./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh --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 64683904124af3c899dbc8dc5465d8741c0ff10567af23b7315c834db1157458 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 15:01:50,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:01:50,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:01:50,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:01:50,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:01:50,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:01:50,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:01:50,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:01:50,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:01:50,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:01:50,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:01:50,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:01:50,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:01:50,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:01:50,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:01:50,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:01:50,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:01:50,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:01:50,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:01:50,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:01:50,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:01:50,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:01:50,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:01:50,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:01:50,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:01:50,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:01:50,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:01:50,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:01:50,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:01:50,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:01:50,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:01:50,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:01:50,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:01:50,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:01:50,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:01:50,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:01:50,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:01:50,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:01:50,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:01:50,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:01:50,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:01:50,184 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 15:01:50,205 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:01:50,205 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:01:50,206 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:01:50,206 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:01:50,206 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:01:50,207 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:01:50,207 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:01:50,207 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:01:50,207 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:01:50,207 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:01:50,208 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:01:50,208 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:01:50,208 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:01:50,208 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:01:50,208 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:01:50,209 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:01:50,209 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:01:50,209 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:01:50,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:01:50,210 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:01:50,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:01:50,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:01:50,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:01:50,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:01:50,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:01:50,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:01:50,211 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:01:50,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:01:50,211 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:01:50,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:01:50,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:01:50,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:01:50,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:01:50,212 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:01:50,213 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:01:50,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:01:50,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:01:50,213 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:01:50,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:01:50,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:01:50,214 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:01:50,214 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64683904124af3c899dbc8dc5465d8741c0ff10567af23b7315c834db1157458 [2022-12-14 15:01:50,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:01:50,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:01:50,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:01:50,430 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:01:50,431 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:01:50,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i [2022-12-14 15:01:53,040 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:01:53,223 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:01:53,224 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i [2022-12-14 15:01:53,234 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/data/013b3b5f5/53aeabb947174b938d91c68c80899894/FLAG03815d13c [2022-12-14 15:01:53,245 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/data/013b3b5f5/53aeabb947174b938d91c68c80899894 [2022-12-14 15:01:53,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:01:53,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:01:53,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:01:53,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:01:53,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:01:53,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:01:53" (1/1) ... [2022-12-14 15:01:53,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d55d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:53, skipping insertion in model container [2022-12-14 15:01:53,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:01:53" (1/1) ... [2022-12-14 15:01:53,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:01:53,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:01:53,612 WARN L237 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_6944836b-22be-4103-bec3-48aea92932f8/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i[33021,33034] [2022-12-14 15:01:53,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:01:53,746 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:01:53,774 WARN L237 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_6944836b-22be-4103-bec3-48aea92932f8/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test4-2.i[33021,33034] [2022-12-14 15:01:53,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:01:53,850 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:01:53,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:53 WrapperNode [2022-12-14 15:01:53,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:01:53,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:01:53,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:01:53,851 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:01:53,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:53" (1/1) ... [2022-12-14 15:01:53,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:53" (1/1) ... [2022-12-14 15:01:53,911 INFO L138 Inliner]: procedures = 177, calls = 400, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1300 [2022-12-14 15:01:53,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:01:53,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:01:53,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:01:53,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:01:53,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:53" (1/1) ... [2022-12-14 15:01:53,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:53" (1/1) ... [2022-12-14 15:01:53,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:53" (1/1) ... [2022-12-14 15:01:53,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:53" (1/1) ... [2022-12-14 15:01:53,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:53" (1/1) ... [2022-12-14 15:01:53,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:53" (1/1) ... [2022-12-14 15:01:53,967 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:53" (1/1) ... [2022-12-14 15:01:53,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:53" (1/1) ... [2022-12-14 15:01:53,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:01:53,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:01:53,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:01:53,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:01:53,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:53" (1/1) ... [2022-12-14 15:01:53,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:01:53,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:01:54,000 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:01:54,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:01:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:01:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 15:01:54,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 15:01:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:01:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 15:01:54,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 15:01:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:01:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:01:54,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:01:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 15:01:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 15:01:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:01:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:01:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:01:54,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:01:54,214 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:01:54,216 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:01:55,448 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:01:55,819 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:01:55,819 INFO L300 CfgBuilder]: Removed 69 assume(true) statements. [2022-12-14 15:01:55,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:01:55 BoogieIcfgContainer [2022-12-14 15:01:55,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:01:55,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:01:55,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:01:55,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:01:55,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:01:53" (1/3) ... [2022-12-14 15:01:55,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d375b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:01:55, skipping insertion in model container [2022-12-14 15:01:55,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:01:53" (2/3) ... [2022-12-14 15:01:55,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d375b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:01:55, skipping insertion in model container [2022-12-14 15:01:55,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:01:55" (3/3) ... [2022-12-14 15:01:55,830 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test4-2.i [2022-12-14 15:01:55,843 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:01:55,843 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 15:01:55,885 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:01:55,891 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2addadd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:01:55,891 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 15:01:55,895 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 121 states have (on average 1.7933884297520661) internal successors, (217), 132 states have internal predecessors, (217), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 15:01:55,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 15:01:55,902 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:01:55,902 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:01:55,903 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:01:55,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:01:55,907 INFO L85 PathProgramCache]: Analyzing trace with hash 190255821, now seen corresponding path program 1 times [2022-12-14 15:01:55,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:01:55,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451350261] [2022-12-14 15:01:55,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:01:55,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:01:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:01:56,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:01:56,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:01:56,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451350261] [2022-12-14 15:01:56,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451350261] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:01:56,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:01:56,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:01:56,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133030267] [2022-12-14 15:01:56,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:01:56,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:01:56,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:01:56,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:01:56,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:01:56,105 INFO L87 Difference]: Start difference. First operand has 141 states, 121 states have (on average 1.7933884297520661) internal successors, (217), 132 states have internal predecessors, (217), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) 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) [2022-12-14 15:01:57,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:01:57,157 INFO L93 Difference]: Finished difference Result 375 states and 678 transitions. [2022-12-14 15:01:57,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:01:57,163 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 [2022-12-14 15:01:57,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:01:57,171 INFO L225 Difference]: With dead ends: 375 [2022-12-14 15:01:57,171 INFO L226 Difference]: Without dead ends: 220 [2022-12-14 15:01:57,173 INFO L412 NwaCegarLoop]: 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 [2022-12-14 15:01:57,176 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 97 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:01:57,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 332 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 15:01:57,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-12-14 15:01:57,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 127. [2022-12-14 15:01:57,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 108 states have (on average 1.212962962962963) internal successors, (131), 118 states have internal predecessors, (131), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 15:01:57,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2022-12-14 15:01:57,218 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 8 [2022-12-14 15:01:57,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:01:57,219 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2022-12-14 15:01:57,219 INFO L496 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) [2022-12-14 15:01:57,219 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2022-12-14 15:01:57,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 15:01:57,222 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:01:57,222 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:01:57,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:01:57,223 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:01:57,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:01:57,223 INFO L85 PathProgramCache]: Analyzing trace with hash -910103328, now seen corresponding path program 1 times [2022-12-14 15:01:57,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:01:57,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694319860] [2022-12-14 15:01:57,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:01:57,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:01:57,441 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:01:57,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [293723520] [2022-12-14 15:01:57,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:01:57,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:01:57,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:01:57,443 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:01:57,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:01:58,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:01:58,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:01:58,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:01:58,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:01:58,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:01:58,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:01:58,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:01:58,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694319860] [2022-12-14 15:01:58,399 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:01:58,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293723520] [2022-12-14 15:01:58,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293723520] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:01:58,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [344127138] [2022-12-14 15:01:58,415 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-12-14 15:01:58,415 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:01:58,418 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:01:58,422 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:01:58,422 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:01:58,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,529 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:01:58,557 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 15:01:58,558 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:01:58,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 15:01:58,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 15:01:58,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,590 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:01:58,592 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:01:58,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:01:58,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:01:58,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 15:01:58,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:58,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 15:01:58,980 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 15:01:58,980 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:01:59,012 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 15:01:59,012 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:01:59,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 15:01:59,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,034 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:01:59,035 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:01:59,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 15:01:59,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:01:59,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:01:59,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 15:01:59,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:01:59,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-12-14 15:01:59,485 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:02:07,067 WARN L233 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 223 DAG size of output: 212 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:02:14,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [344127138] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:02:14,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 15:02:14,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-12-14 15:02:14,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369428101] [2022-12-14 15:02:14,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:02:14,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 15:02:14,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:02:14,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 15:02:14,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-12-14 15:02:14,065 INFO L87 Difference]: Start difference. First operand 127 states and 163 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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) [2022-12-14 15:02:17,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:02:19,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:02:21,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:02:22,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:02:24,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:02:24,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:02:24,808 INFO L93 Difference]: Finished difference Result 265 states and 340 transitions. [2022-12-14 15:02:24,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 15:02:24,808 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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 52 [2022-12-14 15:02:24,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:02:24,809 INFO L225 Difference]: With dead ends: 265 [2022-12-14 15:02:24,809 INFO L226 Difference]: Without dead ends: 140 [2022-12-14 15:02:24,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-12-14 15:02:24,810 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 2 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:02:24,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 265 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 97 Invalid, 3 Unknown, 0 Unchecked, 10.1s Time] [2022-12-14 15:02:24,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-12-14 15:02:24,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2022-12-14 15:02:24,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.194915254237288) internal successors, (141), 128 states have internal predecessors, (141), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 15:02:24,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2022-12-14 15:02:24,822 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 52 [2022-12-14 15:02:24,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:02:24,822 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2022-12-14 15:02:24,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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) [2022-12-14 15:02:24,822 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2022-12-14 15:02:24,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 15:02:24,823 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:02:24,824 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:02:24,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:02:25,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-12-14 15:02:25,026 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:02:25,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:02:25,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1562765067, now seen corresponding path program 1 times [2022-12-14 15:02:25,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:02:25,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8394654] [2022-12-14 15:02:25,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:25,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:02:25,160 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:02:25,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [407020989] [2022-12-14 15:02:25,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:25,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:02:25,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:02:25,161 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:02:25,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:02:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:25,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:02:25,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:02:25,947 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 15:02:25,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:02:26,023 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 15:02:26,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:02:26,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8394654] [2022-12-14 15:02:26,024 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:02:26,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407020989] [2022-12-14 15:02:26,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407020989] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:02:26,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [660318229] [2022-12-14 15:02:26,028 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-12-14 15:02:26,028 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:02:26,029 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:02:26,029 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:02:26,029 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:02:26,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,119 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:02:26,144 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 15:02:26,145 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:02:26,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,154 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:02:26,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,166 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 15:02:26,167 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:02:26,201 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 15:02:26,201 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:02:26,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 15:02:26,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 15:02:26,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 15:02:26,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:02:26,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:02:26,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 15:02:26,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 15:02:26,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 15:02:26,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 15:02:26,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 15:02:26,731 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 15:02:26,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 66 [2022-12-14 15:02:26,788 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 15:02:26,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-12-14 15:02:26,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:26,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 15:02:26,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 15:02:27,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,090 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:02:27,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,099 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 15:02:27,100 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:02:27,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,111 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:02:27,136 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 15:02:27,136 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:02:27,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 15:02:27,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 15:02:27,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 15:02:27,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 15:02:27,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:02:27,521 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:02:27,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 15:02:27,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 15:02:27,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,606 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 15:02:27,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 15:02:27,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 15:02:27,772 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 15:02:27,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-12-14 15:02:27,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-12-14 15:02:27,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 15:02:27,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:27,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 15:02:28,073 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-12-14 15:02:28,141 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:02:42,886 WARN L233 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:02:52,562 WARN L233 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 250 DAG size of output: 240 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:03:05,143 WARN L233 SmtUtils]: Spent 6.46s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:03:17,322 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:03:18,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [660318229] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:03:18,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 15:03:18,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-12-14 15:03:18,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871247001] [2022-12-14 15:03:18,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:03:18,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 15:03:18,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:03:18,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 15:03:18,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-12-14 15:03:18,121 INFO L87 Difference]: Start difference. First operand 137 states and 173 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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) [2022-12-14 15:03:20,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:03:22,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:03:24,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:03:26,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:03:28,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:03:30,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:03:32,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:03:34,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:03:36,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:03:38,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:03:40,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:03:45,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:03:45,440 INFO L93 Difference]: Finished difference Result 267 states and 342 transitions. [2022-12-14 15:03:45,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 15:03:45,440 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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 65 [2022-12-14 15:03:45,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:03:45,442 INFO L225 Difference]: With dead ends: 267 [2022-12-14 15:03:45,442 INFO L226 Difference]: Without dead ends: 142 [2022-12-14 15:03:45,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 50.0s TimeCoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-12-14 15:03:45,444 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:03:45,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 453 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 10 Unknown, 0 Unchecked, 27.3s Time] [2022-12-14 15:03:45,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-12-14 15:03:45,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-12-14 15:03:45,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 122 states have (on average 1.1885245901639345) internal successors, (145), 132 states have internal predecessors, (145), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 17 states have call successors, (17) [2022-12-14 15:03:45,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2022-12-14 15:03:45,475 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 65 [2022-12-14 15:03:45,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:03:45,475 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2022-12-14 15:03:45,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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) [2022-12-14 15:03:45,476 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2022-12-14 15:03:45,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 15:03:45,477 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:45,478 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:45,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:03:45,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:03:45,680 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:03:45,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:45,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1076213087, now seen corresponding path program 1 times [2022-12-14 15:03:45,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:03:45,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330195217] [2022-12-14 15:03:45,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:45,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:03:45,804 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:03:45,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [446607821] [2022-12-14 15:03:45,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:45,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:03:45,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:03:45,805 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:03:45,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6944836b-22be-4103-bec3-48aea92932f8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 15:03:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:03:46,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:03:46,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:03:46,475 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 15:03:46,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:03:46,541 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 15:03:46,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:03:46,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330195217] [2022-12-14 15:03:46,541 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:03:46,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446607821] [2022-12-14 15:03:46,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446607821] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:03:46,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1008188795] [2022-12-14 15:03:46,545 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-12-14 15:03:46,545 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:03:46,546 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:03:46,546 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:03:46,546 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:03:46,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,599 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:03:46,631 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 15:03:46,631 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:03:46,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 15:03:46,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 15:03:46,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,657 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:03:46,658 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:03:46,830 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:03:46,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 15:03:46,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 15:03:46,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:03:46,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 15:03:46,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 15:03:46,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 15:03:46,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:46,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 15:03:47,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 15:03:47,083 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 15:03:47,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-12-14 15:03:47,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-12-14 15:03:47,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 15:03:47,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 15:03:47,238 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:03:47,241 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:03:47,245 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:03:47,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-12-14 15:03:47,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-12-14 15:03:47,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-12-14 15:03:47,280 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:03:47,284 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:03:47,288 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:03:47,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-12-14 15:03:47,351 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 15:03:47,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 15:03:47,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:47,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-12-14 15:03:47,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 15:03:47,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 15:03:48,057 INFO L217 Elim1Store]: Index analysis took 378 ms [2022-12-14 15:03:49,745 INFO L321 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2022-12-14 15:03:49,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 10752670 treesize of output 10752673 [2022-12-14 15:03:50,258 INFO L217 Elim1Store]: Index analysis took 392 ms [2022-12-14 15:03:52,626 INFO L321 Elim1Store]: treesize reduction 144, result has 12.7 percent of original size [2022-12-14 15:03:52,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 10752675 treesize of output 10752677 [2022-12-14 15:04:00,030 WARN L233 SmtUtils]: Spent 7.37s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 15:04:00,031 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-12-14 15:04:00,031 INFO L350 Elim1Store]: Elim1 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 1986 treesize of output 1481 [2022-12-14 15:04:17,382 WARN L233 SmtUtils]: Spent 17.21s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 15:04:17,383 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-12-14 15:04:17,383 INFO L350 Elim1Store]: Elim1 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 2005 treesize of output 1824 [2022-12-14 15:04:17,998 INFO L217 Elim1Store]: Index analysis took 485 ms [2022-12-14 15:04:32,982 WARN L233 SmtUtils]: Spent 14.62s on a formula simplification. DAG size of input: 249 DAG size of output: 147 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 15:04:32,983 INFO L321 Elim1Store]: treesize reduction 2466, result has 32.0 percent of original size [2022-12-14 15:04:32,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 2097 [2022-12-14 15:04:34,314 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-12-14 15:04:34,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 73 [2022-12-14 15:04:34,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-14 15:04:34,566 INFO L217 Elim1Store]: Index analysis took 125 ms [2022-12-14 15:04:35,494 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:04:35,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 94 [2022-12-14 15:04:40,070 INFO L217 Elim1Store]: Index analysis took 445 ms