./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.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_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/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_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/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_7742d2c7-3dae-477f-9889-e0fa54e69dc4/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 e2cb3c9a8570b7ee66b623ed5fd2a1832f018e766f6bb5120cee7430951770d6 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:39:15,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:39:15,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:39:15,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:39:15,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:39:15,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:39:15,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:39:15,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:39:15,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:39:16,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:39:16,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:39:16,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:39:16,004 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:39:16,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:39:16,008 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:39:16,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:39:16,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:39:16,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:39:16,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:39:16,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:39:16,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:39:16,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:39:16,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:39:16,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:39:16,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:39:16,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:39:16,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:39:16,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:39:16,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:39:16,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:39:16,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:39:16,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:39:16,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:39:16,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:39:16,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:39:16,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:39:16,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:39:16,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:39:16,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:39:16,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:39:16,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:39:16,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:39:16,083 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:39:16,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:39:16,084 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:39:16,084 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:39:16,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:39:16,085 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:39:16,085 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:39:16,087 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:39:16,087 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:39:16,088 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:39:16,089 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:39:16,089 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:39:16,090 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:39:16,090 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:39:16,090 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:39:16,090 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:39:16,090 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:39:16,091 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:39:16,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:39:16,092 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:39:16,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:39:16,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:39:16,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:39:16,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:39:16,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:39:16,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:39:16,095 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:39:16,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:39:16,095 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:39:16,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:39:16,096 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:39:16,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:39:16,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:39:16,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:39:16,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:39:16,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:39:16,097 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:39:16,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:39:16,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:39:16,098 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:39:16,098 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:39:16,098 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_7742d2c7-3dae-477f-9889-e0fa54e69dc4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2cb3c9a8570b7ee66b623ed5fd2a1832f018e766f6bb5120cee7430951770d6 [2021-11-21 01:39:16,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:39:16,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:39:16,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:39:16,426 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:39:16,427 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:39:16,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i [2021-11-21 01:39:16,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/data/2421c1104/4f7b92f516f643de8cfdfd0e2ba9832d/FLAG689fd914f [2021-11-21 01:39:17,357 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:39:17,358 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i [2021-11-21 01:39:17,390 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/data/2421c1104/4f7b92f516f643de8cfdfd0e2ba9832d/FLAG689fd914f [2021-11-21 01:39:17,410 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/data/2421c1104/4f7b92f516f643de8cfdfd0e2ba9832d [2021-11-21 01:39:17,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:39:17,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:39:17,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:39:17,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:39:17,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:39:17,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:39:17" (1/1) ... [2021-11-21 01:39:17,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3583c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:17, skipping insertion in model container [2021-11-21 01:39:17,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:39:17" (1/1) ... [2021-11-21 01:39:17,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:39:17,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:39:18,232 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_7742d2c7-3dae-477f-9889-e0fa54e69dc4/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i[33021,33034] [2021-11-21 01:39:18,490 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_7742d2c7-3dae-477f-9889-e0fa54e69dc4/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i[84583,84596] [2021-11-21 01:39:18,498 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:39:18,512 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:39:18,561 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_7742d2c7-3dae-477f-9889-e0fa54e69dc4/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i[33021,33034] [2021-11-21 01:39:18,751 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_7742d2c7-3dae-477f-9889-e0fa54e69dc4/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-1.i[84583,84596] [2021-11-21 01:39:18,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:39:18,800 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:39:18,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:18 WrapperNode [2021-11-21 01:39:18,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:39:18,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:39:18,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:39:18,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:39:18,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:18" (1/1) ... [2021-11-21 01:39:18,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:18" (1/1) ... [2021-11-21 01:39:19,029 INFO L137 Inliner]: procedures = 177, calls = 730, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2864 [2021-11-21 01:39:19,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:39:19,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:39:19,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:39:19,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:39:19,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:18" (1/1) ... [2021-11-21 01:39:19,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:18" (1/1) ... [2021-11-21 01:39:19,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:18" (1/1) ... [2021-11-21 01:39:19,052 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:18" (1/1) ... [2021-11-21 01:39:19,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:18" (1/1) ... [2021-11-21 01:39:19,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:18" (1/1) ... [2021-11-21 01:39:19,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:18" (1/1) ... [2021-11-21 01:39:19,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:39:19,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:39:19,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:39:19,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:39:19,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:18" (1/1) ... [2021-11-21 01:39:19,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:39:19,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:39:19,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:39:19,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:39:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:39:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:39:19,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:39:19,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:39:19,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:39:19,301 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:39:19,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:39:19,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:39:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:39:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:39:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 01:39:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:39:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:39:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:39:19,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:39:19,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:39:19,567 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:39:19,568 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:39:21,846 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:39:22,350 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:39:22,350 INFO L301 CfgBuilder]: Removed 54 assume(true) statements. [2021-11-21 01:39:22,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:39:22 BoogieIcfgContainer [2021-11-21 01:39:22,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:39:22,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:39:22,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:39:22,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:39:22,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:39:17" (1/3) ... [2021-11-21 01:39:22,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430eab92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:39:22, skipping insertion in model container [2021-11-21 01:39:22,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:18" (2/3) ... [2021-11-21 01:39:22,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430eab92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:39:22, skipping insertion in model container [2021-11-21 01:39:22,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:39:22" (3/3) ... [2021-11-21 01:39:22,367 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test9-1.i [2021-11-21 01:39:22,373 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:39:22,373 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-21 01:39:22,442 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:39:22,459 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 01:39:22,460 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-21 01:39:22,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 1099 states, 591 states have (on average 1.9678510998307952) internal successors, (1163), 1093 states have internal predecessors, (1163), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-21 01:39:22,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 01:39:22,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:39:22,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:39:22,529 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:39:22,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:39:22,535 INFO L85 PathProgramCache]: Analyzing trace with hash 933194323, now seen corresponding path program 1 times [2021-11-21 01:39:22,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:39:22,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301268339] [2021-11-21 01:39:22,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:22,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:39:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:39:22,720 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 01:39:22,721 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:39:22,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301268339] [2021-11-21 01:39:22,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301268339] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:39:22,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:39:22,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:39:22,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091396280] [2021-11-21 01:39:22,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:39:22,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:39:22,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:39:22,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:39:22,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:39:22,761 INFO L87 Difference]: Start difference. First operand has 1099 states, 591 states have (on average 1.9678510998307952) internal successors, (1163), 1093 states have internal predecessors, (1163), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:39:23,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:39:23,565 INFO L93 Difference]: Finished difference Result 2197 states and 4837 transitions. [2021-11-21 01:39:23,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:39:23,580 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 01:39:23,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:39:23,631 INFO L225 Difference]: With dead ends: 2197 [2021-11-21 01:39:23,632 INFO L226 Difference]: Without dead ends: 1097 [2021-11-21 01:39:23,654 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 01:39:23,660 INFO L933 BasicCegarLoop]: 2100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:39:23,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 2100 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-21 01:39:23,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2021-11-21 01:39:24,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1097. [2021-11-21 01:39:24,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1097 states, 590 states have (on average 1.8745762711864407) internal successors, (1106), 1091 states have internal predecessors, (1106), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-21 01:39:24,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 2112 transitions. [2021-11-21 01:39:24,173 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 2112 transitions. Word has length 8 [2021-11-21 01:39:24,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:39:24,174 INFO L470 AbstractCegarLoop]: Abstraction has 1097 states and 2112 transitions. [2021-11-21 01:39:24,174 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 01:39:24,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 2112 transitions. [2021-11-21 01:39:24,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 01:39:24,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:39:24,177 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 01:39:24,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:39:24,178 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:39:24,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:39:24,179 INFO L85 PathProgramCache]: Analyzing trace with hash -99314707, now seen corresponding path program 1 times [2021-11-21 01:39:24,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:39:24,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338068611] [2021-11-21 01:39:24,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:24,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:39:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:39:24,260 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 01:39:24,261 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:39:24,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338068611] [2021-11-21 01:39:24,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338068611] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:39:24,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:39:24,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:39:24,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851520256] [2021-11-21 01:39:24,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:39:24,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:39:24,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:39:24,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:39:24,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:39:24,266 INFO L87 Difference]: Start difference. First operand 1097 states and 2112 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:39:28,285 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:39:28,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:39:28,365 INFO L93 Difference]: Finished difference Result 3192 states and 6222 transitions. [2021-11-21 01:39:28,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:39:28,402 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 01:39:28,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:39:28,439 INFO L225 Difference]: With dead ends: 3192 [2021-11-21 01:39:28,440 INFO L226 Difference]: Without dead ends: 2148 [2021-11-21 01:39:28,451 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 01:39:28,453 INFO L933 BasicCegarLoop]: 2589 mSDtfsCounter, 1056 mSDsluCounter, 4176 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 6754 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:39:28,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1556 Valid, 6754 Invalid, 580 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 577 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-21 01:39:28,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2148 states. [2021-11-21 01:39:29,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2148 to 1099. [2021-11-21 01:39:29,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1099 states, 592 states have (on average 1.8716216216216217) internal successors, (1108), 1093 states have internal predecessors, (1108), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-21 01:39:29,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1099 states to 1099 states and 2114 transitions. [2021-11-21 01:39:29,184 INFO L78 Accepts]: Start accepts. Automaton has 1099 states and 2114 transitions. Word has length 20 [2021-11-21 01:39:29,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:39:29,184 INFO L470 AbstractCegarLoop]: Abstraction has 1099 states and 2114 transitions. [2021-11-21 01:39:29,185 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 01:39:29,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states and 2114 transitions. [2021-11-21 01:39:29,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-21 01:39:29,187 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:39:29,187 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 01:39:29,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:39:29,188 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:39:29,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:39:29,189 INFO L85 PathProgramCache]: Analyzing trace with hash 289738723, now seen corresponding path program 1 times [2021-11-21 01:39:29,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:39:29,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220992637] [2021-11-21 01:39:29,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:29,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:39:29,213 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:39:29,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1481858754] [2021-11-21 01:39:29,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:29,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:39:29,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:39:29,217 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:39:29,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:39:29,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:39:29,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:39:29,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:39:29,682 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 01:39:29,682 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:39:29,683 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:39:29,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220992637] [2021-11-21 01:39:29,684 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:39:29,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481858754] [2021-11-21 01:39:29,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481858754] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:39:29,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:39:29,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:39:29,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288326484] [2021-11-21 01:39:29,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:39:29,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:39:29,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:39:29,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:39:29,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:39:29,694 INFO L87 Difference]: Start difference. First operand 1099 states and 2114 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:39:31,337 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:39:31,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:39:31,735 INFO L93 Difference]: Finished difference Result 3230 states and 6264 transitions. [2021-11-21 01:39:31,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:39:31,747 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 01:39:31,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:39:31,774 INFO L225 Difference]: With dead ends: 3230 [2021-11-21 01:39:31,774 INFO L226 Difference]: Without dead ends: 2134 [2021-11-21 01:39:31,783 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 01:39:31,787 INFO L933 BasicCegarLoop]: 2612 mSDtfsCounter, 1033 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 4693 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:39:31,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1535 Valid, 4693 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-21 01:39:31,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2134 states. [2021-11-21 01:39:32,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2134 to 2132. [2021-11-21 01:39:32,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2132 states, 1125 states have (on average 1.9057777777777778) internal successors, (2144), 2126 states have internal predecessors, (2144), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2021-11-21 01:39:32,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2132 states to 2132 states and 4150 transitions. [2021-11-21 01:39:32,405 INFO L78 Accepts]: Start accepts. Automaton has 2132 states and 4150 transitions. Word has length 44 [2021-11-21 01:39:32,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:39:32,408 INFO L470 AbstractCegarLoop]: Abstraction has 2132 states and 4150 transitions. [2021-11-21 01:39:32,408 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 01:39:32,408 INFO L276 IsEmpty]: Start isEmpty. Operand 2132 states and 4150 transitions. [2021-11-21 01:39:32,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-21 01:39:32,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:39:32,422 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 01:39:32,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:39:32,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:39:32,638 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:39:32,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:39:32,638 INFO L85 PathProgramCache]: Analyzing trace with hash -2064469897, now seen corresponding path program 1 times [2021-11-21 01:39:32,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:39:32,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386027972] [2021-11-21 01:39:32,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:32,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:39:32,683 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:39:32,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [737008008] [2021-11-21 01:39:32,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:32,686 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:39:32,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:39:32,689 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:39:32,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:39:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:39:32,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:39:32,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:39:33,146 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 01:39:33,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:39:33,146 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:39:33,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386027972] [2021-11-21 01:39:33,147 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:39:33,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737008008] [2021-11-21 01:39:33,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737008008] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:39:33,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:39:33,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:39:33,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035954231] [2021-11-21 01:39:33,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:39:33,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:39:33,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:39:33,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:39:33,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:39:33,149 INFO L87 Difference]: Start difference. First operand 2132 states and 4150 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:39:35,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:39:35,631 INFO L93 Difference]: Finished difference Result 3228 states and 6261 transitions. [2021-11-21 01:39:35,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:39:35,632 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 01:39:35,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:39:35,648 INFO L225 Difference]: With dead ends: 3228 [2021-11-21 01:39:35,648 INFO L226 Difference]: Without dead ends: 1112 [2021-11-21 01:39:35,667 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 01:39:35,668 INFO L933 BasicCegarLoop]: 2090 mSDtfsCounter, 2143 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1003 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2143 SdHoareTripleChecker+Valid, 3126 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1003 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:39:35,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2143 Valid, 3126 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1003 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-21 01:39:35,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2021-11-21 01:39:35,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1112. [2021-11-21 01:39:35,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1112 states, 605 states have (on average 1.8512396694214877) internal successors, (1120), 1106 states have internal predecessors, (1120), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-21 01:39:35,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 2126 transitions. [2021-11-21 01:39:35,925 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 2126 transitions. Word has length 57 [2021-11-21 01:39:35,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:39:35,926 INFO L470 AbstractCegarLoop]: Abstraction has 1112 states and 2126 transitions. [2021-11-21 01:39:35,926 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 01:39:35,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 2126 transitions. [2021-11-21 01:39:35,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-21 01:39:35,928 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:39:35,928 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 01:39:35,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:39:36,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:39:36,142 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:39:36,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:39:36,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1521015925, now seen corresponding path program 1 times [2021-11-21 01:39:36,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:39:36,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32169198] [2021-11-21 01:39:36,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:36,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:39:36,166 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:39:36,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [990418213] [2021-11-21 01:39:36,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:36,170 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:39:36,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:39:36,171 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:39:36,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:39:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:39:37,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:39:37,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:39:37,265 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:39:37,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:39:37,265 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:39:37,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32169198] [2021-11-21 01:39:37,266 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:39:37,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990418213] [2021-11-21 01:39:37,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990418213] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:39:37,266 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:39:37,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:39:37,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124534870] [2021-11-21 01:39:37,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:39:37,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:39:37,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:39:37,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:39:37,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:39:37,269 INFO L87 Difference]: Start difference. First operand 1112 states and 2126 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:39:39,205 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:39:40,646 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:39:40,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:39:40,658 INFO L93 Difference]: Finished difference Result 2207 states and 4236 transitions. [2021-11-21 01:39:40,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:39:40,678 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2021-11-21 01:39:40,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:39:40,690 INFO L225 Difference]: With dead ends: 2207 [2021-11-21 01:39:40,690 INFO L226 Difference]: Without dead ends: 1114 [2021-11-21 01:39:40,697 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 01:39:40,698 INFO L933 BasicCegarLoop]: 2096 mSDtfsCounter, 1 mSDsluCounter, 4212 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6284 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:39:40,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 6284 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-21 01:39:40,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2021-11-21 01:39:40,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1114. [2021-11-21 01:39:40,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1114 states, 606 states have (on average 1.8514851485148516) internal successors, (1122), 1108 states have internal predecessors, (1122), 503 states have call successors, (503), 2 states have call predecessors, (503), 3 states have return successors, (504), 4 states have call predecessors, (504), 503 states have call successors, (504) [2021-11-21 01:39:40,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 2129 transitions. [2021-11-21 01:39:40,879 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 2129 transitions. Word has length 64 [2021-11-21 01:39:40,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:39:40,879 INFO L470 AbstractCegarLoop]: Abstraction has 1114 states and 2129 transitions. [2021-11-21 01:39:40,880 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:39:40,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 2129 transitions. [2021-11-21 01:39:40,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-21 01:39:40,881 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:39:40,881 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 01:39:40,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-21 01:39:41,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:39:41,098 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:39:41,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:39:41,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1487083651, now seen corresponding path program 1 times [2021-11-21 01:39:41,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:39:41,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447390313] [2021-11-21 01:39:41,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:41,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:39:41,114 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:39:41,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1874872260] [2021-11-21 01:39:41,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:41,114 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:39:41,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:39:41,115 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:39:41,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7742d2c7-3dae-477f-9889-e0fa54e69dc4/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:39:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:39:47,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 01:39:47,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:39:47,605 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:39:47,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:39:47,874 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:39:47,874 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:39:47,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447390313] [2021-11-21 01:39:47,875 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:39:47,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874872260] [2021-11-21 01:39:47,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874872260] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:39:47,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2049211332] [2021-11-21 01:39:47,903 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-21 01:39:47,903 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:39:47,909 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:39:47,916 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:39:47,916 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:39:48,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:48,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:48,275 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:39:48,280 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 01:39:48,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:48,308 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 01:39:48,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:48,332 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 01:39:48,361 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 01:39:48,383 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 01:39:48,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:48,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:48,572 INFO L354 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2021-11-21 01:39:48,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 38 [2021-11-21 01:39:48,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:48,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:48,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:48,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:48,676 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:39:48,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-21 01:39:48,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:48,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:39:48,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:48,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:48,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:48,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:48,777 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 01:39:48,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:48,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:39:50,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,483 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 01:39:50,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,534 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 01:39:50,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,562 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 74 treesize of output 76 [2021-11-21 01:39:50,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,664 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 01:39:50,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 98 [2021-11-21 01:39:50,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-21 01:39:50,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,874 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 01:39:50,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,956 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 01:39:51,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,100 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 01:39:51,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,196 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:39:51,196 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 01:39:51,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,292 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 01:39:51,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,382 INFO L354 Elim1Store]: treesize reduction 120, result has 14.9 percent of original size [2021-11-21 01:39:51,382 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 127 treesize of output 138 [2021-11-21 01:39:51,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:51,489 INFO L354 Elim1Store]: treesize reduction 224, result has 10.4 percent of original size [2021-11-21 01:39:51,490 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 126 treesize of output 132 [2021-11-21 01:39:52,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:39:52,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:39:52,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:39:52,395 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-21 01:39:52,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 88 [2021-11-21 01:39:52,425 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 01:39:52,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 91 [2021-11-21 01:39:52,467 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 01:39:52,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 94 [2021-11-21 01:39:52,614 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 01:39:52,628 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 01:39:52,646 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 01:39:52,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,751 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 01:39:52,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,821 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 01:39:52,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:52,944 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 01:39:53,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,427 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 01:39:53,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,477 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 01:39:53,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,514 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 01:40:00,721 WARN L227 SmtUtils]: Spent 7.09s 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 01:40:00,722 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:40:00,722 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 01:40:00,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:11,191 WARN L227 SmtUtils]: Spent 10.40s 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 01:40:11,192 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:40:11,193 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 01:40:22,214 WARN L227 SmtUtils]: Spent 10.89s 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 01:40:22,216 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-21 01:40:22,217 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 01:40:22,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:22,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:22,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:24,142 INFO L354 Elim1Store]: treesize reduction 188, result has 20.0 percent of original size [2021-11-21 01:40:24,146 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 01:40:24,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:24,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:24,854 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-21 01:40:24,855 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 01:40:26,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:26,874 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-21 01:40:26,874 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 01:40:27,149 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:40:27,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:28,017 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:40:28,018 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