./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7 --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 2f1aaf5276e100f83cf10565e66c3b5d8c0baa3bbd1a1424b76fbee71241f226 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:32:49,094 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:32:49,096 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:32:49,129 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:32:49,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:32:49,131 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:32:49,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:32:49,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:32:49,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:32:49,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:32:49,141 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:32:49,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:32:49,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:32:49,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:32:49,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:32:49,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:32:49,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:32:49,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:32:49,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:32:49,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:32:49,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:32:49,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:32:49,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:32:49,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:32:49,172 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:32:49,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:32:49,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:32:49,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:32:49,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:32:49,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:32:49,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:32:49,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:32:49,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:32:49,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:32:49,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:32:49,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:32:49,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:32:49,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:32:49,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:32:49,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:32:49,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:32:49,196 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 19:32:49,250 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:32:49,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:32:49,251 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:32:49,251 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:32:49,252 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:32:49,252 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:32:49,252 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:32:49,252 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:32:49,253 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:32:49,253 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:32:49,253 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:32:49,253 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:32:49,253 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:32:49,254 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:32:49,254 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:32:49,254 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:32:49,254 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:32:49,254 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:32:49,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:32:49,255 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:32:49,256 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:32:49,256 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:32:49,256 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:32:49,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:32:49,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:32:49,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:32:49,264 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:32:49,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:32:49,265 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:32:49,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:32:49,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:32:49,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:32:49,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:32:49,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:32:49,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:32:49,267 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:32:49,268 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:32:49,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:32:49,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:32:49,268 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:32:49,268 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:32:49,269 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_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f1aaf5276e100f83cf10565e66c3b5d8c0baa3bbd1a1424b76fbee71241f226 [2021-11-25 19:32:49,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:32:49,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:32:49,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:32:49,647 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:32:49,648 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:32:49,649 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i [2021-11-25 19:32:49,734 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/data/7e299bfca/5026e0f30a5448bdbc076fb63d0f4214/FLAGcbd9dfa33 [2021-11-25 19:32:50,394 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:32:50,395 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i [2021-11-25 19:32:50,420 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/data/7e299bfca/5026e0f30a5448bdbc076fb63d0f4214/FLAGcbd9dfa33 [2021-11-25 19:32:50,577 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/data/7e299bfca/5026e0f30a5448bdbc076fb63d0f4214 [2021-11-25 19:32:50,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:32:50,582 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:32:50,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:32:50,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:32:50,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:32:50,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:32:50" (1/1) ... [2021-11-25 19:32:50,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17b78c08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:50, skipping insertion in model container [2021-11-25 19:32:50,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:32:50" (1/1) ... [2021-11-25 19:32:50,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:32:50,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:32:51,161 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_c113bf13-cb59-463e-b86f-a97bb7329c46/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i[33021,33034] [2021-11-25 19:32:51,345 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_c113bf13-cb59-463e-b86f-a97bb7329c46/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i[44590,44603] [2021-11-25 19:32:51,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:32:51,374 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:32:51,431 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_c113bf13-cb59-463e-b86f-a97bb7329c46/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i[33021,33034] [2021-11-25 19:32:51,512 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_c113bf13-cb59-463e-b86f-a97bb7329c46/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-1.i[44590,44603] [2021-11-25 19:32:51,524 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:32:51,574 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:32:51,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:51 WrapperNode [2021-11-25 19:32:51,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:32:51,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:32:51,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:32:51,576 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:32:51,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:51" (1/1) ... [2021-11-25 19:32:51,629 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:51" (1/1) ... [2021-11-25 19:32:51,709 INFO L137 Inliner]: procedures = 177, calls = 285, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1026 [2021-11-25 19:32:51,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:32:51,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:32:51,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:32:51,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:32:51,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:51" (1/1) ... [2021-11-25 19:32:51,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:51" (1/1) ... [2021-11-25 19:32:51,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:51" (1/1) ... [2021-11-25 19:32:51,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:51" (1/1) ... [2021-11-25 19:32:51,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:51" (1/1) ... [2021-11-25 19:32:51,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:51" (1/1) ... [2021-11-25 19:32:51,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:51" (1/1) ... [2021-11-25 19:32:51,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:32:51,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:32:51,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:32:51,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:32:51,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:51" (1/1) ... [2021-11-25 19:32:51,937 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:32:51,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:32:51,967 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:32:51,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:32:52,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:32:52,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 19:32:52,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 19:32:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:32:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 19:32:52,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 19:32:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:32:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:32:52,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:32:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:32:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 19:32:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:32:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:32:52,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:32:52,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:32:52,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:32:52,303 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:32:52,305 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:32:53,351 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:32:53,692 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:32:53,693 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-25 19:32:53,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:32:53 BoogieIcfgContainer [2021-11-25 19:32:53,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:32:53,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:32:53,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:32:53,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:32:53,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:32:50" (1/3) ... [2021-11-25 19:32:53,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502f41fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:32:53, skipping insertion in model container [2021-11-25 19:32:53,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:32:51" (2/3) ... [2021-11-25 19:32:53,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502f41fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:32:53, skipping insertion in model container [2021-11-25 19:32:53,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:32:53" (3/3) ... [2021-11-25 19:32:53,706 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test3-1.i [2021-11-25 19:32:53,713 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:32:53,713 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 19:32:53,785 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:32:53,803 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 [2021-11-25 19:32:53,803 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 19:32:53,829 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 19:32:53,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 19:32:53,833 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:32:53,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:32:53,834 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:32:53,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:32:53,839 INFO L85 PathProgramCache]: Analyzing trace with hash -957118725, now seen corresponding path program 1 times [2021-11-25 19:32:53,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:32:53,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046588987] [2021-11-25 19:32:53,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:32:53,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:32:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:32:54,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:32:54,010 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:32:54,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046588987] [2021-11-25 19:32:54,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046588987] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:32:54,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:32:54,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:32:54,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580770033] [2021-11-25 19:32:54,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:32:54,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 19:32:54,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:32:54,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 19:32:54,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 19:32:54,051 INFO L87 Difference]: Start difference. First operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:32:54,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:32:54,820 INFO L93 Difference]: Finished difference Result 245 states and 432 transitions. [2021-11-25 19:32:54,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 19:32:54,830 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 [2021-11-25 19:32:54,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:32:54,839 INFO L225 Difference]: With dead ends: 245 [2021-11-25 19:32:54,839 INFO L226 Difference]: Without dead ends: 122 [2021-11-25 19:32:54,842 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 [2021-11-25 19:32:54,854 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:32:54,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 19:32:54,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-25 19:32:54,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-25 19:32:54,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 116 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 19:32:54,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2021-11-25 19:32:54,915 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2021-11-25 19:32:54,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:32:54,915 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2021-11-25 19:32:54,915 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) [2021-11-25 19:32:54,916 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2021-11-25 19:32:54,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 19:32:54,917 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:32:54,918 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:32:54,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:32:54,918 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:32:54,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:32:54,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1851937168, now seen corresponding path program 1 times [2021-11-25 19:32:54,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:32:54,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318944530] [2021-11-25 19:32:54,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:32:54,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:32:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:32:54,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:32:55,000 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:32:55,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318944530] [2021-11-25 19:32:55,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318944530] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:32:55,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:32:55,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:32:55,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194662116] [2021-11-25 19:32:55,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:32:55,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:32:55,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:32:55,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:32:55,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:32:55,007 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:32:56,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:32:56,316 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2021-11-25 19:32:56,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:32:56,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 19:32:56,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:32:56,324 INFO L225 Difference]: With dead ends: 258 [2021-11-25 19:32:56,324 INFO L226 Difference]: Without dead ends: 189 [2021-11-25 19:32:56,325 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 [2021-11-25 19:32:56,327 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:32:56,327 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 359 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-25 19:32:56,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-25 19:32:56,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2021-11-25 19:32:56,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 118 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 19:32:56,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2021-11-25 19:32:56,349 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2021-11-25 19:32:56,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:32:56,349 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2021-11-25 19:32:56,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:32:56,349 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2021-11-25 19:32:56,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-25 19:32:56,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:32:56,351 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] [2021-11-25 19:32:56,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:32:56,352 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:32:56,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:32:56,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1227120832, now seen corresponding path program 1 times [2021-11-25 19:32:56,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:32:56,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656185502] [2021-11-25 19:32:56,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:32:56,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:32:56,540 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:32:56,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [172876267] [2021-11-25 19:32:56,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:32:56,541 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:32:56,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:32:56,543 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:32:56,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:32:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:32:57,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 1624 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 19:32:57,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:32:57,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:32:57,439 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:32:57,439 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:32:57,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656185502] [2021-11-25 19:32:57,439 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:32:57,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172876267] [2021-11-25 19:32:57,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172876267] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:32:57,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:32:57,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:32:57,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149574902] [2021-11-25 19:32:57,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:32:57,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:32:57,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:32:57,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:32:57,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:32:57,448 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:32:58,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:32:58,861 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2021-11-25 19:32:58,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:32:58,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-25 19:32:58,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:32:58,869 INFO L225 Difference]: With dead ends: 304 [2021-11-25 19:32:58,869 INFO L226 Difference]: Without dead ends: 183 [2021-11-25 19:32:58,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:32:58,871 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:32:58,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 280 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 19:32:58,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-25 19:32:58,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2021-11-25 19:32:58,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 161 states have internal predecessors, (185), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 19:32:58,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2021-11-25 19:32:58,892 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2021-11-25 19:32:58,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:32:58,893 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2021-11-25 19:32:58,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:32:58,893 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2021-11-25 19:32:58,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-25 19:32:58,895 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:32:58,896 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] [2021-11-25 19:32:58,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 19:32:59,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:32:59,121 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:32:59,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:32:59,122 INFO L85 PathProgramCache]: Analyzing trace with hash 2111487482, now seen corresponding path program 1 times [2021-11-25 19:32:59,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:32:59,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059891433] [2021-11-25 19:32:59,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:32:59,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:32:59,208 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:32:59,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1935085798] [2021-11-25 19:32:59,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:32:59,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:32:59,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:32:59,210 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:32:59,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 19:32:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:32:59,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 19:32:59,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:32:59,815 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 [2021-11-25 19:32:59,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 19:32:59,853 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 19:32:59,854 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:32:59,854 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:32:59,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059891433] [2021-11-25 19:32:59,860 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:32:59,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935085798] [2021-11-25 19:32:59,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935085798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:32:59,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:32:59,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:32:59,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255548777] [2021-11-25 19:32:59,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:32:59,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:32:59,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:32:59,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:32:59,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:32:59,863 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 19:33:01,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:33:01,762 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2021-11-25 19:33:01,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:33:01,771 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2021-11-25 19:33:01,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:33:01,774 INFO L225 Difference]: With dead ends: 231 [2021-11-25 19:33:01,774 INFO L226 Difference]: Without dead ends: 212 [2021-11-25 19:33:01,774 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:33:01,775 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 46 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:33:01,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 358 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-25 19:33:01,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-11-25 19:33:01,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2021-11-25 19:33:01,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 163 states have internal predecessors, (187), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 19:33:01,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2021-11-25 19:33:01,794 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2021-11-25 19:33:01,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:33:01,795 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2021-11-25 19:33:01,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 19:33:01,796 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2021-11-25 19:33:01,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-25 19:33:01,798 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:33:01,798 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] [2021-11-25 19:33:01,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 19:33:02,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:33:02,013 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:33:02,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:33:02,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1926488172, now seen corresponding path program 1 times [2021-11-25 19:33:02,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:33:02,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403964447] [2021-11-25 19:33:02,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:33:02,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:33:02,071 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:33:02,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1582461982] [2021-11-25 19:33:02,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:33:02,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:33:02,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:33:02,073 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:33:02,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 19:33:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:33:02,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 19:33:02,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:33:02,742 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 19:33:02,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:33:02,742 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:33:02,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403964447] [2021-11-25 19:33:02,742 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:33:02,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582461982] [2021-11-25 19:33:02,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582461982] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:33:02,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:33:02,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:33:02,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666848359] [2021-11-25 19:33:02,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:33:02,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:33:02,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:33:02,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:33:02,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:33:02,746 INFO L87 Difference]: Start difference. First operand 169 states and 203 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) [2021-11-25 19:33:03,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:33:03,517 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2021-11-25 19:33:03,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:33:03,521 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 [2021-11-25 19:33:03,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:33:03,523 INFO L225 Difference]: With dead ends: 395 [2021-11-25 19:33:03,523 INFO L226 Difference]: Without dead ends: 242 [2021-11-25 19:33:03,525 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 [2021-11-25 19:33:03,526 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 257 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:33:03,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 296 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 19:33:03,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-11-25 19:33:03,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2021-11-25 19:33:03,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 202 states have (on average 1.193069306930693) internal successors, (241), 208 states have internal predecessors, (241), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 19:33:03,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2021-11-25 19:33:03,562 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2021-11-25 19:33:03,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:33:03,563 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2021-11-25 19:33:03,563 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) [2021-11-25 19:33:03,563 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2021-11-25 19:33:03,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-25 19:33:03,566 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:33:03,567 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] [2021-11-25 19:33:03,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 19:33:03,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:33:03,768 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:33:03,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:33:03,768 INFO L85 PathProgramCache]: Analyzing trace with hash 798103091, now seen corresponding path program 1 times [2021-11-25 19:33:03,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:33:03,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146606966] [2021-11-25 19:33:03,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:33:03,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:33:03,845 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:33:03,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1476337526] [2021-11-25 19:33:03,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:33:03,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:33:03,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:33:03,847 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:33:03,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 19:33:05,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:33:05,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 19:33:05,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:33:05,462 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 19:33:05,462 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:33:05,463 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:33:05,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146606966] [2021-11-25 19:33:05,463 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:33:05,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476337526] [2021-11-25 19:33:05,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476337526] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:33:05,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:33:05,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:33:05,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518962639] [2021-11-25 19:33:05,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:33:05,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:33:05,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:33:05,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:33:05,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:33:05,466 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 19:33:07,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:33:07,222 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2021-11-25 19:33:07,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:33:07,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-11-25 19:33:07,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:33:07,233 INFO L225 Difference]: With dead ends: 411 [2021-11-25 19:33:07,234 INFO L226 Difference]: Without dead ends: 216 [2021-11-25 19:33:07,234 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 [2021-11-25 19:33:07,235 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:33:07,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 389 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-25 19:33:07,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-25 19:33:07,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-25 19:33:07,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 210 states have internal predecessors, (243), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2021-11-25 19:33:07,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2021-11-25 19:33:07,252 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2021-11-25 19:33:07,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:33:07,253 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2021-11-25 19:33:07,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 19:33:07,253 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2021-11-25 19:33:07,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-25 19:33:07,255 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:33:07,256 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] [2021-11-25 19:33:07,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-25 19:33:07,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-25 19:33:07,469 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:33:07,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:33:07,469 INFO L85 PathProgramCache]: Analyzing trace with hash -320971085, now seen corresponding path program 1 times [2021-11-25 19:33:07,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:33:07,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422958493] [2021-11-25 19:33:07,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:33:07,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:33:07,544 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:33:07,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1203548268] [2021-11-25 19:33:07,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:33:07,547 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:33:07,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:33:07,548 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:33:07,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c113bf13-cb59-463e-b86f-a97bb7329c46/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 19:34:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:34:12,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-25 19:34:12,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:34:12,970 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 19:34:12,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:34:13,200 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 19:34:13,201 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:34:13,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422958493] [2021-11-25 19:34:13,201 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:34:13,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203548268] [2021-11-25 19:34:13,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203548268] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:34:13,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1258294013] [2021-11-25 19:34:13,224 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-25 19:34:13,224 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:34:13,229 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:34:13,235 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:34:13,235 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:34:13,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:13,366 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 [2021-11-25 19:34:13,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:13,397 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 19:34:13,398 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 [2021-11-25 19:34:13,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:34:13,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:34:13,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:13,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-25 19:34:13,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:13,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:13,527 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 19:34:13,527 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 [2021-11-25 19:34:13,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:13,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:13,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 19:34:13,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:13,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:13,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:13,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:13,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2021-11-25 19:34:13,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:13,615 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 [2021-11-25 19:34:13,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:13,635 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 [2021-11-25 19:34:14,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2021-11-25 19:34:14,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 76 [2021-11-25 19:34:14,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 19:34:14,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 19:34:14,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-25 19:34:14,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-25 19:34:14,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 19:34:14,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 19:34:14,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 19:34:14,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,409 INFO L354 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2021-11-25 19:34:14,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2021-11-25 19:34:14,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2021-11-25 19:34:14,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 19:34:14,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-25 19:34:14,603 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 [2021-11-25 19:34:14,608 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 [2021-11-25 19:34:14,614 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 11 treesize of output 7 [2021-11-25 19:34:14,669 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 19:34:14,669 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 57 treesize of output 60 [2021-11-25 19:34:14,699 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 19:34:14,699 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 51 treesize of output 54 [2021-11-25 19:34:14,732 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 19:34:14,732 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 47 treesize of output 50 [2021-11-25 19:34:14,805 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 [2021-11-25 19:34:14,814 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 [2021-11-25 19:34:14,821 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 [2021-11-25 19:34:14,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 19:34:14,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-25 19:34:14,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:14,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-25 19:34:15,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 19:34:15,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-25 19:34:15,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:15,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-25 19:34:21,987 WARN L227 SmtUtils]: Spent 6.73s 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) [2021-11-25 19:34:21,988 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 19:34:21,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1998 treesize of output 1475 [2021-11-25 19:34:22,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:31,634 WARN L227 SmtUtils]: Spent 9.52s 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) [2021-11-25 19:34:31,634 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 19:34:31,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2099 treesize of output 1817 [2021-11-25 19:34:32,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:32,292 INFO L244 Elim1Store]: Index analysis took 384 ms [2021-11-25 19:34:43,757 WARN L227 SmtUtils]: Spent 11.16s on a formula simplification. DAG size of input: 244 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 19:34:43,758 INFO L354 Elim1Store]: treesize reduction 2566, result has 31.1 percent of original size [2021-11-25 19:34:43,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 1377 [2021-11-25 19:34:44,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:44,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:44,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:44,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:44,450 INFO L244 Elim1Store]: Index analysis took 198 ms [2021-11-25 19:34:45,737 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-25 19:34:45,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 42 treesize of output 73 [2021-11-25 19:34:46,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:46,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:46,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:46,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:46,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 46 [2021-11-25 19:34:46,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:46,742 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 19:34:46,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 20 [2021-11-25 19:34:46,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:47,160 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:34:47,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61 [2021-11-25 19:34:47,234 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:34:47,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:47,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:47,324 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:34:47,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-11-25 19:34:47,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:47,505 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 19:34:47,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 20 [2021-11-25 19:34:47,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:47,646 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:34:47,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-11-25 19:34:47,688 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:34:47,722 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:34:47,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:47,934 INFO L244 Elim1Store]: Index analysis took 112 ms [2021-11-25 19:34:47,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:48,630 INFO L354 Elim1Store]: treesize reduction 20, result has 62.3 percent of original size [2021-11-25 19:34:48,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 73 treesize of output 83 [2021-11-25 19:34:48,709 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:34:48,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:48,774 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:34:48,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-25 19:34:49,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:49,716 INFO L244 Elim1Store]: Index analysis took 136 ms [2021-11-25 19:34:52,064 INFO L354 Elim1Store]: treesize reduction 15, result has 99.2 percent of original size [2021-11-25 19:34:52,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 3149 treesize of output 4526 [2021-11-25 19:34:52,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:52,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:52,891 INFO L244 Elim1Store]: Index analysis took 120 ms [2021-11-25 19:34:53,102 INFO L354 Elim1Store]: treesize reduction 1822, result has 0.1 percent of original size [2021-11-25 19:34:53,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 3165 treesize of output 1 [2021-11-25 19:34:53,156 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:34:53,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:34:53,461 INFO L244 Elim1Store]: Index analysis took 235 ms [2021-11-25 19:34:56,365 INFO L354 Elim1Store]: treesize reduction 39, result has 97.9 percent of original size [2021-11-25 19:34:56,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 3265 treesize of output 4630 [2021-11-25 19:34:58,334 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:34:58,394 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:34:58,437 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:34:58,479 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:34:58,560 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:01,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:01,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:01,363 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:35:01,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:01,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:01,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:01,534 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:35:01,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3088 treesize of output 2890 [2021-11-25 19:35:01,629 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:01,680 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:01,726 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:01,773 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:01,856 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:01,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:01,999 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:35:02,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:02,021 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:35:02,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:02,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:02,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:02,108 INFO L244 Elim1Store]: Index analysis took 122 ms [2021-11-25 19:35:02,258 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:35:02,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3188 treesize of output 2984 [2021-11-25 19:35:02,326 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:02,664 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:35:02,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:02,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:02,697 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:35:02,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:02,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:02,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:02,781 INFO L244 Elim1Store]: Index analysis took 117 ms [2021-11-25 19:35:02,830 INFO L354 Elim1Store]: treesize reduction 189, result has 0.5 percent of original size [2021-11-25 19:35:02,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3072 treesize of output 1 [2021-11-25 19:35:04,360 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:04,422 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:04,477 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:04,546 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:04,644 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:35:04,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:04,666 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:35:04,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:04,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:04,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3167 treesize of output 2791 [2021-11-25 19:35:04,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:04,828 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:35:04,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:04,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:04,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3067 treesize of output 2697 [2021-11-25 19:35:05,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:05,051 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:35:05,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:05,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:05,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3051 treesize of output 2687 [2021-11-25 19:35:05,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:05,442 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:35:05,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:05,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:06,228 INFO L354 Elim1Store]: treesize reduction 430, result has 62.8 percent of original size [2021-11-25 19:35:06,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3128 treesize of output 3414 [2021-11-25 19:35:06,489 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:35:06,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:06,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:06,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:06,629 INFO L244 Elim1Store]: Index analysis took 140 ms [2021-11-25 19:35:07,500 INFO L354 Elim1Store]: treesize reduction 430, result has 63.2 percent of original size [2021-11-25 19:35:07,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3244 treesize of output 3530 [2021-11-25 19:35:07,634 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:07,699 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:07,743 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:07,824 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:07,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:08,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:08,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:08,067 INFO L244 Elim1Store]: Index analysis took 109 ms [2021-11-25 19:35:08,196 INFO L354 Elim1Store]: treesize reduction 1160, result has 0.1 percent of original size [2021-11-25 19:35:08,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3144 treesize of output 2700 [2021-11-25 19:35:09,001 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:09,052 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:09,091 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:09,144 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:09,238 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:35:09,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:09,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:09,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:09,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3167 treesize of output 2791 [2021-11-25 19:35:09,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:09,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:09,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:09,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3067 treesize of output 2697 [2021-11-25 19:35:09,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:09,664 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:35:09,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:09,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:09,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3051 treesize of output 2687 [2021-11-25 19:35:10,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:10,061 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:35:10,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:10,081 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:35:10,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:10,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:10,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:10,192 INFO L244 Elim1Store]: Index analysis took 160 ms [2021-11-25 19:35:10,214 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 19:35:10,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3128 treesize of output 2690 [2021-11-25 19:35:10,400 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:35:10,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:10,426 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:35:10,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:10,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:10,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:10,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:10,581 INFO L244 Elim1Store]: Index analysis took 181 ms [2021-11-25 19:35:10,601 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 19:35:10,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3244 treesize of output 2794 [2021-11-25 19:35:10,659 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:10,716 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:10,753 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:10,843 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:35:10,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:10,979 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:35:10,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:11,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:11,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:11,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:11,097 INFO L244 Elim1Store]: Index analysis took 132 ms [2021-11-25 19:35:11,124 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 19:35:11,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3144 treesize of output 2700 [2021-11-25 19:35:13,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:14,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:14,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:14,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:14,134 INFO L244 Elim1Store]: Index analysis took 258 ms [2021-11-25 19:35:21,048 WARN L227 SmtUtils]: Spent 6.55s on a formula simplification. DAG size of input: 152 DAG size of output: 122 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 19:35:21,049 INFO L354 Elim1Store]: treesize reduction 1554, result has 60.0 percent of original size [2021-11-25 19:35:21,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 137218 treesize of output 137340 [2021-11-25 19:44:36,838 WARN L227 SmtUtils]: Spent 5.74s on a formula simplification that was a NOOP. DAG size: 3651 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)