./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 60f6803c5e3744d9299e1af81cd011414f5ac623b556345642fa85a1d93686e4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:52:18,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:52:18,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:52:18,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:52:18,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:52:18,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:52:18,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:52:18,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:52:18,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:52:18,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:52:18,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:52:18,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:52:18,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:52:18,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:52:18,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:52:18,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:52:18,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:52:18,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:52:18,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:52:18,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:52:18,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:52:18,168 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:52:18,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:52:18,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:52:18,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:52:18,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:52:18,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:52:18,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:52:18,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:52:18,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:52:18,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:52:18,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:52:18,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:52:18,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:52:18,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:52:18,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:52:18,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:52:18,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:52:18,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:52:18,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:52:18,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:52:18,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:52:18,244 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:52:18,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:52:18,245 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:52:18,245 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:52:18,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:52:18,247 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:52:18,247 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:52:18,247 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:52:18,247 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:52:18,248 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:52:18,249 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:52:18,249 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:52:18,249 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:52:18,250 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:52:18,250 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:52:18,250 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:52:18,250 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:52:18,251 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:52:18,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:52:18,252 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:52:18,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:52:18,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:52:18,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:52:18,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:52:18,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:52:18,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:52:18,255 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:52:18,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:52:18,255 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:52:18,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:52:18,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:52:18,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:52:18,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:52:18,257 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:52:18,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:52:18,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:52:18,257 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:52:18,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:52:18,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:52:18,258 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:52:18,258 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:52:18,258 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_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 60f6803c5e3744d9299e1af81cd011414f5ac623b556345642fa85a1d93686e4 [2021-11-21 01:52:18,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:52:18,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:52:18,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:52:18,532 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:52:18,533 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:52:18,534 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i [2021-11-21 01:52:18,635 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/data/9189ee963/cdeafd493eb44488951c61aad12c78de/FLAGf3ddd14e7 [2021-11-21 01:52:19,204 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:52:19,205 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i [2021-11-21 01:52:19,227 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/data/9189ee963/cdeafd493eb44488951c61aad12c78de/FLAGf3ddd14e7 [2021-11-21 01:52:19,471 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/data/9189ee963/cdeafd493eb44488951c61aad12c78de [2021-11-21 01:52:19,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:52:19,475 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:52:19,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:52:19,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:52:19,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:52:19,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:52:19" (1/1) ... [2021-11-21 01:52:19,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@364fed6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:19, skipping insertion in model container [2021-11-21 01:52:19,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:52:19" (1/1) ... [2021-11-21 01:52:19,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:52:19,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:52:19,969 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_21138c3b-3f18-4b00-85b1-f0dabffe6acb/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i[33021,33034] [2021-11-21 01:52:20,056 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:52:20,072 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:52:20,129 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_21138c3b-3f18-4b00-85b1-f0dabffe6acb/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test1-2.i[33021,33034] [2021-11-21 01:52:20,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:52:20,263 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:52:20,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:20 WrapperNode [2021-11-21 01:52:20,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:52:20,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:52:20,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:52:20,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:52:20,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:20" (1/1) ... [2021-11-21 01:52:20,329 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:20" (1/1) ... [2021-11-21 01:52:20,387 INFO L137 Inliner]: procedures = 177, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 776 [2021-11-21 01:52:20,387 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:52:20,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:52:20,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:52:20,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:52:20,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:20" (1/1) ... [2021-11-21 01:52:20,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:20" (1/1) ... [2021-11-21 01:52:20,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:20" (1/1) ... [2021-11-21 01:52:20,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:20" (1/1) ... [2021-11-21 01:52:20,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:20" (1/1) ... [2021-11-21 01:52:20,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:20" (1/1) ... [2021-11-21 01:52:20,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:20" (1/1) ... [2021-11-21 01:52:20,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:52:20,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:52:20,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:52:20,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:52:20,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:20" (1/1) ... [2021-11-21 01:52:20,573 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:52:20,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:52:20,599 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:52:20,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:52:20,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:52:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:52:20,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:52:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:52:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:52:20,656 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:52:20,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:52:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:52:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:52:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:52:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:52:20,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:52:20,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:52:20,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:52:20,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:52:20,930 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:52:20,932 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:52:21,724 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:52:22,134 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:52:22,134 INFO L301 CfgBuilder]: Removed 40 assume(true) statements. [2021-11-21 01:52:22,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:52:22 BoogieIcfgContainer [2021-11-21 01:52:22,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:52:22,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:52:22,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:52:22,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:52:22,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:52:19" (1/3) ... [2021-11-21 01:52:22,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10549d7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:52:22, skipping insertion in model container [2021-11-21 01:52:22,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:52:20" (2/3) ... [2021-11-21 01:52:22,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10549d7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:52:22, skipping insertion in model container [2021-11-21 01:52:22,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:52:22" (3/3) ... [2021-11-21 01:52:22,147 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test1-2.i [2021-11-21 01:52:22,164 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:52:22,164 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:52:22,231 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:52:22,250 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:52:22,254 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:52:22,279 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 78 states have (on average 1.7820512820512822) internal successors, (139), 89 states have internal predecessors, (139), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:52:22,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 01:52:22,285 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:52:22,286 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:52:22,286 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:52:22,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:52:22,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1739953547, now seen corresponding path program 1 times [2021-11-21 01:52:22,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:52:22,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980434613] [2021-11-21 01:52:22,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:52:22,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:52:22,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:52:22,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:52:22,465 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:52:22,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980434613] [2021-11-21 01:52:22,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980434613] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:52:22,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:52:22,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:52:22,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910789626] [2021-11-21 01:52:22,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:52:22,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:52:22,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:52:22,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:52:22,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:52:22,507 INFO L87 Difference]: Start difference. First operand has 95 states, 78 states have (on average 1.7820512820512822) internal successors, (139), 89 states have internal predecessors, (139), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-21 01:52:24,389 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:52:24,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:52:24,392 INFO L93 Difference]: Finished difference Result 237 states and 426 transitions. [2021-11-21 01:52:24,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:52:24,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 8 [2021-11-21 01:52:24,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:52:24,417 INFO L225 Difference]: With dead ends: 237 [2021-11-21 01:52:24,417 INFO L226 Difference]: Without dead ends: 128 [2021-11-21 01:52:24,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:52:24,425 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 49 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:52:24,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 217 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-21 01:52:24,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-21 01:52:24,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 81. [2021-11-21 01:52:24,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 75 states have internal predecessors, (83), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:52:24,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 109 transitions. [2021-11-21 01:52:24,474 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 109 transitions. Word has length 8 [2021-11-21 01:52:24,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:52:24,474 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 109 transitions. [2021-11-21 01:52:24,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-21 01:52:24,475 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 109 transitions. [2021-11-21 01:52:24,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-21 01:52:24,478 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:52:24,478 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:52:24,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:52:24,479 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:52:24,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:52:24,480 INFO L85 PathProgramCache]: Analyzing trace with hash -976039302, now seen corresponding path program 1 times [2021-11-21 01:52:24,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:52:24,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904342353] [2021-11-21 01:52:24,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:52:24,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:52:24,502 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:52:24,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [631249094] [2021-11-21 01:52:24,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:52:24,503 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:52:24,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:52:24,510 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:52:24,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:52:24,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:52:24,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:52:24,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:52:24,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:52:24,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:52:25,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:52:25,117 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:52:25,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904342353] [2021-11-21 01:52:25,118 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:52:25,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631249094] [2021-11-21 01:52:25,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631249094] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:52:25,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1224450888] [2021-11-21 01:52:25,168 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-11-21 01:52:25,168 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:52:25,176 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:52:25,184 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:52:25,185 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:52:25,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:25,420 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:52:25,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:25,452 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-21 01:52:25,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 33 treesize of output 43 [2021-11-21 01:52:25,531 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-21 01:52:25,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-21 01:52:25,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:25,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:52:25,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:25,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:52:25,727 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:52:25,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-21 01:52:27,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:52:27,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:52:27,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:52:27,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:27,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:52:28,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:52:28,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:52:28,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:52:28,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:28,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:52:28,350 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:52:28,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1224450888] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:52:28,945 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:52:28,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2021-11-21 01:52:28,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444287801] [2021-11-21 01:52:28,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:52:28,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 01:52:28,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:52:28,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 01:52:28,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-21 01:52:28,949 INFO L87 Difference]: Start difference. First operand 81 states and 109 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 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) [2021-11-21 01:52:31,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:52:31,545 INFO L93 Difference]: Finished difference Result 173 states and 232 transitions. [2021-11-21 01:52:31,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:52:31,551 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 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 31 [2021-11-21 01:52:31,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:52:31,553 INFO L225 Difference]: With dead ends: 173 [2021-11-21 01:52:31,553 INFO L226 Difference]: Without dead ends: 94 [2021-11-21 01:52:31,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-21 01:52:31,556 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 8 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:52:31,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 333 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-21 01:52:31,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-21 01:52:31,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2021-11-21 01:52:31,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 75 states have (on average 1.24) internal successors, (93), 85 states have internal predecessors, (93), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:52:31,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2021-11-21 01:52:31,574 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 31 [2021-11-21 01:52:31,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:52:31,575 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2021-11-21 01:52:31,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 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) [2021-11-21 01:52:31,575 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2021-11-21 01:52:31,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-21 01:52:31,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:52:31,578 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-21 01:52:31,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-21 01:52:31,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:52:31,806 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:52:31,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:52:31,807 INFO L85 PathProgramCache]: Analyzing trace with hash 720340601, now seen corresponding path program 1 times [2021-11-21 01:52:31,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:52:31,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879069767] [2021-11-21 01:52:31,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:52:31,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:52:31,838 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:52:31,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [638035135] [2021-11-21 01:52:31,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:52:31,845 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:52:31,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:52:31,849 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:52:31,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:52:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:52:32,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:52:32,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:52:32,190 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:52:32,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:52:32,355 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:52:32,356 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:52:32,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879069767] [2021-11-21 01:52:32,356 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:52:32,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638035135] [2021-11-21 01:52:32,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638035135] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:52:32,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [286759045] [2021-11-21 01:52:32,361 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-21 01:52:32,373 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:52:32,374 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:52:32,374 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:52:32,374 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:52:32,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:32,482 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:52:32,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:32,496 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-21 01:52:32,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 33 treesize of output 43 [2021-11-21 01:52:32,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:32,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:52:32,555 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-21 01:52:32,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-21 01:52:32,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:32,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:52:32,651 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:52:32,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-21 01:52:33,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:52:33,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:52:33,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:52:33,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:33,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:52:34,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-21 01:52:34,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:52:34,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:52:34,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,270 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:52:34,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:52:34,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-21 01:52:34,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,435 INFO L354 Elim1Store]: treesize reduction 86, result has 15.7 percent of original size [2021-11-21 01:52:34,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 117 treesize of output 125 [2021-11-21 01:52:34,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,508 INFO L354 Elim1Store]: treesize reduction 176, result has 10.7 percent of original size [2021-11-21 01:52:34,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 116 treesize of output 119 [2021-11-21 01:52:34,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:34,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:52:36,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:52:36,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:52:36,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:52:36,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:36,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:52:37,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-21 01:52:37,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:52:37,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:52:37,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,321 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:52:37,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:52:37,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-21 01:52:37,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,481 INFO L354 Elim1Store]: treesize reduction 146, result has 25.9 percent of original size [2021-11-21 01:52:37,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 117 treesize of output 150 [2021-11-21 01:52:37,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,558 INFO L354 Elim1Store]: treesize reduction 86, result has 15.7 percent of original size [2021-11-21 01:52:37,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 143 [2021-11-21 01:52:37,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:37,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:52:37,881 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 93 for LOIs [2021-11-21 01:52:38,172 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:52:39,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [286759045] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:52:39,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:52:39,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2021-11-21 01:52:39,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173741258] [2021-11-21 01:52:39,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:52:39,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-21 01:52:39,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:52:39,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-21 01:52:39,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-21 01:52:39,329 INFO L87 Difference]: Start difference. First operand 91 states and 119 transitions. Second operand has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:52:41,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:52:41,236 INFO L93 Difference]: Finished difference Result 175 states and 234 transitions. [2021-11-21 01:52:41,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-21 01:52:41,244 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2021-11-21 01:52:41,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:52:41,246 INFO L225 Difference]: With dead ends: 175 [2021-11-21 01:52:41,246 INFO L226 Difference]: Without dead ends: 96 [2021-11-21 01:52:41,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-21 01:52:41,248 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 12 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 110 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:52:41,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 444 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 132 Invalid, 0 Unknown, 110 Unchecked, 1.9s Time] [2021-11-21 01:52:41,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-21 01:52:41,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-11-21 01:52:41,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 79 states have (on average 1.2278481012658229) internal successors, (97), 89 states have internal predecessors, (97), 14 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-21 01:52:41,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 125 transitions. [2021-11-21 01:52:41,264 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 125 transitions. Word has length 44 [2021-11-21 01:52:41,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:52:41,265 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 125 transitions. [2021-11-21 01:52:41,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:52:41,265 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 125 transitions. [2021-11-21 01:52:41,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-21 01:52:41,267 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:52:41,267 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-21 01:52:41,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:52:41,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:52:41,489 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:52:41,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:52:41,490 INFO L85 PathProgramCache]: Analyzing trace with hash 659673767, now seen corresponding path program 1 times [2021-11-21 01:52:41,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:52:41,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140733493] [2021-11-21 01:52:41,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:52:41,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:52:41,502 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:52:41,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [785202544] [2021-11-21 01:52:41,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:52:41,511 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:52:41,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:52:41,512 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:52:41,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21138c3b-3f18-4b00-85b1-f0dabffe6acb/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:52:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:52:41,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:52:41,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:52:41,792 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-21 01:52:41,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:52:41,920 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-21 01:52:41,921 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:52:41,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140733493] [2021-11-21 01:52:41,921 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:52:41,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785202544] [2021-11-21 01:52:41,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785202544] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:52:41,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2132731654] [2021-11-21 01:52:41,930 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-21 01:52:41,930 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:52:41,931 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:52:41,931 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:52:41,931 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:52:42,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:42,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:52:42,064 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-21 01:52:42,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-21 01:52:42,107 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:52:42,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-21 01:52:42,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:42,128 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:52:42,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2021-11-21 01:52:42,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:42,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:52:42,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:42,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:42,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:42,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:52:43,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:52:43,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:52:43,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:52:43,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:52:43,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:52:43,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-21 01:52:43,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,371 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:52:43,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:52:43,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-21 01:52:43,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,489 INFO L354 Elim1Store]: treesize reduction 146, result has 25.9 percent of original size [2021-11-21 01:52:43,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 117 treesize of output 150 [2021-11-21 01:52:43,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,545 INFO L354 Elim1Store]: treesize reduction 86, result has 15.7 percent of original size [2021-11-21 01:52:43,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 143 [2021-11-21 01:52:43,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:43,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:52:44,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:52:44,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:52:44,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:52:44,123 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-21 01:52:44,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 88 [2021-11-21 01:52:44,151 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 01:52:44,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 91 [2021-11-21 01:52:44,176 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 01:52:44,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 94 [2021-11-21 01:52:44,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:52:44,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:52:44,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:52:44,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-21 01:52:44,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:52:44,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:52:44,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:52:44,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-21 01:52:44,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:52:44,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:52:55,492 WARN L227 SmtUtils]: Spent 10.58s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:52:55,493 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:52:55,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2837 treesize of output 2314 [2021-11-21 01:52:55,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:06,742 WARN L227 SmtUtils]: Spent 11.21s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:53:06,743 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:53:06,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2938 treesize of output 2656 [2021-11-21 01:53:18,650 WARN L227 SmtUtils]: Spent 11.78s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:53:18,651 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-21 01:53:18,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2906 treesize of output 2676 [2021-11-21 01:53:20,315 INFO L354 Elim1Store]: treesize reduction 150, result has 21.9 percent of original size [2021-11-21 01:53:20,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 25944 treesize of output 25972 [2021-11-21 01:53:21,337 INFO L354 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2021-11-21 01:53:21,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 25954 treesize of output 25965 [2021-11-21 01:53:23,320 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:53:23,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:23,659 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-21 01:53:23,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-21 01:53:24,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:24,487 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:53:24,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61