 02:11:03,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:03" (1/1) ... [2021-11-23 02:11:03,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:03" (1/1) ... [2021-11-23 02:11:03,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:11:03,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:11:03,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:11:03,388 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:11:03,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:03" (1/1) ... [2021-11-23 02:11:03,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:11:03,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:11:03,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:11:03,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:11:03,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:11:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 02:11:03,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 02:11:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:11:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:11:03,536 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:11:03,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:11:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:11:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:11:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:11:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 02:11:03,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:11:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:11:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:11:03,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:11:03,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:11:03,836 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:11:03,838 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:11:06,264 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:11:06,875 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:11:06,875 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-23 02:11:06,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:11:06 BoogieIcfgContainer [2021-11-23 02:11:06,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:11:06,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:11:06,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:11:06,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:11:06,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:11:01" (1/3) ... [2021-11-23 02:11:06,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59be5550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:11:06, skipping insertion in model container [2021-11-23 02:11:06,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:03" (2/3) ... [2021-11-23 02:11:06,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59be5550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:11:06, skipping insertion in model container [2021-11-23 02:11:06,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:11:06" (3/3) ... [2021-11-23 02:11:06,898 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test9-2.i [2021-11-23 02:11:06,904 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:11:06,904 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 02:11:06,973 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:11:06,989 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 02:11:06,990 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 02:11:07,062 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 02:11:07,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 02:11:07,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:11:07,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:11:07,067 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:11:07,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:11:07,073 INFO L85 PathProgramCache]: Analyzing trace with hash -258845898, now seen corresponding path program 1 times [2021-11-23 02:11:07,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:11:07,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623704139] [2021-11-23 02:11:07,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:11:07,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:11:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:11:07,298 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 02:11:07,298 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:11:07,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623704139] [2021-11-23 02:11:07,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623704139] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:11:07,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:11:07,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:11:07,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832714727] [2021-11-23 02:11:07,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:11:07,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:11:07,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:11:07,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:11:07,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:11:07,356 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 02:11:07,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:11:07,955 INFO L93 Difference]: Finished difference Result 2225 states and 4887 transitions. [2021-11-23 02:11:07,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:11:07,965 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 02:11:07,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:11:08,007 INFO L225 Difference]: With dead ends: 2225 [2021-11-23 02:11:08,007 INFO L226 Difference]: Without dead ends: 1097 [2021-11-23 02:11:08,026 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 02:11:08,030 INFO L933 BasicCegarLoop]: 2111 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:11:08,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2111 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 02:11:08,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2021-11-23 02:11:08,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1097. [2021-11-23 02:11:08,504 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 02:11:08,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 2112 transitions. [2021-11-23 02:11:08,518 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 2112 transitions. Word has length 8 [2021-11-23 02:11:08,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:11:08,519 INFO L470 AbstractCegarLoop]: Abstraction has 1097 states and 2112 transitions. [2021-11-23 02:11:08,519 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 02:11:08,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 2112 transitions. [2021-11-23 02:11:08,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 02:11:08,521 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:11:08,521 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 02:11:08,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:11:08,522 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:11:08,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:11:08,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1120515419, now seen corresponding path program 1 times [2021-11-23 02:11:08,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:11:08,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395379140] [2021-11-23 02:11:08,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:11:08,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:11:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:11:08,591 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 02:11:08,591 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:11:08,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395379140] [2021-11-23 02:11:08,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395379140] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:11:08,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:11:08,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:11:08,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131914570] [2021-11-23 02:11:08,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:11:08,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:11:08,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:11:08,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:11:08,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:11:08,596 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 02:11:11,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:11:11,704 INFO L93 Difference]: Finished difference Result 3192 states and 6222 transitions. [2021-11-23 02:11:11,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:11:11,715 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 02:11:11,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:11:11,739 INFO L225 Difference]: With dead ends: 3192 [2021-11-23 02:11:11,739 INFO L226 Difference]: Without dead ends: 2148 [2021-11-23 02:11:11,747 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 02:11:11,749 INFO L933 BasicCegarLoop]: 2589 mSDtfsCounter, 1056 mSDsluCounter, 4177 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 6754 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:11:11,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1556 Valid, 6754 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-23 02:11:11,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2021-11-23 02:11:12,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 1099. [2021-11-23 02:11:12,494 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 02:11:12,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 2114 transitions. [2021-11-23 02:11:12,504 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 2114 transitions. Word has length 20 [2021-11-23 02:11:12,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:11:12,504 INFO L470 AbstractCegarLoop]: Abstraction has 1099 states and 2114 transitions. [2021-11-23 02:11:12,505 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 02:11:12,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 2114 transitions. [2021-11-23 02:11:12,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 02:11:12,509 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:11:12,509 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 02:11:12,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:11:12,510 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:11:12,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:11:12,511 INFO L85 PathProgramCache]: Analyzing trace with hash -440666121, now seen corresponding path program 1 times [2021-11-23 02:11:12,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:11:12,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286786851] [2021-11-23 02:11:12,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:11:12,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:11:12,558 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:11:12,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [478259924] [2021-11-23 02:11:12,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:11:12,559 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:11:12,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:11:12,569 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:11:12,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:11:12,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:11:12,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:11:12,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:11:12,970 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 02:11:12,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:11:12,971 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:11:12,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286786851] [2021-11-23 02:11:12,971 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:11:12,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478259924] [2021-11-23 02:11:12,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478259924] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:11:12,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:11:12,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:11:12,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583692594] [2021-11-23 02:11:12,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:11:12,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:11:12,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:11:12,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:11:12,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:11:12,980 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 02:11:14,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:11:14,124 INFO L93 Difference]: Finished difference Result 3230 states and 6264 transitions. [2021-11-23 02:11:14,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:11:14,133 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 02:11:14,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:11:14,155 INFO L225 Difference]: With dead ends: 3230 [2021-11-23 02:11:14,155 INFO L226 Difference]: Without dead ends: 2134 [2021-11-23 02:11:14,163 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 02:11:14,165 INFO L933 BasicCegarLoop]: 2612 mSDtfsCounter, 1033 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:11:14,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1535 Valid, 4693 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-23 02:11:14,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2134 states. [2021-11-23 02:11:14,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2134 to 2132. [2021-11-23 02:11:14,581 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 02:11:14,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 4150 transitions. [2021-11-23 02:11:14,598 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 4150 transitions. Word has length 44 [2021-11-23 02:11:14,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:11:14,598 INFO L470 AbstractCegarLoop]: Abstraction has 2132 states and 4150 transitions. [2021-11-23 02:11:14,599 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 02:11:14,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 4150 transitions. [2021-11-23 02:11:14,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 02:11:14,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:11:14,602 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 02:11:14,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:11:14,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:11:14,817 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:11:14,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:11:14,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1581662633, now seen corresponding path program 1 times [2021-11-23 02:11:14,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:11:14,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812831991] [2021-11-23 02:11:14,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:11:14,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:11:14,838 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:11:14,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1668152300] [2021-11-23 02:11:14,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:11:14,839 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:11:14,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:11:14,840 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:11:14,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:11:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:11:15,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:11:15,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:11:15,244 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 02:11:15,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:11:15,245 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:11:15,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812831991] [2021-11-23 02:11:15,245 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:11:15,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668152300] [2021-11-23 02:11:15,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668152300] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:11:15,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:11:15,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:11:15,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411608130] [2021-11-23 02:11:15,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:11:15,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:11:15,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:11:15,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:11:15,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:11:15,253 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 02:11:17,510 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:11:18,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:11:18,959 INFO L93 Difference]: Finished difference Result 3228 states and 6261 transitions. [2021-11-23 02:11:18,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:11:18,960 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 02:11:18,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:11:18,971 INFO L225 Difference]: With dead ends: 3228 [2021-11-23 02:11:18,971 INFO L226 Difference]: Without dead ends: 1112 [2021-11-23 02:11:18,984 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 02:11:18,985 INFO L933 BasicCegarLoop]: 2090 mSDtfsCounter, 2143 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1003 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2143 SdHoareTripleChecker+Valid, 3126 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1003 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:11:18,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2143 Valid, 3126 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1003 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-11-23 02:11:18,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2021-11-23 02:11:19,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1112. [2021-11-23 02:11:19,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 605 states have (on average 1.8512396694214877) internal successors, (1120), 1106 states have internal predecessors, (1120), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-23 02:11:19,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 2126 transitions. [2021-11-23 02:11:19,185 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 2126 transitions. Word has length 57 [2021-11-23 02:11:19,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:11:19,186 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 2126 transitions. [2021-11-23 02:11:19,186 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 02:11:19,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 2126 transitions. [2021-11-23 02:11:19,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 02:11:19,188 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:11:19,188 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 02:11:19,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:11:19,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:11:19,416 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:11:19,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:11:19,417 INFO L85 PathProgramCache]: Analyzing trace with hash -425682233, now seen corresponding path program 1 times [2021-11-23 02:11:19,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:11:19,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183462841] [2021-11-23 02:11:19,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:11:19,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:11:19,449 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:11:19,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [882845780] [2021-11-23 02:11:19,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:11:19,449 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:11:19,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:11:19,455 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:11:19,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:11:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:11:20,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 02:11:20,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:11:20,433 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 02:11:20,434 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:11:20,434 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:11:20,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183462841] [2021-11-23 02:11:20,434 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:11:20,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882845780] [2021-11-23 02:11:20,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882845780] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:11:20,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:11:20,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:11:20,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388407924] [2021-11-23 02:11:20,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:11:20,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:11:20,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:11:20,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:11:20,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:11:20,437 INFO L87 Difference]: Start difference. First operand 1112 states and 2126 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 02:11:22,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:11:22,388 INFO L93 Difference]: Finished difference Result 2207 states and 4236 transitions. [2021-11-23 02:11:22,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:11:22,405 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 02:11:22,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:11:22,417 INFO L225 Difference]: With dead ends: 2207 [2021-11-23 02:11:22,418 INFO L226 Difference]: Without dead ends: 1114 [2021-11-23 02:11:22,426 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 02:11:22,427 INFO L933 BasicCegarLoop]: 2096 mSDtfsCounter, 1 mSDsluCounter, 4212 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6284 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:11:22,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 6284 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-23 02:11:22,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2021-11-23 02:11:22,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1114. [2021-11-23 02:11:22,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1114 states, 606 states have (on average 1.8514851485148516) internal successors, (1122), 1108 states have internal predecessors, (1122), 503 states have call successors, (503), 2 states have call predecessors, (503), 3 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2021-11-23 02:11:22,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 2129 transitions. [2021-11-23 02:11:22,646 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 2129 transitions. Word has length 64 [2021-11-23 02:11:22,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:11:22,647 INFO L470 AbstractCegarLoop]: Abstraction has 1114 states and 2129 transitions. [2021-11-23 02:11:22,647 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 02:11:22,648 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 2129 transitions. [2021-11-23 02:11:22,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 02:11:22,649 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:11:22,649 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 02:11:22,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:11:22,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:11:22,876 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:11:22,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:11:22,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1544494779, now seen corresponding path program 1 times [2021-11-23 02:11:22,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:11:22,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828372068] [2021-11-23 02:11:22,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:11:22,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:11:22,904 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:11:22,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [422775005] [2021-11-23 02:11:22,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:11:22,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:11:22,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:11:22,915 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:11:22,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb9bace-f978-49d0-b7d3-57466551edfc/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:11:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:11:23,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 02:11:23,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:11:24,021 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 02:11:24,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:11:24,247 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 02:11:24,247 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:11:24,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828372068] [2021-11-23 02:11:24,247 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:11:24,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422775005] [2021-11-23 02:11:24,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422775005] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:11:24,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [868789492] [2021-11-23 02:11:24,271 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-23 02:11:24,271 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:11:24,278 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:11:24,283 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:11:24,284 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:11:24,481 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 02:11:24,489 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 02:11:24,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:24,513 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 02:11:24,516 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 02:11:24,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:24,530 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 02:11:24,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:24,559 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:11:24,560 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 02:11:24,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:24,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:24,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:24,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:24,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:24,636 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 02:11:24,637 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 02:11:24,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:24,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:24,689 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-23 02:11:24,690 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 02:11:24,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:24,736 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 02:11:24,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:24,754 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 02:11:24,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:24,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:24,819 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 02:11:24,819 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 02:11:25,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,172 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 02:11:25,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,193 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 02:11:25,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,229 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 02:11:25,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,253 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 02:11:25,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,312 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 02:11:25,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,339 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 02:11:25,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,362 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 02:11:25,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,379 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 02:11:25,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,433 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 02:11:25,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,466 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 02:11:25,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,577 INFO L354 Elim1Store]: treesize reduction 170, result has 24.8 percent of original size [2021-11-23 02:11:25,578 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 02:11:25,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,642 INFO L354 Elim1Store]: treesize reduction 104, result has 16.8 percent of original size [2021-11-23 02:11:25,642 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 02:11:25,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,678 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 02:11:25,776 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 02:11:25,780 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 02:11:25,784 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 02:11:25,834 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-23 02:11:25,835 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 02:11:25,862 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-23 02:11:25,863 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 02:11:25,888 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-23 02:11:25,888 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 02:11:25,927 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 02:11:25,932 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 02:11:25,938 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 02:11:25,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:25,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,002 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 02:11:26,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,025 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 02:11:26,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,051 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 02:11:26,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,178 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 02:11:26,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,221 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 02:11:26,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:26,244 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 02:11:33,678 WARN L227 SmtUtils]: Spent 7.32s 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 02:11:33,679 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-23 02:11:33,680 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 02:11:33,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:46,924 WARN L227 SmtUtils]: Spent 13.19s 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 02:11:46,925 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-23 02:11:46,926 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 02:11:58,970 WARN L227 SmtUtils]: Spent 11.92s 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 02:11:58,972 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-23 02:11:58,974 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 02:11:59,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:11:59,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:12:01,085 INFO L354 Elim1Store]: treesize reduction 156, result has 23.2 percent of original size [2021-11-23 02:12:01,087 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 02:12:01,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:12:01,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:12:02,250 INFO L354 Elim1Store]: treesize reduction 102, result has 20.3 percent of original size [2021-11-23 02:12:02,251 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 02:12:03,073 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:12:03,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:12:03,286 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-23 02:12:03,287 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 02:12:03,418 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:12:03,451 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:12:03,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:12:03,866 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:12:03,867 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