./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P --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 b879d991ca85089954916015c9838d386a5c85365dad0e09e537aeb772eaaaf8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:26:10,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:26:10,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:26:10,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:26:10,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:26:10,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:26:10,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:26:10,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:26:10,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:26:10,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:26:10,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:26:10,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:26:10,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:26:10,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:26:10,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:26:10,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:26:10,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:26:10,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:26:10,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:26:10,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:26:10,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:26:10,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:26:10,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:26:10,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:26:10,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:26:10,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:26:10,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:26:10,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:26:10,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:26:10,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:26:10,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:26:10,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:26:10,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:26:10,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:26:10,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:26:10,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:26:10,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:26:10,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:26:10,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:26:10,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:26:10,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:26:10,498 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:26:10,539 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:26:10,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:26:10,540 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:26:10,540 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:26:10,547 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:26:10,548 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:26:10,548 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:26:10,549 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:26:10,549 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:26:10,549 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:26:10,550 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:26:10,551 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:26:10,551 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:26:10,551 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:26:10,551 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:26:10,552 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:26:10,552 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:26:10,552 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:26:10,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:26:10,553 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:26:10,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:26:10,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:26:10,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:26:10,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:26:10,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:26:10,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:26:10,556 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:26:10,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:26:10,557 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:26:10,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:26:10,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:26:10,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:26:10,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:26:10,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:26:10,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:26:10,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:26:10,559 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:26:10,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:26:10,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:26:10,560 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:26:10,560 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:26:10,560 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_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b879d991ca85089954916015c9838d386a5c85365dad0e09e537aeb772eaaaf8 [2021-11-21 01:26:10,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:26:10,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:26:10,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:26:10,859 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:26:10,859 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:26:10,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i [2021-11-21 01:26:10,951 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/data/77f5d77b4/e8162bb77a95481787f3359249421011/FLAGce75df5e4 [2021-11-21 01:26:11,583 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:26:11,583 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i [2021-11-21 01:26:11,600 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/data/77f5d77b4/e8162bb77a95481787f3359249421011/FLAGce75df5e4 [2021-11-21 01:26:11,798 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/data/77f5d77b4/e8162bb77a95481787f3359249421011 [2021-11-21 01:26:11,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:26:11,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:26:11,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:26:11,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:26:11,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:26:11,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:26:11" (1/1) ... [2021-11-21 01:26:11,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22cde4b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:11, skipping insertion in model container [2021-11-21 01:26:11,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:26:11" (1/1) ... [2021-11-21 01:26:11,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:26:11,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:26:12,396 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_eab64fbb-9eb7-4466-a35a-9576a07d8bab/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i[37019,37032] [2021-11-21 01:26:12,552 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_eab64fbb-9eb7-4466-a35a-9576a07d8bab/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i[47352,47365] [2021-11-21 01:26:12,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:26:12,595 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:26:12,644 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_eab64fbb-9eb7-4466-a35a-9576a07d8bab/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i[37019,37032] [2021-11-21 01:26:12,701 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_eab64fbb-9eb7-4466-a35a-9576a07d8bab/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-2.i[47352,47365] [2021-11-21 01:26:12,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:26:12,769 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:26:12,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:12 WrapperNode [2021-11-21 01:26:12,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:26:12,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:26:12,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:26:12,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:26:12,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:12" (1/1) ... [2021-11-21 01:26:12,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:12" (1/1) ... [2021-11-21 01:26:12,924 INFO L137 Inliner]: procedures = 208, calls = 286, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1039 [2021-11-21 01:26:12,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:26:12,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:26:12,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:26:12,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:26:12,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:12" (1/1) ... [2021-11-21 01:26:12,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:12" (1/1) ... [2021-11-21 01:26:12,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:12" (1/1) ... [2021-11-21 01:26:12,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:12" (1/1) ... [2021-11-21 01:26:13,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:12" (1/1) ... [2021-11-21 01:26:13,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:12" (1/1) ... [2021-11-21 01:26:13,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:12" (1/1) ... [2021-11-21 01:26:13,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:26:13,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:26:13,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:26:13,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:26:13,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:12" (1/1) ... [2021-11-21 01:26:13,088 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:26:13,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:26:13,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:26:13,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:26:13,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:26:13,150 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:26:13,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:26:13,151 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 01:26:13,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:26:13,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:26:13,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:26:13,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:26:13,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:26:13,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:26:13,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:26:13,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:26:13,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:26:13,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:26:13,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:26:13,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:26:13,419 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:26:13,421 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:26:14,651 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:26:15,048 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:26:15,049 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-21 01:26:15,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:26:15 BoogieIcfgContainer [2021-11-21 01:26:15,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:26:15,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:26:15,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:26:15,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:26:15,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:26:11" (1/3) ... [2021-11-21 01:26:15,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a0fe63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:26:15, skipping insertion in model container [2021-11-21 01:26:15,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:12" (2/3) ... [2021-11-21 01:26:15,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a0fe63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:26:15, skipping insertion in model container [2021-11-21 01:26:15,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:26:15" (3/3) ... [2021-11-21 01:26:15,060 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test2-2.i [2021-11-21 01:26:15,067 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:26:15,067 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-21 01:26:15,126 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:26:15,140 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:26:15,140 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-21 01:26:15,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-21 01:26:15,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 01:26:15,171 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:26:15,171 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:26:15,172 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:26:15,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:26:15,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1967387469, now seen corresponding path program 1 times [2021-11-21 01:26:15,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:26:15,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452352750] [2021-11-21 01:26:15,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:26:15,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:26:15,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:26:15,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:26:15,335 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:26:15,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452352750] [2021-11-21 01:26:15,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452352750] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:26:15,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:26:15,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:26:15,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746693197] [2021-11-21 01:26:15,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:26:15,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:26:15,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:26:15,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:26:15,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:26:15,371 INFO L87 Difference]: Start difference. First operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) 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) [2021-11-21 01:26:17,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:26:17,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:26:17,645 INFO L93 Difference]: Finished difference Result 245 states and 432 transitions. [2021-11-21 01:26:17,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:26:17,673 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 [2021-11-21 01:26:17,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:26:17,681 INFO L225 Difference]: With dead ends: 245 [2021-11-21 01:26:17,681 INFO L226 Difference]: Without dead ends: 107 [2021-11-21 01:26:17,685 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 [2021-11-21 01:26:17,688 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:26:17,690 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-21 01:26:17,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-21 01:26:17,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-11-21 01:26:17,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 95 states have (on average 1.2210526315789474) internal successors, (116), 101 states have internal predecessors, (116), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-21 01:26:17,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 132 transitions. [2021-11-21 01:26:17,736 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 132 transitions. Word has length 8 [2021-11-21 01:26:17,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:26:17,736 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 132 transitions. [2021-11-21 01:26:17,736 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) [2021-11-21 01:26:17,737 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 132 transitions. [2021-11-21 01:26:17,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 01:26:17,739 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:26:17,739 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:26:17,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:26:17,739 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:26:17,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:26:17,740 INFO L85 PathProgramCache]: Analyzing trace with hash 666058235, now seen corresponding path program 1 times [2021-11-21 01:26:17,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:26:17,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159294621] [2021-11-21 01:26:17,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:26:17,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:26:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:26:17,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:26:17,815 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:26:17,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159294621] [2021-11-21 01:26:17,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159294621] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:26:17,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:26:17,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:26:17,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040910276] [2021-11-21 01:26:17,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:26:17,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:26:17,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:26:17,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:26:17,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:26:17,819 INFO L87 Difference]: Start difference. First operand 107 states and 132 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:26:18,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:26:18,836 INFO L93 Difference]: Finished difference Result 222 states and 282 transitions. [2021-11-21 01:26:18,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:26:18,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-21 01:26:18,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:26:18,844 INFO L225 Difference]: With dead ends: 222 [2021-11-21 01:26:18,845 INFO L226 Difference]: Without dead ends: 168 [2021-11-21 01:26:18,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:26:18,849 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 66 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:26:18,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 319 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-21 01:26:18,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-11-21 01:26:18,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 109. [2021-11-21 01:26:18,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 97 states have (on average 1.2164948453608246) internal successors, (118), 103 states have internal predecessors, (118), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-21 01:26:18,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 134 transitions. [2021-11-21 01:26:18,881 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 134 transitions. Word has length 20 [2021-11-21 01:26:18,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:26:18,882 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 134 transitions. [2021-11-21 01:26:18,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:26:18,884 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 134 transitions. [2021-11-21 01:26:18,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-21 01:26:18,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:26:18,887 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] [2021-11-21 01:26:18,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:26:18,888 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:26:18,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:26:18,889 INFO L85 PathProgramCache]: Analyzing trace with hash -148459342, now seen corresponding path program 1 times [2021-11-21 01:26:18,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:26:18,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156500161] [2021-11-21 01:26:18,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:26:18,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:26:18,931 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:26:18,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523798208] [2021-11-21 01:26:18,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:26:18,937 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:26:18,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:26:18,939 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:26:18,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:26:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:26:19,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:26:19,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:26:19,455 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:26:19,456 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:26:19,456 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:26:19,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156500161] [2021-11-21 01:26:19,457 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:26:19,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523798208] [2021-11-21 01:26:19,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523798208] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:26:19,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:26:19,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:26:19,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013051736] [2021-11-21 01:26:19,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:26:19,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:26:19,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:26:19,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:26:19,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:26:19,460 INFO L87 Difference]: Start difference. First operand 109 states and 134 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) [2021-11-21 01:26:21,090 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:26:23,113 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:26:23,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:26:23,114 INFO L93 Difference]: Finished difference Result 260 states and 324 transitions. [2021-11-21 01:26:23,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:26:23,139 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 [2021-11-21 01:26:23,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:26:23,141 INFO L225 Difference]: With dead ends: 260 [2021-11-21 01:26:23,141 INFO L226 Difference]: Without dead ends: 154 [2021-11-21 01:26:23,142 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 [2021-11-21 01:26:23,143 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 43 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:26:23,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 238 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-21 01:26:23,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-21 01:26:23,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2021-11-21 01:26:23,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 135 states have (on average 1.2148148148148148) internal successors, (164), 146 states have internal predecessors, (164), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:26:23,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 190 transitions. [2021-11-21 01:26:23,161 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 190 transitions. Word has length 44 [2021-11-21 01:26:23,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:26:23,162 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 190 transitions. [2021-11-21 01:26:23,162 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) [2021-11-21 01:26:23,162 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 190 transitions. [2021-11-21 01:26:23,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-21 01:26:23,165 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:26:23,165 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] [2021-11-21 01:26:23,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-21 01:26:23,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:26:23,378 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:26:23,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:26:23,379 INFO L85 PathProgramCache]: Analyzing trace with hash 2144184370, now seen corresponding path program 1 times [2021-11-21 01:26:23,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:26:23,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661118291] [2021-11-21 01:26:23,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:26:23,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:26:23,400 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:26:23,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [721776190] [2021-11-21 01:26:23,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:26:23,401 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:26:23,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:26:23,402 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:26:23,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:26:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:26:23,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:26:23,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:26:23,836 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:26:23,836 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:26:23,836 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:26:23,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661118291] [2021-11-21 01:26:23,837 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:26:23,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721776190] [2021-11-21 01:26:23,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721776190] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:26:23,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:26:23,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:26:23,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011611923] [2021-11-21 01:26:23,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:26:23,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:26:23,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:26:23,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:26:23,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:26:23,840 INFO L87 Difference]: Start difference. First operand 152 states and 190 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) [2021-11-21 01:26:25,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:26:25,294 INFO L93 Difference]: Finished difference Result 258 states and 321 transitions. [2021-11-21 01:26:25,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:26:25,295 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 [2021-11-21 01:26:25,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:26:25,297 INFO L225 Difference]: With dead ends: 258 [2021-11-21 01:26:25,297 INFO L226 Difference]: Without dead ends: 122 [2021-11-21 01:26:25,298 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 [2021-11-21 01:26:25,299 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 163 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:26:25,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 156 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-21 01:26:25,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-21 01:26:25,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-21 01:26:25,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.1818181818181819) internal successors, (130), 116 states have internal predecessors, (130), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-21 01:26:25,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 146 transitions. [2021-11-21 01:26:25,313 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 146 transitions. Word has length 57 [2021-11-21 01:26:25,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:26:25,314 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 146 transitions. [2021-11-21 01:26:25,314 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) [2021-11-21 01:26:25,314 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 146 transitions. [2021-11-21 01:26:25,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-21 01:26:25,317 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:26:25,317 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] [2021-11-21 01:26:25,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:26:25,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:26:25,531 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:26:25,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:26:25,531 INFO L85 PathProgramCache]: Analyzing trace with hash 427509094, now seen corresponding path program 1 times [2021-11-21 01:26:25,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:26:25,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455114279] [2021-11-21 01:26:25,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:26:25,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:26:25,549 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:26:25,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [913677684] [2021-11-21 01:26:25,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:26:25,550 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:26:25,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:26:25,551 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:26:25,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:26:44,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:26:44,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:26:44,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:26:44,994 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:26:44,995 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:26:44,995 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:26:44,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455114279] [2021-11-21 01:26:44,995 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:26:44,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913677684] [2021-11-21 01:26:44,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913677684] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:26:44,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:26:44,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:26:44,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583432833] [2021-11-21 01:26:44,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:26:44,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:26:44,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:26:44,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:26:44,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:26:44,999 INFO L87 Difference]: Start difference. First operand 122 states and 146 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) [2021-11-21 01:26:47,862 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:26:49,632 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:26:49,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:26:49,633 INFO L93 Difference]: Finished difference Result 227 states and 276 transitions. [2021-11-21 01:26:49,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:26:49,658 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 [2021-11-21 01:26:49,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:26:49,659 INFO L225 Difference]: With dead ends: 227 [2021-11-21 01:26:49,659 INFO L226 Difference]: Without dead ends: 124 [2021-11-21 01:26:49,660 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 [2021-11-21 01:26:49,661 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 1 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:26:49,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 344 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-11-21 01:26:49,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-11-21 01:26:49,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2021-11-21 01:26:49,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 111 states have (on average 1.1891891891891893) internal successors, (132), 118 states have internal predecessors, (132), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2021-11-21 01:26:49,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 149 transitions. [2021-11-21 01:26:49,678 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 149 transitions. Word has length 64 [2021-11-21 01:26:49,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:26:49,682 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 149 transitions. [2021-11-21 01:26:49,683 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) [2021-11-21 01:26:49,683 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 149 transitions. [2021-11-21 01:26:49,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-21 01:26:49,686 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:26:49,686 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] [2021-11-21 01:26:49,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-21 01:26:49,898 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:26:49,901 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:26:49,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:26:49,902 INFO L85 PathProgramCache]: Analyzing trace with hash -64659160, now seen corresponding path program 1 times [2021-11-21 01:26:49,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:26:49,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404362951] [2021-11-21 01:26:49,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:26:49,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:26:49,936 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:26:49,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1580631868] [2021-11-21 01:26:49,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:26:49,939 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:26:49,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:26:49,940 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:26:49,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eab64fbb-9eb7-4466-a35a-9576a07d8bab/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:26:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:26:59,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 01:26:59,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:26:59,338 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:26:59,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:26:59,556 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:26:59,556 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:26:59,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404362951] [2021-11-21 01:26:59,557 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:26:59,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580631868] [2021-11-21 01:26:59,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580631868] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:26:59,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1760226538] [2021-11-21 01:26:59,578 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-21 01:26:59,579 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:26:59,583 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:26:59,588 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:26:59,588 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:26:59,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:26:59,734 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:26:59,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-21 01:26:59,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:26:59,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:26:59,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 01:26:59,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:26:59,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 01:26:59,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:26:59,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:26:59,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:26:59,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:26:59,958 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-21 01:26:59,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 32 treesize of output 49 [2021-11-21 01:26:59,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:00,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:00,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:00,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:00,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2021-11-21 01:27:00,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:00,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:27:00,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:00,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:27:00,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:00,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:00,108 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:27:00,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 30 [2021-11-21 01:27:01,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 77 [2021-11-21 01:27:01,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 74 [2021-11-21 01:27:01,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:27:01,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:27:01,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:27:01,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 19 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 86 [2021-11-21 01:27:01,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:27:01,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:01,959 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:27:01,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 75 treesize of output 77 [2021-11-21 01:27:02,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:02,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:02,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:02,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:02,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:02,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:02,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:27:02,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:02,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:02,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:02,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:02,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:02,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:02,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 115 [2021-11-21 01:27:02,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:02,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:02,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:02,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:02,206 INFO L354 Elim1Store]: treesize reduction 194, result has 22.4 percent of original size [2021-11-21 01:27:02,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 127 treesize of output 163 [2021-11-21 01:27:02,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:02,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:02,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:02,268 INFO L354 Elim1Store]: treesize reduction 120, result has 14.9 percent of original size [2021-11-21 01:27:02,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 145 treesize of output 156 [2021-11-21 01:27:02,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:27:02,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:27:02,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:27:02,911 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-21 01:27:02,912 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 98 treesize of output 97 [2021-11-21 01:27:02,940 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:27:02,940 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 94 treesize of output 93 [2021-11-21 01:27:02,962 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:27:02,962 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 90 treesize of output 89 [2021-11-21 01:27:03,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:27:03,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:27:03,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:27:03,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 01:27:03,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:27:03,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:27:03,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 01:27:03,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:27:03,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:03,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:27:12,154 WARN L227 SmtUtils]: Spent 8.42s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:27:12,155 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:27:12,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2847 treesize of output 2324 [2021-11-21 01:27:12,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:22,245 WARN L227 SmtUtils]: Spent 10.05s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:27:22,246 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:27:22,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2948 treesize of output 2666 [2021-11-21 01:27:32,997 WARN L227 SmtUtils]: Spent 10.56s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:27:32,999 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-21 01:27:33,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2916 treesize of output 2686 [2021-11-21 01:27:33,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:33,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:33,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:34,596 INFO L354 Elim1Store]: treesize reduction 188, result has 20.0 percent of original size [2021-11-21 01:27:34,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 25954 treesize of output 25985 [2021-11-21 01:27:34,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:34,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:35,536 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-21 01:27:35,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 25964 treesize of output 25978 [2021-11-21 01:27:38,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:38,116 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-21 01:27:38,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-21 01:27:38,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:38,729 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:27:38,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 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 [2021-11-21 01:27:39,738 INFO L244 Elim1Store]: Index analysis took 246 ms [2021-11-21 01:27:39,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:42,073 INFO L354 Elim1Store]: treesize reduction 476, result has 74.2 percent of original size [2021-11-21 01:27:42,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1741 treesize of output 2653 [2021-11-21 01:27:45,177 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:27:45,179 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:27:45,179 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:27:45,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:45,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:45,213 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:27:45,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:45,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:45,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:45,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:45,293 INFO L244 Elim1Store]: Index analysis took 117 ms [2021-11-21 01:27:45,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1741 treesize of output 1287 [2021-11-21 01:27:46,468 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:27:46,825 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:27:47,922 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:27:48,205 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:27:48,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:48,232 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:27:48,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:48,253 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:27:48,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:48,383 INFO L244 Elim1Store]: Index analysis took 179 ms [2021-11-21 01:27:48,898 INFO L354 Elim1Store]: treesize reduction 16, result has 95.9 percent of original size [2021-11-21 01:27:48,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 1664 treesize of output 1656 [2021-11-21 01:27:50,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:50,859 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-21 01:27:50,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1304 treesize of output 1300 [2021-11-21 01:27:51,621 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:27:51,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:51,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2021-11-21 01:27:51,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:51,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-21 01:27:52,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:52,966 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:27:52,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 11 [2021-11-21 01:27:53,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:53,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:53,308 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-21 01:27:53,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 14 [2021-11-21 01:27:53,811 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:27:54,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:27:54,449 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:27:54,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-21 01:28:01,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:28:01,297 INFO L190 IndexEqualityManager]: detected not equals via solver